Design and Manufacture of A Manual Vertical Groundnut Roasting Machine
DOI:
https://doi.org/10.26437/ajar.v11i1.823Keywords:
Groundnut, firewood. industries. liquified petroleum gas. roasting machineAbstract
Purpose: The study aimed to develop a roasting machine to meet the demand of small-scale groundnut processing industries.
Design/Methodology/Approach: Three conceptual designs were considered for the drive system. The conceptual designs were assessed using a comprehensive evaluation criterion. AutoCAD was used to design the roaster parts. After the design, the parts were manufactured and assembled to form the roaster. Two experiments were conducted with different fuel sources, and a 4 kg groundnut mass was used to test the roaster. The fuel sources used were firewood and LPG, with an average seed loss of 1.8%.
Research Limitation: The roaster was manufactured based on existing designs in Northern Ghana.
Findings: The roaster's throughput capacity and efficiency were 15 kg/h and 98%, respectively. Unlike previous roasters, whose cylinders were positioned horizontally, this roasting machine's cylinder was placed vertically, with the upper part of the roaster opened, making it possible to monitor the groundnut while roasting.
Social Implications: Groundnut roasting is essential to ensure quality improvement, easy handling, safe storage, further processing, and value addition of the product.
Practical Implications: The roaster's design allows it to use charcoal as fuel. It employs a bevel gear system, which requires less operator effort. This implies that larger volumes of groundnut can be roasted within the shortest possible time.
Originality/Value: This work uniquely manufactures a vertical groundnut roasting machine for local industries. This machine enables easy monitoring of the groundnut during roasting. The design differs from the horizontal ones that already exist. This knowledge adds to our understanding of existing roasters in the local areas.
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