Consulta: subjectFacets:"Agricultural Engineering"
Registros recuperados: 70
Data/hora: 12/06/2024 05:32:12

Current status and overview of farm mechanization in Pakistan – A review
Provedor de dados: 111
Autores: Rehman, Tanzeel ur; Usman Khan, Muhammad; Tayyab, Muhammad; Waqar Akram, Muhammad; Faheem, Muhammad.
Economic growth in Pakistani agricultural sector lags behind growth in industry and services, creating an ever widening rural-urban income fissure.  Agricultural mechanization plays a strategic role in improving agricultural production and productivity in developing countries. The average farm size in Pakistan is small (2.5 acres) and small and marginal land holdings (less than 2.0 ha) account for 85% of land holdings.  Mechanizing small and non-contiguous group of small farms is against ‘economies of scale’ for individual ownership of farm machinery. It was observed that there was a direct correlation between farm power availability and productivity during the past six decades. Being an agrarian country, mechanization can be called as back bone of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Farm Machinery farm mechanization  tractor population  farm power  agricultural machinery.
Ano: 2016
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3650

ICT monitoring and mathematical modelling of dairy cows performances  in hot climate conditions: a study case in Po valley (Italy)
Provedor de dados: 111
Autores: Bonora, Filippo; Pastell, Matti; Benni, Stefano; Tassinari, Patrizia; Torreggiani, Daniele.
Automatic Milking Systems (AMS) measure and record specific data about milk production and cow behaviour, providing farmers with useful real-time information for each animal. At the same time, indoor climatic conditions in terms of temperature and humidity within a dairy livestock barn represent a well-known crucial issue in farm building design and management, since these parameters can remarkably influence cows behaviour, milk yield and animal welfare.The goal of the study is to develop and test an innovative procedure for the comprehensive analysis of AMS-generated multi-variable time-series, with a focus on the analysis of the relationship between milk production and indoor climatic conditions. The specific purpose of the study is to develop and test a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Structures and Environment Precision Livestock Farming; THI (Temperature Humidity Index); Productivity; Dairy Cow.
Ano: 2018
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4679

Performance evaluation of a bush mango (irvingia gabonensis) nut cracking machine
Provedor de dados: 111
Autores: AVIARA, NDUBISI A.; Iyilade, Idowu J.; Oyeniyi, Samuel K.; Aremu, Ademola K.
A bush mango (Irvingia gabonensis) nut handling machine was developed to ease the tedium involved in the cracking operation and enhance the efficiency of separating the kernels from hulls. The machine consists of a hopper, cracking unit barrel, electric motor, blower, tool frame, hull outlet and kernel outlet. It operates on the principle of impact using centrifugal force from the baffles on a spinning disc. Results of performance tests carried out using nuts at four moisture levels in the range of 7.52-20.6% (d.b) showed that percent effective cracking decreased, while percentage kernel breakage increased with increase in feed rate, moisture content and resident time of nuts in the cracking chamber. Winnowing efficiency increased with feed rate and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Post harvest Technology; Crop Processing Bush mango nut; Design and construction; Performance evaluation; Cracking; Efficiency.
Ano: 2019
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5093

Prevention aspects for avoiding run-over incidents with self-propelled agricultural machinery
Provedor de dados: 111
Autores: Mayrhofer, Hannes; Quendler, Elisabeth; Boxberger, Josef.
Run-overs are one of the most common incident scenarios with tractors, self-propelled harvesting and load transportation machines in Austrian agriculture.  The aim of the study was to describe sustainable prevention measures against these kinds of incidents.  For this purpose, the compliance with safety standards and directives in new machinery was investigated, currently available prevention equipment was identified and manufacturers were asked about the difficulties in the implementation of prevention measures against run-overs in new vehicles.  In addition, a literature and internet research was done.  The evaluation of new machines showed that self-propelled harvesting machines and tractors tended to be more frequently equipped with relevant safety...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Accident Prevention agricultural machinery; Run-over; Incident; Prevention.
Ano: 2014
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2853

Development and evaluation of nitrogen (liquid Urea) applicator for straw mulched no-till wheat
Provedor de dados: 111
Autores: Dixit, Jagvir Singh; Mahal, Jaskarn Singh; Manes, Gursahib Singh; Singh, Manjeet.
The broadcasting of urea under high straw no-till farming often exhibit suppressed yields because of lesser nitrogen availability due to slower soil mineralization and greater N immobilization, de-nitrification and ammonia volatilization.  Prior to development of nitrogen (liquid urea) applicator, appropriate machines were not available for application of urea into the soil surface in a directly sown high straw mulched wheat crop.  To solve the problems of urea application in high straw no-till farming, self-propelled nitrogen (liquid urea) applicator was developed and evaluated under actual field conditions.  Average field capacity and efficiency of the applicator were found to be 0.33 ha/h and 80.49%, respectively.  Total plant N uptake at maturity was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Farm Power Machinery Nitrogen (liquid urea) applicator  broadcasting  straw load  field capacity  nitrogen uptake  yield.
Ano: 2013
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2646

Effect of spade angle and spading frequency of spading machine on specific soil resistance and pulverization
Provedor de dados: 111
Autores: Dogra, Ritu.
The effect of spade angle and spading frequency on various dependent variables, i.e. specific soil resistance encountered, energy consumed per unit volume of soil moved, weighted mean clod size, soil bulk density, soil cone index and cone index ratio were studied.  The experiments were conducted in soil having 15.7% clay, 53.6% silt, and 30.7% sand.  During experimentation, moisture content of soil was maintained between 13% and 14%.  The spade angles used were A1 (0°), A2 (15°) and A3 (30°).  Four levels of bite lengths viz. 4, 6, 8 and 10 cmat travel speed of 18.47 cms-1 were selected for the study.  These corresponded to four levels of spading frequencies namely F1 (1.85 cycles s-1), F2 (2.31 cycles s-1), F3 (3.08 cycles s-1) and F4 (4.62 cycles s-1). ...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Farm Machinery and power Engineering spading machine; Spade angle; Spading frequency; Degree of pulverization.
Ano: 2017
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3580

Wear on circular orifice plate of hollow-cone type agrochemical spray nozzles
Provedor de dados: 111
Autores: KUMAR SINGH, AKSHAY; Bhatt, Yogesh Chandra.
An orifice plate of spray nozzles changes pressurized agrochemical liquid spray into the finer droplets in order to accomplish application of pesticide on to the field crops. Application rate of pesticide per unit area (L/ha) is an important pre-defined parameter for a particular crop which is governed by the combined effect of flow rate per unit of time (L/min.) and the time of cover the unit area (hr/ha). The study has revealed the failures of orifices of hollow-cone nozzles, due to wear, to obey the constant rate of discharge of liquid pesticides with the usage of time. Hollow-cone nozzles with different materials of constructions (plastic, stainless steel and ceramic) were tested under the pressure of 3.5, 7.0, and 10.5 kg-cm-2 respectively. Material...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Farm Machinery and Power Engineering circular orifice plate; Material of construction; Flow rate; Liquid spraying pressure.
Ano: 2018
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4535

Development of a support mechanism for the use of motorized oil palm fruit bunch cutter
Provedor de dados: 111
Autores: Aramide, Basiru Philip; Owolarafe, Oseni Kehinde; Adeyemi, Nabeel A.
In this study a support mechanism (SP) for a palm fruit bunch harvester was designed, fabricated and tested on a plantation. This was with a view to adapting the cutter for harvesting tall oil palm trees in Nigeria. The design concept for the support mechanism was conceived as a mast pyramid which simulates an adjustable ladder pivoted on wheels comprising three segments, namely: the wheels which facilitate easy movement within the plantation; the lower segment, which comprises the stands and the upper segment which comprises the chamber (equipped with a platform) in which the operator (the climber) stands. The support mechanism was tested in comparison with the existing rope-and-knife (RK) method. The harvesting parameters used are time to climb up the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Farm Machinery and Processing oil palm  harvesting  motorized-harvester  support-mechanism.
Ano: 2016
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3493

Characterisation of Small Scale Feed Mills in a Developing Country
Provedor de dados: 111
Autores: Adetifa, Babatunde Olusola; Okewole, Oyewole Titilope.
There are many cottage scale animal farms in Nigeria that are sustained by the existence of small scale feed mills. The growth of these small scale feed mills is affected by some problems. A study to investigate some of the technical problems in small scale feed mills was conducted using Ibadan, Oyo State, Nigeria as a case study. Ten feed mills were randomly selected and investigated while thirty workers were assessed. The characteristics of the feed mills were investigated in terms of capacity, number of workers, mill operations and equipment used and the problems were investigated by studying four different areas which include; power source; unit operations/equipment; energy utilization pattern and workplace safety/hygiene. A questionnaire was designed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Agricultural Processing; Feed milling; Management Capacity  Energy use  Grower’s mash  Hygiene  Layer’s mash  Power source  Unit operations.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3012

