ABSTRACT
This
study involves development
and economic analysis of a yam minisett processing machine for effective
yam production. The minisett cutting technology was developed to
advance projectile cutting profile motion required for yam minisett processing
as obtained in the native technique. The average length and breadth of the seed yams used
for designing the minisett processing machine was also determined as 247.80mm
and 66.75mm respectively. The developed machine consists of the frame, speed
reducer, pulley, belt, crank mechanism, connecting rod, hopper, seed yam carrier,
cutting blades, and discharge chute as major components. Taguchi
design/optimization tool was used to carry out the performance optimization and
cost - benefit analysis to obtain the investment cost in this study. Performance
analysis results show that the crank shaft speed, connecting rod length and the number of blades,
were used as functional operational parameters while the machine capacity and
efficiency are the functional performance indicators of the Yam processing
machine. The results show that the machine operates at an optimal efficiency
and capacity of 96.24% and 28,888minsett/hr respectively, obtained at a crank
shaft speed of 10-80rpm, connecting rod length of 470-540mm and cutting blade
number settings of 13.The developed machine is economically viable because its
annual return rate of 64.90% outweighed banks maximum fixed deposits return of
16% and prime lending rate of 29% in Nigeria. Also its payback period of 1.85years
is less than its 10 years useful life. The machine cost- benefit ratio, net present value of 1.75 and ₦105,749,969.20
respectively are more than one which was worthy for investment. These economic
indicators setting showed positive credit recovering prospects of this
innovation.
IGBO, I (2024). ’Development And Multi-Objective Analysis Of Yam Minisett Processing Machine:- Igbo, Joseph C.. Repository.mouau.edu.ng: Retrieved Oct 12, 2024, from https://repository.mouau.edu.ng/work/view/development-and-multi-objective-analysis-of-yam-minisett-processing-machine-igbo-joseph-c-7-2
IGBO, IGBO. "’Development And Multi-Objective Analysis Of Yam Minisett Processing Machine:- Igbo, Joseph C." Repository.mouau.edu.ng. Repository.mouau.edu.ng, 30 Apr. 2024, https://repository.mouau.edu.ng/work/view/development-and-multi-objective-analysis-of-yam-minisett-processing-machine-igbo-joseph-c-7-2. Accessed 12 Oct. 2024.
IGBO, IGBO. "’Development And Multi-Objective Analysis Of Yam Minisett Processing Machine:- Igbo, Joseph C.". Repository.mouau.edu.ng, Repository.mouau.edu.ng, 30 Apr. 2024. Web. 12 Oct. 2024. < https://repository.mouau.edu.ng/work/view/development-and-multi-objective-analysis-of-yam-minisett-processing-machine-igbo-joseph-c-7-2 >.
IGBO, IGBO. "’Development And Multi-Objective Analysis Of Yam Minisett Processing Machine:- Igbo, Joseph C." Repository.mouau.edu.ng (2024). Accessed 12 Oct. 2024. https://repository.mouau.edu.ng/work/view/development-and-multi-objective-analysis-of-yam-minisett-processing-machine-igbo-joseph-c-7-2