Browsing by Author "BUSARI, RA"

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    Development and Performance Evaluation of a Modified Africa Bush Mango (Irvingia gabomensis) Cracker .
    (Published by the World Bank assisted National Agricultural Research Programme., 2019) BUSARI, RA; AKPENPUUN, TD; IYANDA, MO
    An African bush mango cracker was modified and fabricated to address the challenges of the conventional method of cracking nuts which involves striking the nut. The tedious nature of this process constitutes a major setback which restricts the production to a very small scale. The cracker consists of a frame, cracking table, slider–crank mechanism, hopper, feed chute, slot, cracking unit electric motor and reduction gear. The machine was evaluated with respect to throughput capacity and cracking efficiency at five moisture content levels (13, 15, 17, 20 and 25%) moisture content (MC) dry basis. At 13% MC; the output capacity was 7.13 kg/hr and cracking efficiency was 98% while at 15% MC; the output capacity and cracking efficiency reduced to 7.04 kg/hr and 96% respectively. Similarly, at 17% MC; output capacity and cracking efficiency further reduced to 7.02 kg/hr and 95% respectively while at 20% MC; the output capacity and cracking efficiency were reduced to 6.74 kg/hr and 93% respectively. There was a similar trend when the test was performed at 25% MC, as the output capacity and cracking efficiency showed a further reduction to 6.50 kg/hr and 90% respectively. These results were different from the old cracker that had throughput capacity and cracking efficiency of 4.32 kg/hr and 70% respectively. A significant trend was established which showed that as the moisture content of the nuts decreases, machine performance increases. Based on these results, drudgery and other hazards associated with manual cracking of the African bush mango are eliminated, the machine saves time and made processing of the seeds easier.
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    Development and Preliminary testing of a Mixing and Pelletizing Machine for Livestock Feeds Production.
    (Published by the World Bank-assisted National Agricultural Research Programme., 2021) ISHOLA, TA; BUSARI, RA; ABOYEJI, OS
    Agro crop residues such as cereal, stovers and fodders do not individually contain all the nutrients required for the optimum growth of ruminant animals, hence, the need to bring them together to form a balanced diet. A mixing and pelletizing machine was designed and constructed to mix and pelletize pulverized feed materials (elephant grass, wheat bran, cassava peel, molasses, cassava starch, bone meal, maize stover and groundnut cake). The mixing unit consists of the mixing hopper and a mixing chamber that houses the mixer shaft and the mixing paddles while the pelletizing unit consists of the pelletizer hopper, pelletizing barrel, a shaft with worm thread and die perforation as outlet for the pellets. A preliminary performance test was carried out on the machine to determine the effects of binder condition and moisture content on the throughput capacity and pelletizing efficiency. Three levels of binder conditions (0 kg, 0.5kg and 0.9 kg of molasses) and five levels of moisture contents (20, 22, 24, 26 and 28% (dry basis)) were used. The results showed that the highest throughput capacity and pelletizing efficiency were 116.12 kg/h and 86.76 % at a moisture content of 26 % (db) respectively. From the proximate analysis done, samples with 0.9 kg molasses generally had the highest amount of ash content, crude fibre, crude protein and crude fat. This machine would enhance the availability of nutritious pelletized feedstock for ruminant animals all year round.
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    Effect of Operating Parameters on Decortication of Jatropha Curcas Fruits.
    (Published by the World Bank assisted National Agricultural Research Programme., 2022-01) ISHOLA, TA; BUSARI, RA; OYEBANJI, AI
    A Jatropha decorticator was designed, fabricated and its performance evaluation was carried out. Measured performance parameters included Decorticating efficiency, Cleaning efficiency, Percentage seed loss, Mechanical damaged index, and Decorticating performance index. A 5 × 2 × 2 factorial experiment in Completely Randomized Design was used to investigate the performance of the machine. The highest Decorticating efficiency, Cleaning efficiency and Decorticating performance index were 93.25%, 93% and 91.28% respectively. The lowest Percentage seed loss and Mechanical damage index were 1.49% and 1.19% respectively. More seed loss was experienced as the machine speed increased. Also, seed breakage was recorded at higher machine speed. Hence, biodiesel production from Jatropha would be highly productive and sustainable with this decorticating machine.