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A case-study approach to profitability assessment in fermented African locust beans (iru) production using break-even analysis CIGR Journal
Atoyebi, Jelili Olaniyi; Bello, Sururah Apinke; Owolarafe, Oseni Kehinde.
The significance of a break-even point analysis is much important to the small- scale enterprises in determining profit or loss incurred. In this study, a case study approach was used to test this concept on iru production using structured oral interviews and visual observation of a production centre in Nigeria. Data analysis was achieved using production cost, the unit quantity and break-even point analysis. The results show that the monthly average cost of N 32,237.00, the monthly average variable cost of N71,334.00, Contribution Margin Ratio of 47.06 % and break-even sales of N 68,502.00 were obtained using a traditional method of iru production (TIPP). In a mechanized method (MIPP), monthly average fixed cost of N 85,887.00, the monthly average...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Locust bean- processing; System; Traditional; Mechanized; Break-even analysis; Production cost; Profitability.
Ano: 2022 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6721
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Comparative evaluation of the performance of motorized and pole and Knife oil palm fruit bunch harvester CIGR Journal
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
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Development of a Multipurpose Small Scale Dryer for Agricultural Products CIGR Journal
Owolarafe, Oseni Kehinde; Bello, Taiwo Kolade; Ogunsina, Babatunde Sunday; Falana, Olumide Babatope; Adetifa, Babatunde Olusola; Ogunseeyin, Obafemi.
A multipurpose cabinet dryer was designed, constructed and tested using locally available materials. The system comprises a heating chamber, heat exchanger, drying trays, 3-phase blower, three heating elements of 1800 W each, and a control box, which consists of temperature control, contactor, thermocouple, and circuit breaker. The dryer was evaluated based on power consumed, moisture removal, drying rate, and drying efficiency. The result showed that the energy consumed when drying plantain chips, moringa leaves, okra, and locust beans are 346.55, 55.92, 110.63 and 49.64 kJ, respectively. The energy consumed increased with an increase in the moisture removed and drying time. Similarly, the drying rate for plantain chips, moringa leaves, okra, and locust...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Small-scale dryer; Crops; Moisture content; Drying rate; Drying efficiency.
Ano: 2021 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6687
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Development of a support mechanism for the use of motorized oil palm fruit bunch cutter CIGR Journal
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
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Effect of moisture content and loading orientation on some strength properties relevant in the design of snake gourd (trichosanthescucumerina. l) seed handing device CIGR Journal
IDOWU, David Oluwafemi; Owolarafe, Oseni Kehinde.
The knowledge of mechanical properties under applied forces is very important to engineers during the design and handling of agricultural products. This study was carried out to evaluate the effect of moisture content and loading orientation on some strength properties of snake gourd (Trichosanthes cucumerina. L) seed. The strength properties measured are compressive extension at yield, compressive strain at yield, compressive load at yield, compressive load at break and energy at yield. These properties were evaluated at five moisture levels (6.3, 8.6, 12, 14, and 17% dry basis) under the three loading orientations (length, width and thickness). The results show that loading orientation has great effect on the compressive properties of the seed. At all...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Seed; Compressive properties; Moisture content; Orientations.
Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3423
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Fracture Resistance of Kola Nut (Cola nitida) CIGR Journal
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
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Mathematical modelling of the performance of an impact snake gourd (Trichosanthes cucumerina. L) seed sheller CIGR Journal
Idowu, David Oluwafemi; Owolarafe, Oseni Kehinde.
A mathematical model for the prediction of shelling efficiency of an impact snake gourd seed decorticator was presented using dimension analysis based on the Buckingham’s pi theorem.  Experimental verification of the models was conducted comparing the theoretical predictions with estimates from the representation of conventional methods.  A high coefficient of determination was found between the predicted and the experimental value (98.45% for effect of moisture content on decortication efficiency; 99.69% for effect of hammer diameter on decortications efficiency and 97.35% for effect of hammer speed on the decortications efficiency) showing that the model is appropriate.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Post harvest dimension analysis; Model equation; Decortication efficiency; Moisture content; Hammer diameter; Hammer speed.
Ano: 2017 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3573
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