Design and performance evaluation of a propeller-based peanut sheller: efficiency and Economic Feasibility Analysis

Authors

  • Anuwat Pachanawan Department of Agricultural Machinery Engineering, Faculty of Engineering and Industrial Technology, Kalasin University
  • Khunnithi Doungpoueng Department of Mechanical Technical Education, Faculty of Technical Education, Rajamangala University of Technology Isan, Khon Kaen Campus
  • Pisal Muenkaew Department of Agricultural Machinery Engineering, Faculty of Engineering, Rajamangala University of Technology Isan, Khon Kaen Campus
  • Kriengkrai Rayanasuk Department of Agricultural Engineering and Technology, Faculty of Agriculture and Natural Resources, Rajamangala University of Technology Tawan-Ok, Bangpra Campus, Chonburi
  • Must Srila Department of Manufacturing Industry Technology, Fuculty of Engineering, Maha Sarakham Rajabhat University

DOI:

https://doi.org/10.4186/ej.2025.29.10.15

Keywords:

peanut, propeller-type, peanut sheller, shelling performance, shelling machine

Abstract

This study focuses on the design and performance evaluation of a propeller-based peanut sheller intended to assist farmers with limited labor resources by enhancing shelling capacity and minimizing losses during the shelling process. The analysis focused on two key factors: rotor speed (RS) and concave clearance (CC). The sheller’s performance was evaluated based on shelling efficiency (SE) and grain breakage (GB). The results indicated that at an RS of 4.90 m/s (550 rpm), the sheller achieved the highest shelling efficiency of 88.05% and a GB rate of 9.70%. Additionally, adjusting the CC to 10 mm resulted in an SE of 87.98% with a GB rate of 10.94%. Economic analysis indicated that processing a minimum of 29,803.21 kg of peanuts per year would result to a payback period of 0.82 years (approximately 9.84 months). Future research should explore additional factors affecting the feeding rate and cleaning of the propeller-based peanut shelling machine.

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Published In
Vol 29 No 10, Oct 31, 2025
How to Cite
[1]
A. Pachanawan, K. Doungpoueng, P. Muenkaew, K. Rayanasuk, and M. Srila, “Design and performance evaluation of a propeller-based peanut sheller: efficiency and Economic Feasibility Analysis”, Eng. J., vol. 29, no. 10, pp. 15-23, Oct. 2025.
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