Production of biodiesel from groundnut (Arachis hypogea, L.) oil
Provedor de dados: 111
Autores: Oniya, Oluwatoyin Oluwole; Bamgboye, A. Isaac.
Biodiesel is an environmental-friendly substitute for fossil fuel.  Research on the production of biodiesel from vegetable oils has concentrated on Jatropha, soybean, palm kernel, sunflower and rapeseed oils with scarce information on groundnut oils.  This study focussed on the production of biodiesel from groundnut oil.  Oil was mechanically extracted from groundnut seeds that were bought from Sabo market in Ogbomoso,  Nigeria.  The extracted oil was trans-esterized with ethanol using potassium hydroxide as catalyst in a two-step trans-esterification process to yield ethyl esters and glycerol.  The fuel properties of groundnut oil and its ethyl ester were determined according to American Society for Testing Materials (ASTM) standard methods and compared...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Energy Groundnut oil  Automotive Gas Oil  Transesterification  Ethyl esters  Biodiesel  Fuel  Diesel engine  Nigeria.
Ano: 2014
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2318

Effect of Moisture Content and Loading Orientation on Mechanical Properties of Bush Mango (Irvingia gabonensis) Nut
Provedor de dados: 111
Autores: AVIARA, NDUBISI A.; Iyilade, Idowu J.; Oyeniyi, Samuel K.; Aremu, Ademola K.
The use of inappropriate equipment to crack bush mango nut and obtain the kernel has adversely affected the efficiency of its processing operations. The manual method, which involves cracking the nut with stone or pestle and mortar, is not only slow and risky, but also wasteful. In order to develop appropriate processing equipment for the nut, knowledge of its mechanical properties is necessary. This study was undertaken to determine some strength properties of the nut at different moisture contents under lateral and longitudinal loading orientations, using Universal Testing Machine (UTM). In the moisture range of 7.52% - 20.6% (d.b) under both lateral and longitudinal loading orientations, results of tests showed that all the strength properties (bioyield...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Post harvest Technology; Crop Processing Mechanical properties; Bush mango nut; Irvingia gabonensis; Moisture content; Loading orientation; Universal Testing Machine (UTM).
Ano: 2019
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5092

Assessment of the CERES-Rice model for rice production in Ibadan, Nigeria
Provedor de dados: 111
Autores: Christopher Oluwakunmi Akinbile; FUTA.
CERES-Rice model was used to simulate growth and yield of a new rice variety in Nigeria with the attention on rates of water application, one major factor that retards crop’s grain yield. The rates were full irrigation (100%ET), medium (75% ET), average (50% ET) and low (25% ET) irrigation intervals. The NEw RIce for AfriCA (acronym for NERICA) 2 variety was grown at the International Institute for Tropical Agriculture (IITA), Ibadan, Nigeria. Experimental agronomic values of parameters such as plant height, root depth, canopy shading, Leaf area index (LAI), biomass and grain yield in relation to water use were obtained and compared with simulated modelled values from CERES and the results were subjected to statistical analysis. The model predicted...
Palavras-chave: Agricultural Engineering; Soil and Water Conservation Engineering Rice; Model; Water; Simulation; Production; Food security.
Ano: 2013
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2405

Modeling energy efficiency during dehydration process of cooked yam
Provedor de dados: 111
Autores: Akinoso, Rahman; Edun, Kolade.
Studies on drying have focused on developing mathematical models and kinetics of drying crops, but literature is sparse on energy and exergy analysis of cooked yam used for instant-pounded yam flour production.  This work presents the effect of drying temperature and size on energy consumption during cooked yam dehydration, a major unit operation in instant-pounded yam production.  Cooked yam with uniform surface area but different thickness (5 mm, 10 mm, 15 mm,    20 mm, 25 mm and 30 mm) were dried in a cabinet dryer at varying temperatures (60oC, 70oC and 80oC) and constant air velocity of 1.5 m s-1.  During the drying process, parameters including inside chamber temperature, outside chamber temperature, ambient temperature, drying time and power output...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Food Engineering; Agricultural Engineering; Post-Harvest Drying  Cooked yam  Energy analysis  Exergy efficiency  Instant-pounded yam flour.
Ano: 2013
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2568

Determination of Force Acting on the Rice Transplanter Finger
Provedor de dados: 111
Autores: Kumar, Uttam; Thomas, E V.
In order to measure the forces acting on a fixed fork type transplanting finger during separation of rice seedlings a laboratory model transplanter was developed. It was equipped with transducers to measure the forces and to measure the speed of rotation of the crank that give motion to the finger. The nursery seed rate was varied from 0.35 to 1.15 kg/m2. Planting velocity varied from 0.29 to 0.55 m/s. Average tangential force on the finger had minimum and maximum magnitudes of 3.68 N and 4.70 N, respectively for 15 mm mat and 3.10 N and 5.32 N, respectively for 20 mm mat. However, one millisecond peak value of the resultant forces had a maximum value of 28.3 N and 29.7 N for 15 mm and 20 mm mats respectively. These values can be used for calculating the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Farm Implements and Equipments Rice Transplanter  Fixed Fork Type Finger  Seedling Mat  Planting Velocity  Seedling Separation Force.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2980

An improved IAR sorghum thresher
Provedor de dados: 111
Autores: Sale, Nura Alhaji; Muhammed, U. S; Dalha, I. B.; Idris, S. I.
Nigeria is the one of the major sorghum producing countries in the world with annual yield over Six million tons, however, threshing and cleaning of sorghum have remain serious problems to farmers due to high drudgery involve in traditional method. This shows that a little mechanization exist in post- harvest operation of such crop and affect the production. To address such problems, IAR sorghum thresher was developed at the Institute for Agricultural Research (IAR) Samaru, Zaria. Complete randomize design was used as the experimental design with three replications. The effect of the independent variable on the dependent variables was determined using ANOVA. The results showed that the moisture content is highly significance on the threshing and cleaning...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Farm power and Machinery development; IAR; Sorghum thresher.
Ano: 2016
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3901

Productivity and quality analysis of selected boreholes in Osun and Kwara States, Nigeria
Provedor de dados: 111
Autores: Kamorudeen Olaniyi Yusuf; University of Ilorin, Ilorin, Nigeria; Abdulkabir Mobolaji Ibrahim; University of Ilorin, Ilorin, Nigeria; John Olutobi Famakinwa; University of Ilorin, Ilorin, Nigeria.
A study was conducted on the productivity and quality analysis of borehole water in Offa and Erin-Ile in Kwara State, and in Ilesa and Osogbo in Osun State, Nigeria.  Productivity of the borehole was carried out by pumping test to determine the discharge from the boreholes sampled.  Data about the boreholes were obtained from Hydrology Department of the Lower Niger River Basin Development Authority Ilorin, Kwara State (LNRBDA) and Rural Water and Environmental Sanitation Agency in Osun State (RUWESA).  Ten boreholes were sampled in Offa out of which seven were working.  Five boreholes in Erin – Ile were sampled out of which four were functional.  21 boreholes were sampled in Ilesa but only thirteen were working and three boreholes in Osogbo but only one...
Palavras-chave: Agricultural Engineering; Borehole; Water quality; Productivity of borehole; Aquifers; Transmissibility.
Ano: 2012
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2141

Development and evaluation of metal rolling machine for small-scale manufacturers
Provedor de dados: 111
Autores: Bello, Segun Raphael.
 The global drive toward intermediate technology and sustainable development motivated the development of sheet metal rolling machines for small-scale artisanal manufacturers.  This paper presents the design, construction and evaluation of a sheet metal rolling machine for small-scale enterprises.  The machine consists of three rollers; a rigid forming roller, a free floating roller and a drive roller arranged triangularly with two handles for shape-rolling.  The rollers were made of galvanized metal pipe, 1,050 mm long, 76 mm diameter, each approximately, 3 mm thickness; a driving shaft 1,220 mm long, 16.6 mm diameter and 4 pieces of mild steel washers to provide support to shaft and also to limit the bending stress on the rollers.  The entire system is...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Wood products.
Ano: 2013
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/1759

