Rancang Bangun Alat Pengupas Kulit Tanduk Kopi mekanis

Abstract

ANNISA FATIN AMRAN: Design and construction of coffee bean huller, supervised by ACHWIL PUTRA MUNIR and LUKMAN ADLIN HARAHAP. The hulling of coffee bean is one of important processes in affecting the quality of green beans before roasted and grinded. The purpose of this research was to design, build, test and analyze the economic value of coffee bean huller. The parameters observed were effective capacity, percentage of broken bean, percentage of unpeeled bean, percentage of lost bean and economic analysis. Based on this research, it was summarized that the effective capacity of the equipment was 29,411 kg/hour, the broken bean’s percentage was 12,534 %, the unpeeled bean’s percentage was 5,3 % and the lost bean’s percentage was 0,7 %. Economic analysis was as follows: basic costs for the first to the fifth year was Rp 400,033/kg, Rp 401,118/kg, Rp 402,284/kg, Rp 403,538/kg and Rp 404,888/kg respectively. Break even point (BEP) for the first to the fifth year was 3745,768 kg, 3951,157 kg, 4172,021 kg, 4409,455 kg and 4664,963 kg respectively. Internal rate of return (IRR) was 46,47%