BENEFIT Partnership - 2021 annual report : bilateral Ethiopian-Netherlands Effort for Food, Income and Trade Partnership

Alemu, Dawit; Koomen, I.; Abate, Legesse; Schaap, Mirjam; Tefera, Tewodros; Vonk, Remko

doi:10.18174/554540

Cited by 1 publication

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“…Maize processing involves the following steps: harvesting, drying, de-husking, shelling, storing, and milling [17][18][19]. Shelling or threshing is one of the most important processing operations done on maize to bring out its quality and increase the shelve life [20]. Maize shelling is the process of removal of the kernel, leaving only the cob or seed rack [21].…”

Section: Introductionmentioning

confidence: 99%

Design and Development of a Second-class Lever for Maize Shelling Operation

Nwogu,

Nwankwojike,

Onwuka

et al. 2024

Preprint

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In this study, a lever was designed for manual shelling of maize. The lever is made up of a 30 mm diameter rod with a 10 mm diameter hole drilled at one end and a 20 mm diameter rod welded vertically to the rod, 400 mm from the other end. The maize ear is placed inside a 70 mm diameter tube before shelling and when the lever is pushed the maize ear is forced through the shelling tube, and in the process the seeds fall off the cob. Explicit Dynamic Analysis of the lever done in Ansys showed that the lever will effectively shell maize ears without damage to both seed and cob. Results of the Analysis gave 0.26485 m and of -9.7419e− 8 m as maximum and minimum values of directional deformation, 76386 Pa and 0 Pa respectively as maximum and minimum values of equivalent stress, 9,4005e− 6 m/m and 0 m/m as maximum and minimum values of equivalent strain, 29.507 m/s2 and 7e− 2 m/s2 as maximum and minimum values of total acceleration, and 21085 Pa and − 23604 Pa as maximum and minimum values of shear strain respectively. This study therefore develops and new and cost-effective means of shelling maize ears which requires neither electricity nor any sort of fuel to operate.

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Section: Introductionmentioning

confidence: 99%