Soil water storage and its temporal association with other water-atmospheric variables in a tomato field under different irrigation regimes
Provedor de dados: 111
Autores: Abegunrin, Toyin Peter; Adesina, Adetunji Emmanuel; Awe, Gabriel Oladele; Ojo, Olumiyiwa Idowu.
This study was conducted to evaluate the effect of different irrigation regimes on soil water dynamics and temporal associations with other water-atmospheric variables in a tomato field under different drip irrigation regimes in southwestern Nigeria. The experiment was 3 x 3 randomized complete block design (RCBD) with a split plot arrangement of treatments in three replicates. Irrigation frequencies of applying water every 7, 5 and 3 days designated as F1, F2, and F3, respectively serve as the main plot of the experiment while irrigation depth of 100, 75 and 50% of crop water requirement ( ) designated as D1, D2 and D3 are the sub-plots. During the growing season, soil water storage (SWS) was monitored in soil depths of 0-5, 5-10, 10-20 and 20-30 cm using...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Irrigation Engineering; Soil Science; Soil Physics  Agriculture Soil water status; Classical regression; State-time analysis; Irrigation frequency  irrigation depth.
Ano: 2019
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4726

SOME ENERGY PROPERTIES OF NON-TIMBER FOREST TREE RESIDUES FOR FUEL
Provedor de dados: 111
Autores: Simoyan, Kayode Joshua; Egbu, Chibuzor P.; Fasina, Oladiran O.
A study was undertaken to determine some energy properties of three non-timber forest tree residues: Bush Mango (Irvingia), Achi (Brachystegia eurycoma) and Para Rubber (Hevea brasiliensis) shells for fuel. The ultimate properties (Carbon, Hydrogen, Oxygen, Sulphur and Nitrogen contents) of the ground shells were determined. The proximate properties determined were volatile matter, ash and fixed Carbon contents, and calorific values. The shells for the three samples were reduced with a hammer mill to 1.00 mm, 2.00 mm and 4.75 mm particle sizes. The mean of the energy properties of the samples were compared using the New Duncan’s Multiple Range Test to determine if there were significant differences at (P ≤ 0.05). Results obtained showed that Irvingia...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Bioenergy Biomass; Biomass fuel; Calorific value; Residues and energy properties.
Ano: 2018
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4075

Effect of different tillage and residue management practices on growth and yield of corn cultivation in Thailand
Provedor de dados: 111
Autores: Sornpoon, Wlaiwan; Jayasuriya, Hemantha P. W.
The tillage and residue management during soil bed preparation need to be in appropriate manner for sustainable farming practice.  The effects of tillage and residue management methods on corn cropping were studied on loamy soil in Bangrakum district, Phitsanulok Province, Thailand.  The effects of five commonly used tillage methods: subsoiler tillage (ST), three methods of conventional tillage (CT1, CT2 and CT3), no-tillage (NT), as main factors and two corn residue management methods; burned (R1) and unburned (R2), as sub-factors were studied in a randomized strip plot configuration.  Tillage treatment showed significant effect on physical and chemical soil properties, plant growth and development, grain yield, total aboveground biomass and most...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Tillage optimization Tillage; No-tillage; Emergence; Compaction; Subsoiler; Biomass.
Ano: 2013
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2235

Effectiveness of Teflon as roller material for a prototype rice processing machine
Provedor de dados: 111
Autores: Adisa, Alex Folami; Eberendu, Obioha N; Aderinlewo, Adewole O; Kuye, Ibiyemi Sidikat.
ABSTRACT The main aim of this research was to assess the effectiveness of using Teflon material in search of locally available quality/effective roller material for a prototype rice roller dehusking /destoning machine developed in Nigeria making use of four locally cultivated rice varieties. This required determination of the effectiveness of Teflon material as roller for the developed prototype dehusker/destoner.  Microsoft Excel 2007 and Minitab 16 were used to analyze the ANOVA of two main factors (paddy varieties and moisture content). The dehusker cleaning efficiency was found to be 94.73 %, coefficient of dehusking was 0.63, coefficient of wholeness was 0.85, dehusking efficiency was 50.54 %, dehusking capacity was 10.56 kg/h. Also the effect of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Farm power and Machinery : Development  perfection  rice   dehusker/destoner.
Ano: 2016
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3416

Internal quality assessment of tomato fruits using image color analysis
Provedor de dados: 111
Autores: Saad, Abdelgawad Mohammed; Ibrahim, Ayman; El-Bialee, Nazeer.
Nondestructive optical methods based on image analysis have been used for determining quality of tomato fruit. It is rapid and requires less sample preparation. A samples of fresh tomatoes were picked at different maturity stages, and determining chromaticity values (L*,a*,b*,a*/b*,h˚and ΔE) by image analysis and colorimeter. Total soluble solids (TSS), were measured by refractometer, lycopene extracting and expressed as mg/kg fresh tomato (FW). Results indicated that, during ripening both L*, b*, h˚, and ΔE tendency to decline, opposite tendency was determined with a*, a*/b* ratio, TSS and lycopene content. Chromaticity values have an important impact in internal quality parameters. Where, avg. of TSS, entire class and lycopene content had a positive...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Postharvest Engineering tomato; Image color analysis; Chromaticity values; Internal quality; TSS; Lycopene content.
Ano: 2016
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3504

Prevention aspects for avoiding rollover incidents together for tractors, self-propelled harvesting and material handling machinery
Provedor de dados: 111
Autores: Mayrhofer, Hannes; Quendler, Elisabeth; Boxberger, Josef.
Abstract: Tractors, self-propelled harvesting and material handling machines are the most commonly used self-propelled machineries in Austrian agriculture that have similarities in main rollover incident causes.  The aim of this study was to present sustainable prevention measures against rollovers together for tractors, self-propelled harvesting and material handling machinery based on a new machine evaluation, manufacturer surveys and a literature research.  New machines were investigated concerning their compliance with legal regulations and concerning their current rollover prevention equipment.  By interviewing manufacturers of tractors, self-propelled harvesting machinery and material handling machinery, the challenges with implementing safety...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Accident Prevention Agricultural machinery; Surveys; Machine evaluation; Incident; Injuries; Prevention.
Ano: 2014
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2820

Influence of soaking variables on rice (Oryza sativa) de-husking quality
Provedor de dados: 111
Autores: Abdullahi, Hussein Itopa; Salihu, Onimisi Abdulraheem; Ali, Mohammed Abdulkarim.
This work studied the influence of soaking variables on rice de-husking quality. The variables considered were temperature, time and variety. Three different levels of temperatures were chosen. The three different levels of temperatures were 50, 70 and 90˚C respectively. Two different levels of time were chosen. The time chosen were 6 and 12 hours respectively. Jemila and Sipi were the two varieties of rice used for this study. The variables to be studied were completely randomized and each combination of the experiment was replicated thrice. In all, there were 36 treatments (i.e. 3 temperatures×2 times× 2 varieties× 3 replications). The results obtained from the experiment indicates that broken percentage decreases with increase in soaking temperature...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Postharvest Engineering Saoking variable; Rice de-husking; Rice quality; Soaking time; Soaking temperature.
Ano: 2019
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5318

Anthropometric survey of farm workers of Ladakh region of India and its application in equipment design
Provedor de dados: 111
Autores: DIXIT, JAGVIR; Namgial, Deldan; Sharma, Sushil; Lohan, Shiv Kumar; Kumar, Dinesh.
Abstract: The environment and resultant discomfort has severe impact on overall working efficiency of human and machine while using farm tools and machinery in hills.  The Ladakh region of Jammu and Kashmir State of India is predominantly hilly.  Anthropometric data of agricultural workers is very essential for the safe and efficient design of farm machinery.  In the present studies, an anthropometric survey was carried out for agricultural workers of Ladakh region, wherein 90 male and female agricultural workers were selected and 79 body dimensions were precisely measured and recorded from each subject, thereafter analysed statistically.  For making the data comprehensive and more useful, a set of 23 body dimensions, which are having direct implications...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Farm Power Machinery Anthropometric survey  body dimensions  agricultural workers  tool design.
Ano: 2014
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2794

Assessment of cost-benefit parameters of conservation agricultural machinery for custom hires entrepreneurship in the southern region of Bangladesh
Provedor de dados: 111
Autores: Mottalib, Mohammad Abdul; Hossain, Mohammed Ayub; Hossain, Mohammad Israil; Amin, Mohammad Nurul; Alam, Mohammad Monjurul; Saha, Chayan Kumer.
This paper presents, assessment of cost-benefit parameters of conservation agricultural machinery for custom hires entrepreneurship development in southern region of Bangladesh. The key principles of the study were to determine the economic parameters for developing a CA (conservation agriculture) machine custom hire entrepreneurship and effective schedules for CA machine operation. Field experiments were conducted at Dumuria, Wazirpur, Subarnachar and Kolapara Upazila (Sub-district) of Khulna, Barishal, Noakhali and Patuakhali districts, respectively in the southern region of Bangladesh in the years 2017 and 2018. Two villages in each Upazila were selected for this study. Primary data was collected from these field experiments. Secondary data from various...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Farm Machinery Benefit cost ratio; CA machine; Entrepreneur; Operating cost; Payback period.
Ano: 2019
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5454

