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Achwil Putra Munir
Program Studi Keteknikan Pertanian Fakultas Pertanian USU Medan
Agriculture, Biological Sciences & Forestry Engineering

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Journal : Jurnal Rekayasa Pangan dan Pertanian

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Performance and Operating Costs Oil Palm Fronds Chopper Machine Designed by Agricultural Mechanization Unit of North Sumatra Province Handyman M. Waruwu; Lukman Adlin Harahap; Achwil Putra Munir
Jurnal Rekayasa Pangan dan Pertanian Vol 4, No 2 (2016): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (165.732 KB)

Abstract

Chopping is one way of size reduction of solids into smaller pieces to produce solids of a certain size. Chopping with a mechanical equipment has not much been done due to lack of knowledge and limitation of existing equipment of the farmers. In fact, if it can be done can increase farmers' income. The aim of the research was to test the performance of oil palm fronds chopper machine designed by Agricultural Mechanization Unit in North Sumatra Province using oil palm fronds as a raw material and analyze its operating costs. Observed parameters were effective capacity, yield of chopping, the percentage of materials left behind, and fuel consumption of the equipment. The results showed that the effective capacity of the equipment was 287,29Kg/hour. Chopping yield was 94,2%. The percentage of materials left behind was 5,2%. Fuel consumption was 0,44 L/hour. Cost of Analysis was Rp. 53,9/Kg for the first year, Rp. 54,29/Kg for the second year, Rp. 54,48/Kg for the third year, Rp.54,79/Kg for the fourth year, and Rp. 55,12/Kg for the fifth year. BEP was 62.209 Kg in the first year, 65.862 Kg in the second year, 67.759 Kg in the third year, 70.755 Kg in the fourth year and 73.947 Kg in the fifth year. The IRR was 39,17%. Key words: chopper machine, oil palm fronds, operating costs, performance
Design of Mechanical Corn Sheller Equipment Hayado Tambunan; Achwil Putra Munir; Sumono Sumono
Jurnal Rekayasa Pangan dan Pertanian Vol 4, No 2 (2016): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (125.078 KB)

Abstract

The use of corn sheller is one of post-harvest handling to increase maize production. To support this, we need a corn sheller driven by electricity. The study was conducted with literature study and observationon corn sheller. Then design the coupling components of the equipment corn sheller. Effective capacity was115,632  kg / h. The value of the effective capacity of the equipment was larger than corn sheller driven by human power. Basic cost to be incurred in releasing corn with this tool was Rp. 78,855/kg in the 1st year, Rp. 73,474/kg in the 2nd year, Rp. 71,683/kg in the 3rd year, Rp. 70,789/kg in the 4th year, and  Rp. 70,254/kg in the 5th year. This equipment will reach break even point if it has been releasing cornat 5.645,97 kg/year. Net present value of the equipment with 6% interest rate was Rp. 127.291.705,59 which meant that the business was feasible to run. The internal rate of return was 45,02 %. Keyword : corn, equipment design, sheller
Co-Authors Ainun Rohana Anugrah Aqsra Bandi Anwar Manik Arif Rizki Tanjung Ayu Wulandari Dedi Johanes Silaen Friani Parsaulian Handyman M. Waruwu Hayado Tambunan Hotdi Briyan Jonsion Purba Lukman Adlin Harahap Saipul Bahri Daulay Sulastri Panggabean Sumono Sumono Tommi Persada Sembiring Zultix Las Risanta