IJBTT

Modification, Fabrication, and Performance Evaluation of Maize Threshing and Grinding Machine

	International Journal of Recent Engineering Science (IJRES)
	© 2020 by IJRES Journal
	Volume-7 Issue-5
	Year of Publication : 2020
	Authors : Ugwu Kenneth Chikwado, Diyoke Chidiebere
	DOI :    10.14445/23497157/IJRES-V7I5P101

Citation 

MLA Style :Ugwu Kenneth Chikwado, Diyoke Chidiebere  "Modification, Fabrication, and Performance Evaluation of Maize Threshing and Grinding Machine"International Journal of Recent Engineering Science 7.5(2020):1-8. 

APA Style :Ugwu Kenneth Chikwado, Diyoke Chidiebere. Modification, Fabrication, and Performance Evaluation of Maize Threshing and Grinding Machine  International Journal of Recent Engineering Science, 7(5),1-8.

Abstract
The threshing and grinding machine were modified, and their performance was evaluated. The modifications include reducing the device’s height, changing the hopper, lowering the clearance of the threshing and grinding chamber, changing auger spacing, and changing the milling chamber to bur plate. The modified machine consists of threshing and grinding chambers. The maize grains were separated from the cob at the threshing chamber. Then the cob was collected through the outlet chute. The incorporated blower separates the maize grain from the chaff before entering the grinding chamber. The separated grain entered the grinding chamber and was grounded by compressive means through the plate. A 2 hp electric motor provides drive through belt connections to drive the pulley on the threshing chamber, and another 2 hp electric motor provides the drive for the grinding chamber. The actual test was conducted using three different moisture contents and feed rates. The efficiency of the modified machine was 86.14 % against 61.05 % of the old on the moisture content of 10 %. The analysis of variance (ANOVA) of the results obtained at a 5 % percent probability confirmed that the moisture content of the maize was an important parameter that affects the performance of the machine.

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Keywords
Modification, Performance Evaluation, Maize, Threshing, Grinding, Machine