Enhancing the efficiency of evaporative cooling pads for livestock barns and greenhouses by moisture adsorption
Provedor de dados: 111
Autores: Samer, Mohamed.
High levels of relative humidity negatively affect the efficiency of the evaporative cooling pads installed in livestock barns and greenhouses. Consequently, the productivity decreases causing economic losses. Therefore, this project aims at prototyping innovative dehumidifying/desiccant segments to be installed on the conventional cooling pads enabling them to provide suitable microclimate conditions, especially temperature and relative humidity, for animals and plants. The hypothesis is that desiccant segments adsorb air moisture before introducing the air into the pads; consequently, the treated air is then able to absorb more moisture from the cooling pads, i.e. the cooling pads evaporate more water in the treated air, where water evaporation requires...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Farm Buildings and Construction cooling pads; Livestock housing; Heat stress; Indoor air quality; Greenhouses.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3450

Design, construction and evaluation of an evaporative cooler for the storage of sweet potatoes in the north Ghana
Provedor de dados: 111
Autores: Seweh, Emmanuel Amomba; Darko, Joseph Ofei; Addo, Ahmad; Asagadunga, Paul Akidiwe; Achibase, Sebastian.
A 14.4 × 86.0 × 70.0 cm mud evaporative cooler was designed and constructed for the storage of sweet potato roots to evaluate its performance in storing orange fleshed sweet potato variety (Apomuden) roots.  The investigation lasted for 14 weeks, from November 2014 to February, 2015.  The dry bulb (Tdb) and wet bulb temperatures (Twb) for the ambient storage ranged between 27.600C to 26.900C and 22.500C to 20.100C respectively with their corresponding RH of 64.00%, 77.00% respectively, while Tdb and Twb within the cooler ranged between 25.940C to 24.860C and 21.940C to 20.610C with corresponding R.H of 89.00% to 92.00% respectively.  The efficiency of the constructed evaporative cooler was 87.17%. From an initial weight of 2000 g, roots weight decreased to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Post-harvest Technology evaporative cooler; Storage weight loss; Wet bulb temperature; Dry bulb temperature; Moisture content; Energy content.
Ano: 2016
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3716

A comparative study on drying of basil leaves
Provedor de dados: 111
Autores: Parmar, Mansukhlal Ramjibhai; Kumpavat, Mahendrasinh T.; Doshi, Jayesh Sevantilal; Kapdi, Shyamsundar S.
Basil is a popular aromatic and annual herb growing in many regions of the world.  Immediately after its harvesting, the highly perishable raw material, i.e. leaves, have to be preserved against deterioration and spoilage.  More often, during peak period, most of the crop is lost/wasted due to lack of proper post-harvest processing techniques.  Drying is by far the most widely used treatment, which needs to be performed very carefully and preciously so as to preserve the aroma and color of the leaves.  Various drying treatments and experimental methods viz., solar drying, tray drying, vacuum drying and fluidized bed drying were carried out at the temperatures of45°C,55°Cand65°Cto find and suggest the optimum drying condition for acquiring quality dried...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Post Harvest Process and Food Engineering drying; Drying characteristics; Basil leaves; Solar drying; Tray drying; Vacuum drying and fluidized bed drying.
Ano: 2017
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3867

Disinfection of a farmstead roof harvested rainwater for potable purposes using an automated solar photocatalytic reactor.
Provedor de dados: 111
Autores: Nwoke, Okala Okala; Ezema, Ifeanyichukwu Fabian; Chigor, Vincent Nnamdigadi; Anoliefo, Edward Chukwud; Mbajiorgu, Constantine Crowner.
Access to safe and reliable water supply is a challenge in many parts of the developing world. The use of roof harvested rainwater for domestic and potable purposes is common in households and farmsteads in the rainforest and some parts of savannah ecological zones of  Nigeria in spite of  the health risk associated with ingestion of water from an unimproved source such as untreated roof harvested rainwater. Solar photocatalysis has been proven to be effective in water treatment devoid of the short comings of high fuel cost and formation of carcinogens associated with conventional households water disinfection methods such as boiling and the use of chemicals.  In this study, an automated photocatalytic batch reactor which uses solar radiation as its photon...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Water Engineering; Water Treatment. Solar radiation dose; E. coli; Water disinfection; TiO2; Photocatalytic reactor.
Ano: 2018
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4893

Agriculture Land Development Using Shell Husk as Recycle Aggregate
Provedor de dados: 111
Autores: Rachmawati, Siti Hanggita; Hossain, Zakaria; Shiau, Jim.
Effective ground improvement technique is normally needed in improving agriculture land condition. This is to accommodate agriculture activities which have operational loadings due to tractor or rice transplanter. The use of soil - shell husk - cement combination is considered as one of the possible ground improvement techniques and it is environmental friendly. In this study, several combinations of waste shell husk and cement are investigated for its effect on soil shear strength and bearing capacity. Specimens containing 10% and 20% of waste shell husk along with 2%, 4%, 6% cement were tested using California Bearing Ratio (CBR), Direct Shear Test and Unconfined Compressive Strength (UCS). Test results show that the addition of shell husk and cement...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Sub discipline (farm structural) waste  shell husk  ground improvement; CBR; Direct shear test; UCS.
Ano: 2018
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4875

Measuring Picking Force of Sunflower Seeds and Prediction of Reasonable Range of Air-Jet Parameters to Remove Sunflower Seeds from the Head
Provedor de dados: 111
Autores: Mirzabe, Amir Hossein; Chegini, Gholam Reza.
To design a new machine which removes the seeds of sunflowers based on air-jet impingement, picking force of five varieties of sunflower seeds was measured. Effects of the loading rate, sunflower head’s diameter, the location of the seeds on the head and the number of the days after harvesting on picking force of seeds were studied. The tests were conducted 1, 2, 3 and 4 days after harvesting. Also theoretical air-jet impingement forces for four levels of nozzle diameter, four levels of jet temperature and eight levels of pressure of reservoir to which the jet were calculated. With the increase of the sunflower heads’ diameter and the loading rate from 50 to 150 g min-1, the values of the picking force increased. With the increase of the distance between...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sunflower Thresher; Seed Picking Force; Impingement Jet Method; Jet Force; Agricultural Engineering; Helianthus Annuus L.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3381

Development and evaluation of metal rolling machine for small-scale manufacturers
Provedor de dados: 111
Autores: Segun Raphael Bello; Department of Agricultural &amp; Bio-Environmental Engineering Technology Federal College of Agriculture, Ishiagu, 480001, Nigeria.
 The global drive toward intermediate technology and sustainable development motivated the development of sheet metal rolling machines for small-scale artisanal manufacturers.  This paper presents the design, construction and evaluation of a sheet metal rolling machine for small-scale enterprises.  The machine consists of three rollers; a rigid forming roller, a free floating roller and a drive roller arranged triangularly with two handles for shape-rolling.  The rollers were made of galvanized metal pipe, 1,050 mm long, 76 mm diameter, each approximately, 3 mm thickness; a driving shaft 1,220 mm long, 16.6 mm diameter and 4 pieces of mild steel washers to provide support to shaft and also to limit the bending stress on the rollers.  The entire system is...
Palavras-chave: Agricultural Engineering; Wood products.
Ano: 2013
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/1759

Performance evaluation of hybrid thin layer solar tunnel-windmill dryer in the drying of brined and non-brined Tafi (Siganussutor) Fish
Provedor de dados: 111
Autores: Odote, Peter; Kituu, Gareth M.; Obiero, Maurice; Ruwa, R; Honell, N H.
Studies were carried out to evaluate the performance of hybrid solar tunnel-windmill dryer in thin layer drying of brined and non-brined Tafi (Siganus spp.) fish. The fish were, eviscerated, and split into pieces of approximately 6cm by 4cm by 5mm was soaked in brine at 0 and 5% concentrations. The samples were dried in the dryer for 44 hours. The moisture content of the drying fish was evaluated by the AOAC oven drying procedure. In addition, analysis was carried out to establish the best thin layer drying model that describes the drying of fish in the hybrid wind-solar tunnel dryer. The moisture content of the drying fish was found to reduce linearly from 4.2 and 3.9kg/kg (db), respectively for brined and non-brined fish to 0.8kg/kg (db).  A two way...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Food Science and Technology Fish; Hybrid wind-solar tunnel dryer; Diffusivity; Modelling; Moisture content; Drying rate constant.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3093

