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| Jordan,Rodrigo A.; Cortez,Luís A. B.; Barbin,Douglas F.; Lucas Junior,Jorge de. |
| ABSTRACT Besides cold for milk cooling, dairy facilities need to produce hot water for cleaning of tools and equipment. Overall, ohmic heating has been used in dairy farms, increasing power consumption and manufacturing costs. Therefore, as an alternative to reduce power consumption, this paper proposed a water-water heat pumping for simultaneous cold and heat generations. Accordingly, operational tests were performed with three heat-pump prototypes designed for dairy farms, in both laboratory and field levels. At laboratory, tests were carried out using electricity and CNG to define a coefficient of performance (COP). Biogas tests were performed in the field to measure its consumption. CNG average consumption was of 1.118 m3/ h, while biogas consume was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Thermal power; Thermal-accumulation; Cooling; Heating. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000500779 |
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| Gergely, Sandor; Magda, Sandor. |
| A zöldenergia (energetikai biomassza) előállítható elsődleges, másodlagos és harmadlagos biomasszából. Elsőként a melléktermékeket és hulladékokat célszerű felhasználni, majd pedig a fás és lágy szárú célültetvényeken előállított zöldenergia-hordozókat. A hazai mező- és erdőgazdasági melléktermék és hulladék energetikai célra hasznosítható évi mennyisége 4,9-5,7 millió tonna közötti, amely 40-50%-kal több, mint az évente kitermelt tűzifa. A földgázfűtés kiváltása a helyben keletkezett és/vagy termelt zöldenergia-hordozókkal már ma is gazdaságos, főként abban az esetben, ha települési és/vagy kistérségi logisztikai központ közbeiktatásával történik a zöldenergia-hordozók hasznosítása hőtermelésre. A zöldenergia-hordozók szabályozott körülmények között... |
| Tipo: Article |
Palavras-chave: Zöldenergia; Energiahordozók; Fűtés; Faültetvény; Foglalkoztatás; Green energy; Energy resources; Heating; Woody energy plantation; Employment; Agricultural and Food Policy; Labor and Human Capital; Land Economics/Use. |
| Ano: 2011 |
URL: http://purl.umn.edu/119935 |
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| Collatto,DC; Mansilha,RB; Chiwiacowsky,LD; Lacerda,DP. |
| ABSTRACT This paper intends to outline a model of multi-criteria analysis to pinpoint the most suitable energy source for heating aviaries in poultry broiler production from the point of view of the farmer and under environmental logic. Therefore, the identification of criteria was enabled through an exploratory study in three poultry broiler production units located in the mountain region of Rio Grande do Sul. In order to identify the energy source, the Analytic Hierarchy Process was applied. The criteria determined and validated in the research contemplated the cost of energy source, leadtime, investment in equipment, energy efficiency, quality of life and environmental impacts. The result of applying the method revealed firewood as the most appropriate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Poultry raising; Heating; Energy sources; Decision making; Analytic hierarchy process. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000300363 |
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| Pinheiro,Ana Luiza; Jacomino,Angelo Pedro; Arruda,Maria Cecília de; Kluge,Ricardo Alfredo. |
| Hydrothermal treatment facilitates the peeling of 'Pera' sweet orange fruit and does not alter its quality. The aim of this work was to adapt the technology of peeling for the use of hydrothermal treatment in 'Murcott' tangor and to evaluate its influence in the CO2 production and the physicochemical, microbiologic and sensorial characteristics of fruits. The peeling time, the yield of marketable fruits and the internal temperature of fruits during the treatment were also evaluated. The hydrothermal treatment consisted of placing the fruits in a water-bath at 50 ºC for 5, 10, 15, 20, 25 and 30 min. Fruits were peeled by first opening a gap in the peduncle region with a knife and then manually removing the flavedo and albedo. Fruits were stored at 5 ºC for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fresh-cut; Heating; Quality; Appearance; Easy peeling. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000600005 |
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| Andrades,A.O.; Mazzanti,A.; Beckmann,D.V.; Aiello,G.; Chaves,R.O.; Santos,R.P.. |
| The present study aimed to assess the heat generated by a therapeutic ultrasound (TUS) in a metal bone plate and adjacent structures after fixation to the femur of canine cadavers. Ten pairs of hind limbs were used, and they were equally distributed between groups that were subjected to 1- and 3-MHz frequencies, with each frequency testing 1- and 2-W/cm² intensities. The right hind limb was defined as the control group (absence of the metal plate), and the left hind limb was the test group (presence of the metal plate). Therefore, the control groups (CG) were denominated CGI, using TUS with 1-MHz frequency and 1-W/cm² intensity; CGII, using 1-MHz frequency and 2-W/cm² intensity; CGIII, using 3-MHz frequency and 1-W/cm² intensity; and CGIV, using 3-MHz... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dog; Physical therapy; Deep heat therapy; Heating; Contracture. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000501343 |
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| Figueiredo,Maurílio Assis; Baêta,Hudson Eustáquio; Kozovits,Alessandra Rodrigues. |
| Native grasses are potential species to be used in land rehabilitation. However, due to the lack of better knowledge of their performance, preference is given to exotic plants, which may be invasive and negatively affect the local biodiversity. In order to better understand the propagation of native species of the Quadrilátero Ferrífero (Minas Gerais, Brazil) using their seeds, and in so doing, indicate possible candidates for land rehabilitation, this study investigated the germination patterns of the following grasses: Andropogon bicornis L.; Andropogon leucostachyus Kunth; Setaria parviflora (Poir.) Kerguélen; Cenchrus brownii Roem. & Schult; Echinolaena inflexa (Poir.) Chase, and Apochloa euprepes (Renvoize) Zuloaga & Morrone. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Poaceae; Seed dormancy; Storage time; Heating; Potassium nitrate; Caryopsis. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000300013 |
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| Ribeiro,Roberta de Oliveira Resende; Carneiro,Carla da Silva; Mársico,Eliane Teixeira; Cunha,Fernanda Lima; Conte Junior,Carlos Adam; Mano,Sérgio Borges. |
| Hydroxymethylfurfural (HMF) content is internationally recognized for its ability to indicate the freshness or lack of freshness of honey and can be used to judge the processing and storage condition of honey. The objective of the present study was to evaluate the evolution of HMF levels in fresh extracted honeys submitted to different temperatures ranging from 30 to 100º C, during pre-established time intervals (30, 45, 60, 180 and 720 minutes).The test was conducted in floral honey with an initial HMF content of 2.2 mg/Kg. The maximum value recommended by the Brazilian law (60 mg/Kg) was not exceeded in the samples subjected to heating for 30, 45 and 60 minutes regardless of the temperatures used. When the samples were heat treated during 180 minutes at... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Honey quality; HMF; Heating. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000200009 |
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