PERFORMANCE COFFEE BEAN ROTARY DRYER TO EFICIENCY AND SPESIFIC ENERGY

Zulkarnain, Zulkarnain and Yuniar, Yuniar and Syakdani, Adi (2016) PERFORMANCE COFFEE BEAN ROTARY DRYER TO EFICIENCY AND SPESIFIC ENERGY. Proceeding Forum in Research, Science, and Technology (FIRST) 2016. ISSN 2461-0739

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Abstract

Drying foodstuff is one of the most important post-harvest handling. Currently, drying method is still widely used by farmers is conventionally by using sunlight. This method have difficulty control because it depends on the weather, requires a broad place and long time. Therefore, need to designed the mechanical dryers with a large capacity, that is rotary dryer. The dryer consists of a furnace (combustion chamber) and the rotary cylinder (drying chamber) by using the media hot air from the blower. Dryer making mechanism starting from design planning, preparation tools and materials, workmanship and performance test tools. The purpose of dryer design is to determine the performance of dryer in reviewed by efficiency and specific energy consumption. Based on the results of determination temperature effect on the efficiency and specific energy consumption at performance rotary dryer, for the drying with capacity 4 kg, air flow 6,5 m/s, amount rotation 10 rpm and drying time 1,5 hour, so obtain the optimum temperature at 60ºC with percentage final moisture content 13,57% that approaching the SNI standard quality of coffee beans in Indonesian that value 12%. Dryer performance proven in optimum condition, can be viewed from the drying efficiency between 71-85% and specific energy consumption between 717.406 to 879.811 kkal/kg H2O

Item Type: Article
Uncontrolled Keywords: rotary dryer, Coffe, temperature, specific energy consumption
Subjects: T Technology > TD Environmental technology. Sanitary engineering
T Technology > TP Chemical technology
Divisions: General > Proceeding and Seminar
Depositing User: Administrator EPRINTS POLSRI
Date Deposited: 30 May 2017 06:03
Last Modified: 30 May 2017 06:03
URI: http://eprints.polsri.ac.id/id/eprint/3581

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