Modelling of longwave radiation exchange at greenhouse surfaces under all-sky conditions
Provedor de dados: 111
Autores: Ronoh, Erick Kiplangat; Rath, Thomas.
Accurate and detailed longwave radiation heat transfer models are necessary in modern protected cultivation especially for greenhouses. For this reason, the study focuses on modelling the longwave radiation exchange between glass-covered greenhouse surfaces and the sky taking into consideration representative test conditions. Apart from the surface design and the thermal properties of the cover, the key meteorological parameters influencing longwave radiation models include air temperature, cloudiness and relative humidity. To model the downwelling longwave radiation under all-sky conditions, an effective atmospheric emissivity is required, which depends on the cloudiness of the sky. To achieve this, 10 typical clear-sky atmospheric emissivity equations...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Agricultural Structures  Greenhouse Technology modelling  radiation exchange  greenhouse surface  sky.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3419

Estimation of head rice yield by measuring the bending strength of kernels after drying by different drying methods
Provedor de dados: 111
Autores: Nassiri, Seyed Mehdi; Etesami, Seyed Mohammad.
In this study, two local rough rice cultivars (long and medium grain) were dried by three different drying methods including indirect and mixed-mode active solar dryers, and continuous dryer at three temperature levels of 35°C, 45°C and 55°C.  Bending strength of brown rice kernels, percentage of fissured kernels and head rice yield were measured and evaluated.  No significant difference between bending strength of dried rough rice kernels by indirect and mixed-mode active solar drying methods was observed.  Drying by continuous dryer improved the mechanical strength of kernels by providing tempering periods.  Medium size kernels depicted more strength than longer ones.  Strong relationships were established between the bending strength of the brown rice...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Biosystems Engineering; Food Science and Technology bending strength; Drying; Head rice yield; Fissured kernels; Rough rice.
Ano: 2016
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3185

Physical properties of soybean cultivated in NEH region of India
Provedor de dados: 111
Autores: Singh, Hijam Jiten; De, Dipankar; Sahoo, P. K.
This study was conducted to investigate physical properties of soybean cultivated in NEH region of India.  Major, minor and intermediate mean diameters of soybean seeds were 8.88±0.55 mm, 4.68±0.32 mm and 6.46±0.36 mm, respectively.  Geometric mean diameter was 6.45±0.35 mm. Mean roundness of the seeds was 0.66±0.02, while mean sphericity of the seeds in their natural rest position was 0.73±0.02.  Bulk density, true density, porosity, thousand seeds weight and angle of repose were 749.50±1.59 kg/m3, 1171.80±115.02 kg/m3, 34.62±9.00 %, and 177.55±3.04 g and 25.82±1.88 º, respectively.  The coefficient of static friction over aluminum, mild steel, and plywood surfaces were 0.46±0.03, 0.45±0.03 and 0.47±0.02, respectively. Statistical analysis indicated that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Farm Power and Equipment soybean  physical properties  NEH region  India.
Ano: 2014
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2932

Effect of  moisture content on physical properties of bush mango (Irvingia gabonensis) nut
Provedor de dados: 111
Autores: AVIARA, NDUBISI A.; iyilade, Idowu A.; Aremu, Ademola K; Oyeniyi, Samuel K.
The effect of moisture content on some physical properties of Bush Mango (Irvingia gabonensis) nut was studied at four moisture levels in the range of 7.52% - 20.6% (d.b). Results showed that the length, width and thickness of nut increased from 37.84 to 50.16 mm, 30.23 to 42.62 mm and 19.25 to 28.15 mm respectively, as moisture content increased in the above range. Nut sphericity decreased from 76.2% to 69.5% as moisture content increased. One thousand seed weight, bulk density, true density and angle of repose increased from 6.634 to 9.158 kg, 756.7 to 1095 kgm-3, 984.4 to 1095kgm-3 and 25.3 to 38.9o respectively, in the above moisture range. Static coefficient of friction on different surfaces increased in the order of fiber glass (0.378 to 0.394),...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Post harvest Technology; Crop Processing Moisture content; Dika nut; Irvingia gabonensis; Size; Shape; Gravimetric; Frictional properties.
Ano: 2019
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5089

Mechanization of dairy farming in Bangladesh
Provedor de dados: 111
Autores: Das, Ashish Kumar; Saha, Chayan Kumer; Alam, Md. Monjurul.
The mechanization status of dairy farming in Bangladesh is not mentionable. In every steps of the farming operation, indigenous systems have been practiced in most of the farms. This study has been conducted to assess mechanization status in dairy farming. The selected areas of this study were Bangladesh Agricultural University (BAU) dairy farm, Mymensingh, Rural Development Academy (RDA) dairy farm, Bogra and four small, four medium and two large farms in Sirajganj district. Most mechanized RDA dairy farm and rest of the non-mechanized farms were selected for this study. The field survey was conducted by interviewing identified sample respondents with pre-determined interview schedules to cover all selected locations. Most of the farms have no specific...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Farm Power and Machinery mechanization  dairy farm  waste disposal  ventilation  manger  gutter.
Ano: 2016
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3895

Development and dynamic simulation of single screw extruder for the production of cassava and yam starch nanocomposites
Provedor de dados: 111
Autores: Fadeyibi, Adeshina; Osunde, Zinash Delebo; Gbabo, Agidi; Egwim, Evans Chidi.
A research was conducted to develop a single screw extruder from a locally available material for the mixing and homogenization of bulk solids, such as the composites of cassava and yam starch-glycerol with nanoparticles. The design was made by computing the hopper outlet size, shaft diameter, screw geometry, barrel volume and the capacity of the conveyor, empirically. The stresses in the conical section of the hopper were also evaluated to assess its load requirement, thus avoiding any problem associated with the flow of materials through the hopper opening. The extruder was dynamically simulated to assess its throughput at the feeding, compression and metering zones. This was done by investigating the dynamic effect of the time of operation, with respect...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Crop Processing and Storage Development; Dynamic simulation; Single screw extruder; Cassava Starch; Nanocomposite.
Ano: 2016
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3802

Design steps of narrow tillage tools for draught reduction and increased soil disruption – a review
Provedor de dados: 111
Autores: Odey, Simon Ogbeche.
Design steps of narrow tillage tools for draught reduction and increased soil disruption was reviewed. Narrow tillage tools are the main components of conservation tillage and soil compaction alleviation equipment. Literature regarding dynamic behaviour and step-by-step design of narrow tillage tools is scarce. A better understanding of soil dynamic behaviour and designing steps will help in the design of new tool shapes which will reduce tool draught, energy demand and increased soil disruption over a wide speed range. At the same time, narrow tools disturb less soil, ideally only the minimum necessary to establish a crop. Narrow tillage tools such as subsoilers have gain much ground in their application for alleviating soil compaction; and are attracting...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Farm Power and Machinery; Processing and Storage Engineering design; Draughts; Soil disruption; Subsoiler shanks.
Ano: 2016
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3511

Operational performance of crop residue cutting discs in the no-tillage system
Provedor de dados: 111
Autores: Becker, Rafael Sobroza; Alonço, Airton dos Santos; Francetto, Tiago Rodrigo; Carpes, Dauto Pivetta; Zart, Bruno Christiano Correa Ruiz; Moreira, Antonio Robson.
The objective of this study was to evaluate the operating performance of crop residue cutting discs with distinct cutting edges in the no-tillage system, in relation to the travel speed of the tractor/tool holder set. The experiment was carried out in an experimental area, the soil classified as Paleudalf. The experiment consisted in a factorial arrangement of 4x4, totaling 16 combinations of treatments and three replications, composed by the interaction of the factors: crop residue cutting discs (plain flat disc, wavy disc, rippled disc, and helical wavy disc coulter) and travel speed (1.11; 1.67; 2.22 and 2.78 m s-1). It was used a mobile tool holder structure for the coupling of the active organs, which was pulled by a farm tractor. For the collection...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Field trial; Agricultural machinery; Machine-soil ratio; Planter; Agricultural Engineering.
Ano: 2019
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5116

Relatiohship between Reference Evapotranspiration and some Climatic Parameters for Umudike, Nigeria.
Provedor de dados: 111
Autores: Abarikwu, Okezie Ibeji.
Reference evapotranspiration, ETo, is important as it is used to determine the evaporative demand of the atmosphere. there is a need for continued studies to determine the reference evepotranspiration of different locations as well as its relationship with various climatic parameters for the prediction of water demands for human and ecological reasons. A study undertaken to determine the relationship between ETo, obtained using the Food and Agriculture Organization of United Nations, Penman-Monteith (FAO-56 PM) method, and some climatic data in Umudike, Nigerian environment are presented. The climatic parameters considered are solar radiation, sunshine hours and wind speed. The interactions of climatic parameters in the input variables of the ETo model,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Soil and Water Reference Evapotranspiration  Climate  Solar Radiation  Sunshine Hours  Wind Speed.
Ano: 2019
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5074

