Herald Kam G. Hernando
Department of Agricultural and Biosystems Engineering, College of Engineering, Central Luzon State, Philippines
Publications
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Review Article
Optimization and Evaluation of an Impact-Type Cacao Bean Huller: A Design and Fabrication Approach
Author(s): Joseph G. Bravo Jr, Mylene C. Echanique, Angelica G. Laureano, Viverly B. Solaina, Jennyfer D. Rabanera and Herald Kam G. Hernando*
Purpose: This study aimed to develop an impact-type cacao bean hulling machine and evaluate its performance in terms of input capacity, hulling capacity, hulling efficiency, nib recovery, large nib recovery, purity, noise level, and power consumption. Methods: The machine was tested at three tangential velocities in the cracking mechanism (40 m/s, 47 m/s, and 54 m/s) and three air volumes in the winnowing mechanism (41 m3/hr, 45 m3/hr, and 49 m3/hr). Data were analyzed using a Completely Randomized Design-Two Factorial and comparisons among means were performed using Statistical Tool for Agricultural Research (STAR) software. Results: The tangential speed significantly affected all parameters except purity and noise level, while air volume significantly influenced hulling efficiency, nib recovery, la.. Read More»