Uji Diameter Puli pada Alat Pencacah Sampah Organik

Abstract

MUHAMMAD ARIEF GILANG PRATAMA: Pulley Diameter Test of Organic Waste Grater, supervised by SAIPUL BAHRI DAULAY and AINUN ROHANAH. Organic waste grater begins popular in society, either used for compost making or livestock feed. The machine was invented based on society concern for environmental issue. One of the grater was designed by Doni Apriano Purba in Agricultural Engineering Study Program, University of North Sumatra. It can be improved by testing some part of it. This research was about testing some variation of pulley diameter on organic waste grater to improve its capacity. This research had been conducted at Agricultural Engineering Laboratory Agricultural Faculty University of North Sumatra on March- April 2016 using factorial randomized block design withpulley diameters of 7, 8, and 9 inches.The observed parameters in this research were yield, percentage of materials left in appliance, and effective capacity of equipment.The results showed that pulley diameter had highly significant effect on percentage of process capacity, and had no effecton yield and percentage of materials left in appliance.From this research, it can be concluded that the best pulley diameters was 9 inches.