Design Modification of Conventional Wheat Straw Chopper
Provedor de dados: 111
Autores: Ghafoor, Abdul.
Agriculture has straight and indirect contribution to boost the economy of Pakistan. Wheat and paddy are among the major rotational crops of Pakistan. The straw management in combine harvested in wheat fields is a major problem. In the past the residual wheat straw in convectional harvesting was burnt in the field which resulted losses of 80% of Nitrogen, 25% P, 21% K and 4-60% S. To overcome this problem, locally available wheat straw chopper is used for cutting and collecting the wheat straw left behind the combine harvesters. These locally developed wheat straw choppers are heavy in weight having lower machine efficiency. A wheat straw chopper has been modified using locally available materials making it light weight and more efficient. The performance...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Farm Machinery and Power Wheat variety  wheat straw chopper  straw yield  field efficiency.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3031

Comparative evaluation of the performance of motorized and pole and Knife oil palm fruit bunch harvester
Provedor de dados: 111
Autores: Aramide, Basiru Philip; Owolarafe, Oseni Kehinde; Adeyemi, Nabeel A.
In this study the performance of a motorized palm fruit bunch harvester (MBH) was evaluated in comparison with the bamboo-pole-and-knife harvester (BPK). The MBH was first tested on Nigerian plantations for the palm trees it could reach. The average time taken to harvest a bunch and the time taken per hectare of plantation were determined. The best orientation and the cutting angle for the harvester were also determined. The exact height which the harvester could reach was also determined on the plantations. The harvester was later used in comparison with (BPK) method on palms of moderate height and the average time of harvest per bunch, field capacity, as well as cost of operation was determined for the two methods. Time study (TS) of the two methods was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Farm Machenery and Processing oil palm  harvesting; Motorized-harvester; ; Pole-and-knife; Efficiency.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3347

Effects of Different Cooling Systems on Heat Stress and Behaviour of Dairy Cows
Provedor de dados: 111
Autores: D'Emilio, Alessandro; Cascone, Giovanni; Lanteri, Paolo; Porto, Simona M.C.
This paper shows the results of a research study aimed at investigating the effects of a sprinkler system coupled with forced ventilation on the heat stress and the behaviour of dairy cows bred in a free stall barn without paddock.To this aim, an experiment was carried out inside a free-stall dairy house equipped with two different cooling systems: a fogging system associated with forced ventilation in the resting area and a sprinkler system associated with forced ventilation in the feeding alley. The trial regarded two adjacent pens and the experimental protocol required that the treatment group was housed in one pen where the two cooling systems were always activated following an established timetable, whereas the control group was housed in the adjacent...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering.
Ano: 2018
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4784

ASSESMENT OF PALM KERNEL SHELL AS A COMPOSITE AGGREGATE IN CONCRETE
Provedor de dados: 111
Autores: Oti, Okechukwu Peter; Nwaigwe, Kevin Nnanye; Okereke, Ngozi A. A.
This  manuscript  presents  a report on  the  physical properties of palm kernel shell used  here  as a coarse aggregate  and  their  effect  on the strength properties of palm kernel shell concrete.Laboratory research was carried out to observe the effects of replacing crushed granite with palm kernel shell on the compressive strength and density of palm kernel shell concrete. Mix design of 1:2:4 and a water-cement ratio of 0.6 were used to produce concrete specimen cubes of size 150mm3.A total of 60 cubes were made and wholly submerged in water to cure for 28days at intervals of 7days i.e. 7, 14, 21 and 28 days after which their densities and compressive strengths were determined. Granite was replaced with palm kernel shell in the mix at 25% interval...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Construction Palm kernel shells; Coarse aggregate; Curing; Physical properties; Compressive strength.
Ano: 2017
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4036

Performance Evaluation of a Hand pump with Provision of a Sealed Secondary Water Sump
Provedor de dados: 111
Autores: Sarkar, Amaresh; Jha, Madan Kumar.
Nowadays, a large number of water lifting devices and pumps are available for lifting water or other liquids from lower elevation to higher elevation. However, none of these hand pumps use a secondary water sump or any other such kind of device which increases efficiency of commonly used hand pumps. Also, measurement of operating forces for the performance evaluation of hand pumps is often missing. In this study, a commonly used hand pump was fitted with a 54-liter capacity sealed secondary water sump. The secondary water sump is again linked with the shallow well water or aquifer water. It was estimated that the provision of secondary water sump fitted with a hand pump results in significant reduction in the input power. The performance on a hand pump...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Groundwater lifting system Hand pump; Secondary water sump; Pump efficiency.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3049

Effect of two-axle and three-axle sugarbeet tanker harvester on selected soil-physical properties in dry and wet soil conditions
Provedor de dados: 111
Autores: Moitzi, Gerhard; Amon, Stefan; Klik, Andreas; Schwen, Andreas.
The effects of two-axle and three-axle sugarbeet harvester under dry (gravimetric soil water content 20%) and wet (gravimentric soil water content 30%) soil conditions on bulk density, soil penetration resistance and saturated hydraulic conductivity were determined in a long-term non-ploughed field with a silty loam soil in the Pannonian region of Austria. The tyre-inflation pressure of the sugarbeet harvester was set to 140 kPa in the front axle and 190 kPa in the middle and rear axles. The total weight of the three-axle harvester was distributed equally with about 20 Mg each axle. Two-axle harvester distributed the total weight of 49.1 Mg to the rear axle with 27.3 Mg and to the front axle with 21.8 Mg.The differences of bulk density (10-15 cm, 25-30 cm,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Soil Science sugarbeet tanker harvester; Soil moisture conditions; Bulk density; Soil penetration resistance; Saturated hydraulic conductivity.
Ano: 2019
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5083

APPLE IDENTIFICATION IN FIELD ENVIRONMENT WITH OVER THE ROW  MACHINE VISION SYSTEM
Provedor de dados: 111
Autores: Silwal, Abhisesh; Gongal, Aleana; Karkee, Manoj.
Accurate detection and identification of fruits is critically important for the success of developing automated apple harvesting system. Research has been conducted to identify apples in orchard environment with reasonable accuracy when apples are clearly visible or partially occluded. However, only limited work has been carried out to identify fruit in clusters, which is critically important as fruit clusters are common in field conditions. This work focused on accurately identifying partially visible apples and apples in clusters using a machine vision system. An over the row platform with tunnel structure and artificial lighting was used to increase uniformity in imaging environment. Iterative Circular Hough Transform (CHT) was used to detect clearly...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Mechanization and Automation apple identification; Clustering; Circular Hough Transform; Blob analysis.
Ano: 2014
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3006

Fracture Resistance of Kola Nut (Cola nitida)
Provedor de dados: 111
Autores: Owolarafe, Oseni Kehinde; Kareem, Ibrahim; Ajayi, Omolayo Ademola.
Fracture Resistance of Kola Nut (Cola nitida) AbstractIn order to design appropriate processing machineries, the knowledge of the force and deformation curve of agricultural materials is very important. In this research, fracture resistance of kolanut (cola nitida) was measured in terms of the rupture force, compressive stress, modulus of elasticity and energy absorbed. Kolanuts were quasi – statically loaded in horizontal and vertical orientations with moisture content at four levels (47.59 -61.41%) and loading rate of 5mm/min. The result showed that the compressive load decreased from 458.95 to 334.41 N and 605.46 to 228.10 N, compressive stress decreased from 0.40 to 0.30 MPa and 0.52 to 0.20 MPa and energy absorbed decreased from 3.46 to 1.81 J and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Postharvest Engineering; Properties of Agricultural materials kolanut; Moisture-content; Loading- orientation; Fracture- resistance.
Ano: 2019
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4895

Influence of tyres characteristics and travelling speed on ride vibrations of a modern medium powered tractor Part II, Evaluation of the Health Risk
Provedor de dados: 111
Autores: Servadio, Pieranna; Belfiore, Nicola Pio.
In this paper, according to ISO 2631/1, 1997, the influence of the mechanical vibrations on human health is evaluated and assessed with four methods: the health guidance caution zones (HGCZ), the estimated vibration dose value (eVDV), the fourth power vibration dose value (VDV), a combination of various methods presented in literature.  The normative refers to the HGCZ, which involves the average RMS vibration emission level and its exposure time during a given working day.  Values of crest factor for the operator seat showed that Z-axis was the more solicited, even if all the crest factor values are below 9.  Results of mechanical vibration in respect of comfort and health, according with the method of the HGCZ, showed that only case B, at higher forward...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Tractors; Vibrations; Ergonimics whole body vibration; Tractor; Comfort; Health risk; Tyres.
Ano: 2013
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2544

