Development and Performance Evaluation of a Hand Operated Maize Sheller

Year 2023, , 1 - 14, 30.06.2023

Muyıwa Okusanya , Francis Agbongiaban

https://doi.org/10.46592/turkager.1178281

Abstract

Maize is a popular food crop of the world. After harvest, maize is shelled traditionally by small holders of farms. This method has not proved to be effective due to drudgery attached, kernel breakage and poor shelling capacity. Over time, motorized shellers have been introduced to address the challenges faced by processors; they have not gained widely adoption due to unaffordable cost of owning one. There is the need to design a cost effective and eco-friendly solution that will suit the need of subsistence farmers in the industry. This work focuses on development of a hand-operated maize sheller. A major component is the lever arm fitted to a ball bearing to transfer rotational motion to stripping chute. The machine uses the principle of abrasion to shell maize. Model (Y=54.92+ 0.248 X1-2.68 X2 ± 1.187) obtained from evaluation reveals that shelling capacity is a function of two predictors, speed (X1) and moisture content (X2). For every unit increase in cranking speed at a particular moisture content (23.2%, 18.5% or 14%) shelling capacity increases considerably. When the experiment is run at much lower moisture content (18.5%) shelling capacity increases significantly. The machine reached highest shelling capacity (60 kg h-1.) at lowest moisture content (14%) and highest speed (120 rpm). The machine was developed at affordable cost of $61. Shelling efficiency is also a function of speed and moisture content at which it is processed. For this condition, maximum shelling efficiency is achieved at lowest moisture content possible (14%) and terminal speed of 80 rpm. Mechanical damage resulted when the speed and moisture content are inconsiderably high. The machine is suitable for use by small and medium scale processors; it can efficiently replace the manual shelling methods as it is affordable, less stressful and easy to maintain.

Keywords

Crank, Stripping chute, Sheller, Multivariate data, Shelling capacity

Supporting Institution

The Federal Polytechnic Ilaro

Thanks

Thanks in anticipation of your favorable consideration of the paper

References

• Ajav EA, Okusanya MA and Obi OF (2018). Jatropha oil extraction optimization through varied processing conditions using mechanical process. International Journal of Innovative Research & Development, 7(9): 227-241. https.//doi.org/10.24940/Ijird/2018/V7/I9/Sep18058.
• Azeez TM, Uchegbu ID, Babalola SA and Odediran OO (2017). Performance evaluation of a developed maize sheller. Journal of Advancement in Engineering and Technology. Afe Babalola Repository.
• Amare D, Endalew W, Yayu N, Endeblihatu A, Biweta W, Tefera A and Tekeste S (2017). Evaluation and demonstration of maize shellers for small-scale farmers. MOJ Applied and Biomechanics, 1(3): 0014. https.//doi.org/10.15406/mojabb.2017.01.00014.
• Belonio AT (2004). Agricultural power and energy sources. Department of Agricultural Engineering and Environmental Management, College of Agricultur, Central Philippines University, Iloilo. City.
• Boluwade E. and Smith G. (2022). Grain and Feed Update. United State Department of Agriculture: Foreign Agricultural Service and Global Agricultural Network.
• Dagninet A, Fentahun T and Abu T (2008). On-farm evaluation and verification of maize–sorghum thresher. Proceedings of the 3rd Annual Regional Conference on Completed Research Activities on Soil and Water Management, Forestry and Agricultural Mechanization, 1-4 September, 2008. Ethiopia: ARARI
• Danilo M (2003). Maize: Post-Harvest operation. https://www.aflatoxinpartnership.org/wp-content/uploads/2021/05/Maize-importance-globaly.pdf. FAO technical Report, Ethiopia. Accessed May, 2022.
• IITA (2020). IITA-BIP Sets record for maize production per hectare in Nigeria. https://www.iita.org/news-item/iita-bip-sets-record-for-maize-production-per-hectare-in-nigeria/. Accessed May, 2022.
• Okojie J (2022). Bridging the Nigeria’s maize shortfall. https://businessday.ng/agriculture/article/bridging-nigerias-maize-supply-shortfall/. Accessed June, 2022.
• Okusanya MA and Oladigbolu AA (2020). Development of a motorised thresher for paddy rice processing. International Journal of Scientific & Engineering Research (IJSER), 11(2): 821-836.
• Rajender G, Anubabu T, Krishna CH, Ali MDM, Thirupathi CH and Vinod V (2018). Performance evaluation of hand operated maize sheller. International Journal of Agricultural Science, 10(7): 5676-5678.
• Sedara E, Odediran E and Manuwa S (2021). Design and fabrication of an ımproved motorized maize sheller/threshing machine. Journal of Engineering Studies and Research, 26(4): 120-131. https://doi.org/10.29081/jesr.v26i4.244
• USDA (2022). Nigeria’s maize production at highest level since independence. United States Department of Agriculture. Foreign Agricultural Service. https://www.fas.usda.gov/data/nigeria- grain-and-feed-annual-5
• Zach A (2020). Statology. https://www.statology.org/author/admin/ Access June, 2022.