Design, fabrication and performance evaluation of Mechanical Rice Straw Chopper Con Mixer
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Date
2024
Authors
Christine Neil C. Mariano
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Abstract
The mushroom industry in the Philippines is experiencing growth due to the recognized nutritional and medicinal benefits of mushrooms. However, the manual preparation of mushroom growing substrate poses challenges in terms of labor intensity and costs. To address this, a study was undertaken to design and assess the performance of a mechanical rice straw chopper with a mixer tailored for the local mushroom industry.
The study aimed to mechanize the labor-intensive process of mushroom substrate production by designing and fabricating a rice straw chopper con mixer. The development process was detailed, involving the design and fabrication of the machine to address existing challenges. performance metrics such as chopping and mixing efficiency, along with output capacity, were assessed using ANOVA and mean comparisons by LSD.
The study successfully addressed key operational challenges and achieved its objectives. It was determined that the machine operates at a maximum output of 283.67 kg/hr with an efficiency of 94.54%. A comparative analysis of manual versus mechanized methods revealed significant reductions in labor costs and an increase in substrate production when using the machine. Economic viability was affirmed through a comprehensive cost analysis.