Agricultural Engineering Profession; The Perspective of Employers of Labour in Ilorin, Nigeria
Provedor de dados: 111
Autores: Oyebode, Oyetayo Olukorede; Ogunlela, Ayodele Olarewaju.
An appraisal was carried out on the level of awareness of the Agricultural Engineering profession by employers of labour in Ilorin, Nigeria, to evaluate who they (employers of labour) think an Agricultural Engineer is, how relevant they think he is to their organizations and how well they have been able to make use of his (Agricultural Engineer’s) expertise in their respective organizations. This was done using structured questionnaires and personal communication. The questionnaires were distributed to the target groups and persons (these include Research Institutes, Production and Manufacturing Industries, Government Ministries, Agencies and Parastatals). The results showed that 79.8% of the respondents were of the opinion that Agricultural Engineers can...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Profession; Employers of Labour; Ilorin.
Ano: 2021
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5362

Prioritization of watersheds using multi-criteria evaluation through fuzzy analytical hierarchy process
Provedor de dados: 111
Autores: Prajakta Aher; Research Scholar; J. Adinarayana; Associate Professor; S. D. Gorantiwar; Professor.
Conservation of available natural resources through demarcation of potential zones at micro level are primary necessitate for sustainable development, particularly in the fragile semi-arid tropics.  Delineation of potential zones for implementation of conservation measures above the entire watershed at similar occurrence is inaccessible as well as uneconomical; consequently it is a prerequisite to apply viable technique for prioritization of sub-watersheds (SWDs).  Keeping this in view, the present research attempted to study various morphological characteristics and to implement Geographical Information System (GIS) and Multi Criteria Decision Making (MCDM) through Fuzzy Analytical Hierarchy Process (FAHP) techniques for identification of critical...
Palavras-chave: Agricultural Engineering; Land and Water Engineering Fuzzy Analytical Hierarchy Process  Geographic Information System  Multiple Criteria Decision Making  Watershed prioritization  Conservation management.
Ano: 2013
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2282

Influence of tyres characteristics and travelling speed on ride vibrations of a modern medium powered tractor Part I: Analysis of the driving seat vibration
Provedor de dados: 111
Autores: Servadio, Pieranna; Belfiore, Nicola Pio.
In the present investigation a contribution is offered in order to improve the knowledge of the influence of both speed and tyre type on a medium power tractor vibrations.  The vibrations transmitted from the ground to the driver’s seat of a ballasted wheeled tractor of medium power, equipped with a front suspension axle and a suspended cab, have been measured and analyzed.  Two different tyres, namely, types A and B, at two different forward speeds, 11.1 and 13.9 m s-1, have been experimentally tested, during the simulation of the front agricultural implements transportation on a rectilinear plane tract of a conglomerate bituminous closed track.  This work has been done by applying standards recommended by ISO 2631/1, 1997.  Results were obtained on the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Ergonomics tractors; High speed; Whole body vibrations; Tyres.
Ano: 2013
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2543

Fuel consumption of some tractor models for ploughing operations in the sandy-loam soil of Nigeria at various speeds  and ploughing depths
Provedor de dados: 111
Autores: Adewoyin, Adewale Olaniyi; Ajav, Emmanuel Atoo.
Tractors acquired in Oyo State-Nigeria are primarily utilized for ploughing operations which represents the most costly single item in the budget of an arable farmer.  Tractor fuel consumption constitutes a significant parameter that affects tractors performances for ploughing operations.  The effect of ploughing speed and depth on tractors fuel consumption was therefore examined in a bid to establish their optimum operating conditions.  The soil characteristics of the study site were determined using laboratory tests.  Ploughing operations, using ASABE standard D497.5, were carried out on 100×500 m research farmland using Massey Ferguson (MF 435, 100 hp), Fiat (F130D, 100 hp) and Steyr(CVT170, 100 hp) tractors that were purchased in 2009.  Field...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Farm Power and Machinery Tractor performance; Soil types; Ploughing depth; Ploughing speed; Fuel consumption.
Ano: 2013
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2466

Comparison of five commonly used thin-layer moisture transfer models in fitting the re-wetting data of barley
Provedor de dados: 111
Autores: Basunia, Mohammad Ali.
Five commonly cited thin-layer rewetting models, including Page, Diffusion, Approximate form of diffusion, Exponential, and Polynomial were compared for their abilities to the fit the experimental re-wetting data of barley based on the root mean square error (RMSE) and mean relative error (MRE) of estimate of the measured and simulated moisture contents.  The comparison shows the Page model is the most suitable model (average, RMSE = 0.176% d.b. and MRE = 0.713% d.b.) followed by the Diffusion model (average RMSE = 0.199% d.b. and MRE = 0.862% d.b) to fit the re-wetting experimental data of barley.  The Approximate form of diffusion, the Exponential and the Polynomial models have less fitting ability then the Page and Diffusion models for the entire period...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Post harvest technology Thin-layer; Barley; Re-wetting parameters; Temperature; Relative humidity.
Ano: 2013
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2539

Some physical properties of acha as affected by moisture content
Provedor de dados: 111
Autores: Satimehin, Adesola Adebanjo; Philip, Theresa K.
Mechanization of acha processing has been limited by dearth of data on engineering properties to aid design of equipment for its postharvest operation. Therefore, this study was undertaken to determine the particle size, bulk density and porosity of acha as influenced by moisture content. Particle size was determined by the method of sieve analysis.  The fineness modulus obtained from the analysis was used in calculating the average particle size of acha grains.  Bulk density was determined from the mass of a known volume of samples, while a porosity measuring apparatus was used for measuring the porosity of acha grains at four levels of moisture content and five levels of bulk density.  The results showed that acha grains increased in size from 1.745 mm...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Post harvest process engineering Acha  physical properties  moisture content  bulk density.
Ano: 2012
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2188

Performance of lugged cage wheel for wetland cultivation
Provedor de dados: 111
Autores: Kumar, Arvind; Baruah, D.C.
Rice is a major food grain crop grown in North-eastern Himalayan region of India with varying level of mechanization. Rice field remains wet and loose for a considerable period of growing season. Land preparation of rice field is one of the critical operations both in terms of timeliness and energy requirement. The losses up to 70%-80% of input power are reported while negotiating wetland terrain by tractors or power tillers, particularly in difficult terrain. This paper described the attempts made to address the issue of wetland traction primarily relevant to mechanization of rice cultivation in North-eastern Himalayan region of India. There is a variety of design of cage wheels used on power tillers with varying levels of performances based on the soil...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Farm Machinery and Power split lug; Cage wheel; Wetland cultivation; Wheel slip; Field capacity.
Ano: 2016
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3819

Design and performance evaluation of centrifugal cashew nut sheller
Provedor de dados: 111
Autores: KILANKO, Oluwaseun.
Cashew nut centrifugal shelling machine was designed and constructed. Shelling efficiency and whole kernel recovery was evaluated for hot-oil roasted nuts on the machine. The design was based on the principle of the optimum kinetic energy that could break the cashew nut shell. The deformation energy used was 4.8763 Joules. The angular velocity of the impeller calculated from the energy was 376.12 rad/s which was equal 3592 rpm. The motor power used was more than 917.34 Watts, the minimum power requirement. The prototype of cashew nut sheller was constructed and evaluated for its shelling efficiency and whole kernel recovery using three levels of moisture content (7.00%w.b., 8.46%w.b. and 9.83% w.b.), three levels of impeller speeds and three grades (large,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Mechanical Engineering cashew nut; Moisture content; Nut size; Speed; Hot-oil roasting; Shelling efficiency; Whole kernels.
Ano: 2018
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4203

Pressure build-up and wear analysis of tapered screw extruder biomass briquetting machines
Provedor de dados: 111
Autores: Orisaleye, Joseph Ifeolu; Ojolo, Sunday Joshua; Ajiboye, Joseph S.
The design of efficient screw extruder biomass briquetting machines is important for the utilization of loose biomass materials from wood and agricultural wastes for the production of solid fuel. In this study, the effects of geometrical parameters (channel depth and helix angle) and operational parameters (friction coefficient, mass flow rate and speed) on the performance and design of the briquetting machine were investigated using a pressure model based on the plug flow theory. An analytical model, which utilizes the pressure model, was also developed from Archard’s wear law to investigate screw wear of biomass briquetting machines. The study on the pressure model showed that a shallow screw channel and small helix angle resulted in rapid pressure...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mechanical Engineering; Agricultural Engineering; Bioenergy; Renewable energy; Machine design Screw extruder; Biomass briquetting machine; Plug flow theory; Archard’s wear law; Pressure build-up.
Ano: 2019
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4927

Effect of temperature on gel extraction from Aloe vera leaves
Provedor de dados: 111
Autores: Chandegara, Vallabh Keshavbhai.
Aloe vera has drawn attention for its commercial importance in the preparation of nutritional, medicinal and cosmetic products. The temperature is the important criteria for processing of Aloe vera to preserve its biological activity. In this investigation the principle of centrifugation was employed for the extraction of gel from Aloe Vera leaves. The experiment was planned with treatments as three level of centrifuge temperature i. e. 5, 10 and 32 0 C (Ambient), at varying centrifuge speed and centrifuge duration. The effect of temperature, on gel recovery  and quality parameters like viscosity of gel,  refractive index of gel, optical density of gel, and TSS content of gel, were studied. It was concluded that the extraction of gel from Aloe vera should...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Agricultural Processing Aloe vera barbadensis  gel extraction  viscosity  temperature.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2958

Coefficients of repair and maintenance costs of self-propelled combine harvesters in Italy
Provedor de dados: 111
Autores: Calcante, Aldo; Fontanini, Luca; Mazzetto, Fabrizio.
Purchasing and maintaining agricultural machines are two of the most considerable costs of the agricultural sector, which includes farm equipment manufacturers, farm contractors and farms.  In this context, repair and maintenance costs (R&amp;M costs) generally constitute 10%-15% of the total costs related to agricultural equipment and tend to increase with the age of the equipment; hence, an important consideration in farm management is the optimal time for equipment replacement.  R&amp;M cost estimation models, calculated as a function of accumulated working hours, are usually developed by ASAE/ASABE for the agricultural situation in the United States, which is considerably different than agricultural context of other countries.  So, the goal of this...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Agricultural mechanization Repair and maintenance costs; Self propelled combine harvesters; Cost estimation models.
Ano: 2013
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2512

Dynamic performance and ride comfort evaluation of the seat suspension system in a small agricultural tractor to attenuate low-frequency vibration transmission
Provedor de dados: 111
Autores: Jayasuriya, Hemantha P. W.; Sangpradit, Kiattisak.
To obtain safety and ride-comfort conditions for tractor operators, the tractor seat suspension system was analyzed and modified to attenuate the vibration transmission.  Experiments were conducted on a standard test track to investigate the effect of seat vibration on operators using a small 4-wheel tractor, and to develop a suitable seat suspension system following ISO guidelines.  Dynamic and ergonomic effects of vibration on operator using conventional seat and the new design were compared ensuing standard test procedures.  The supportive observations on ergonomic aspects were also made, viz. the operator heart rate, postural comfort survey, and Cornell ergonomic seating evaluation.  The vibration of existing seat in vertical direction had the highest...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Ergonomics; Operator safety Ride-comfort; Ergonomics; Suspension; Postural-comfort; Attenuation.
Ano: 2014
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2238

Biomass Hydrolysis into Sugars via Activated Carbon-Supported Sulfonic Acid
Provedor de dados: 111
Autores: Kolar, Praveen.
An activated carbon-supported sulfonic acid catalyst was synthesized and employed as a hydrolysis agent for hydrolysis of model and real biomasses including cellulose, starch, cellobiose, and switchgrass.  Model biomasses including cellulose, starch, and cellobiose were hydrolyzed at 90 0C for 6 and 24 h while switchgrass was hydrolyzed at 75 and 90 0C for 6, 12, 18 and 24 h. For model biomasses, highest glucose was produced from cellobiose corresponding to 237. 1 ± 0.86 mg g-1 after 24 h, whereas switchgrass yielded a maximum glucose of 72.67 ± 1.03 mg g-1 after 18 h at  90 0C.   In addition, effects of physical (ultrasonication) and chemical (NaOH and H2SO4) treatments prior to hydrolysis of switchgrass were also studied. The data suggested that physical...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Biosystems Engineering Activated carbon  sulfonic acid catalyst  hydrolysis  biomass  switchgrass  USA.
Ano: 2016
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3898

Natural fiber-reinforced composite hollow pipes for potential use in rural building construction in tropical Africa
Provedor de dados: 111
Autores: Olorunnisola, Abel Olajide; Boboye, Adetutu.
Use of cement-bonded composites is gaining prominence in construction works across the globe. Typical uses include roofing, cladding, ceiling and tiling of walls and floors. The use of these materials as hollow pipes is yet to be fully explored. There is, also, the challenge of the relatively high cost of Ordinary Portland Cement (OPC) in many developing countries which adds to the overall cost of cement-bonded composite products. This study was conducted, therefore, to develop composite hollow pipes using natural sponge fiber (Acanthanus montanus) as reinforcement at 3% by weight of cement. Lime, derived from welder’s carbide waste, was added as partial replacement for cement at 0 (control), 10%, 20%, 30%, 40%, and 50% levels respectively. The effects of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Farm Structures and Construction Acanthanus montanus  carbide waste  composites  hollow pipes  rural construction.
Ano: 2016
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3506

Towards the implementation of the Green Building concept in agricultural buildings: a literature review
Provedor de dados: 111
Autores: Mohamed Samer; Cairo University, Faculty of Agriculture, Department of Agricultural Engineering.
The “Green Building” is an interdisciplinary theme, where the green building concept includes a multitude of elements, components and procedures which diverge to several subtopics that intertwined to form the green building concept.  Generally, the green building is considered to be an environmental component, as the green building materials are manufactured from local eco-sources, i.e. environmentally friendly materials, which are then used to make an eco-construction subject to an eco-design that provides a healthy habitat built on the cultural and architectural heritage in construction while ensuring conservation of natural resources.  This ensures disassembling the building components and materials, after a determined building lifetime, to...
Palavras-chave: Agricultural Engineering; Agricultural Buildings and Bioenvironmental Engineering green building; Agricultural buildings; Biocement; Eco-cement; Green concrete; Green roofs; Low-energy building; Zero-carbon building; Eco-construction.
Ano: 2013
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2329

Modeling of thin-layer solar drying kinetics of cassava noodles (tapioca)
Provedor de dados: 111
Autores: Ezeanya, Nnaemeka Charles.
This work aimed at modeling thin-layer solar drying of cassava noodles (tapioca). The selection of good drying models for dryers helps to improve their efficiency. Drying data of tapioca was obtained using a forced convection solar dryer. The treatment combinations of the experiment comprise of air flow velocities (V) of 1.5, 2.5, and 3.5 m/s; drying layer thicknesses (B) of 0.48 and 0.72 cm; and initial moisture contents (Mi) of 297, 186, and 122% (dry basis). Eleven thin-layer drying models from literature, in addition to a new model developed in this work were all fitted to the solar drying data of tapioca. Least square regression analysis was carried out and comparison between drying models was made using goodness of fit statistical parameters. Drying...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Power and machinery Engineering Cassava noodles  drying models  statistical parameters  effective moisture diffusivity  activation energy  Nigeria.
Ano: 2018
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4578

An on-line advisor for sizing and economic analysis of  anaerobic digestion plants
Provedor de dados: 111
Autores: Busato, Patrizia; Berruto, Remigio; Sopegno, Alessandro; Cornelissen, Renè.
A web-based service was deployed to appropriately size bio-gas plant capacity and perform its economic viability and return on investment based on biomass availability.  The tool is based on accepted biogas plant engineering design practice, incorporating the effects of incentives resulting from energy policies for member nations of the European Union participating in the Bioenergy Farm IEE and EU funded project.  The service provides a comprehensive database that allows consultants and farmers to analyze anaerobic digestion systems at different levels of granularity.  It also included multilingual support.  An adoption program was conducted to increase awareness on the availability of the service and ensure appropriate use and interpretation of its...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Information Technology Biogas; Bioenergy; Feasibility; Viability; Subsidy; Web application; Free.
Ano: 2014
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2714

Processing and storage stability of bottle gourd (L. siceraria)
Provedor de dados: 111
Autores: Gajera, Ramesh R.; Joshi, D. C.
Abstract: Bottle gourd (Langenariasiceraria), Aonla (EmblicaofficinalisGaertn.), Lemon (Citrus x limon) and Ginger (Zingiberofficinale) juice was blended in the proportion of 87.90: 23.40: 5.70: 6.00 mL, respectively.  Prepared blend juice was hot filled in glass bottles and thermally processed over a temperature range over 80-950C for 5-30 min.  Significant difference was observed in ascorbic acid (vitamin C), total plate counts and, yeast and mould counts (P&lt;0.05), while no significant difference was in pH and TSS (P&gt;0.05).  The best thermal process was found at 85°C hot filling and processing at 85°C for 5 min.  At this temperature-time combination, 3.52 pH, 5.17 oBrix TSS, 38.32 mg per 100 mL ascorbic acid,      35 cfu mL-1 total plate counts, 2...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Agril. Process and Food Engg. Blend juice; Thermal processing; Storage stability; Physicochemical; Microbiological.
Ano: 2014
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2783