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Lukman Adlin Harahap
Program Studi Keteknikan Pertanian Fakultas Pertanian Universitas Sumatera Utara
Agriculture, Biological Sciences & Forestry Engineering

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Design and Construction of Asam Gelugur (Garcinia atroviridis Griff.) Slicer Alvario Kesturi; Saipul Bahri Daulay; Lukman Adlin Harahap
Jurnal Rekayasa Pangan dan Pertanian Vol 4, No 3 (2016): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

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Abstract

Asam gelugur (Garcinia atrovirdisGriff ), or asam keping  is a type of  nadir tree from Malaysia peninsula. Asam gelugur ( Garcinia atrovirdis Griff) is a dikotiledon type but without kotiledon. Asam gelugur fruit is used by people to make candied fruit, potion, and flavor.The parameters observed were effective capacity, economic value analysis. BEP, NPV and IRR. It was summarized that the effective capacity of the equipment was 708,11 kg/hour, basic costs were Rp. 16,55/kg for the first year,Rp 15,54 for the second year, Rp. 15,19 for the third year, Rp 15,03 for the fourth year, and Rp. 14,93 for the fifth year. Break event point was 20.438,74 kg/year for the first year, 11.018,63 kg/year for the second year, 7882,98 kg/year for the third year, 6317,82 kg/year for the fourth year and 5380,71 kg/year for the fifth year. Net present value was Rp. 1.317.158.537,9. Internal rate of return was 43,56 %, It means that this equipment was worthy to made. Keyword: slicer, Asam gelugur (Garcinia atroviridis Griff.)
Design and Construction of Liquid Soap Stirrer Made from Used Cooking Oil Muhammad Imam Al Hakim; Ainun Rohanah; Lukman Adlin Harahap
Jurnal Rekayasa Pangan dan Pertanian Vol 4, No 3 (2016): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

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Abstract

The process in making liquid soap from used cooking oil is an interesting thing to know. This research was held to design, construct, test, and analyze economic value of liquid soap stirrer made from used cooking oil. The parameters observed were water content, free fatty acid (FFA), alcohol insoluble part, effective capacity, yield, and economic analysis. Based on this research, it was summerized that effective capacity of this equipment was 20,26 l/hr. Yield percentage was 97,8%. Basic cost for the  first to fifth year were Rp 735,95/l, Rp 738,08/l, Rp 738,38/l, Rp 739,76/l and Rp 741,24/l. Respectively break event point was 440,53 l/year. Net present value with 7,5% rate was Rp 378.115.195 and internal rate of return was 48,36%. Keywords: liquid soap, used oil cook, effective capacity, yield, economic analysis
Modification and effect of Blade Distance on Onion Slice thickness of Mechanical Onion Slicer Hasimi Rafsanjani H.; Achwil Putra Munir; Lukman Adlin Harahap
Jurnal Rekayasa Pangan dan Pertanian Vol 4, No 3 (2016): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

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Abstract

One of the unit process is slicing. This study was aimed to examine the effect of blade distance on the effective capacities,  percentage of perfect  sliced onion and percentage of left onion at mechanical slicer.The research was conducted in November 2014 to February 2015 in the Laboratory of Agricultural Engineering, Faculty of Agriculture, University of North Sumatra, Medan, using non-factorial completely randomized design(CRD). The parameters were the effective capacity of equipment and the percentage of perfect slicer, percentage of broken materials.The results showed that the effective capacity was 29,02kg/hr, 32,99kg hr and 42,14kg/hr respectively, the percentage of unsliced onion was 4,17%,4,00% and 3,17%respectively, and percentage of left onion at the mechanical slicer was 4,33%, 4,00%, 3,00% respectively. Keywords:blade, slicing, capacity.
Test of Type of Decomposer on Compost Making from Waste of Oil Palm Fronds on The Quality of Compost Yield Reni Rhys; Lukman Adlin Harahap; Ainun Rohanah
Jurnal Rekayasa Pangan dan Pertanian Vol 4, No 3 (2016): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

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Abstract

Compost is a result  of plant waste decomposition that caused by microorganism decomposition. Therefore it needs a decomposer to fasten organic decomposition. This research was done in April until August 2015 in Soil Laboratory, Agricultural Technology Research Agency of North Sumatera and Agricultural Engineering Laboratory, Faculty of Agriculture, USU, Medan, using non factorial completely randomized design with four types of MOL, i, e, orange MOL, mango MOL, pinneapple MOL, and papaya MOL. Measured parametres were comparison of C/N, pH and yield. The results showed that there was no different effect given by orange MOL, mango MOL, pinneapple MOL, and papaya MOL in the case of C/N, pH and yield. Key words: Compost, decomposer, palm frond.
Utilization of Corncob and Tea Waste as Charcoal Briq T.Anwar Faiz; Lukman Adlin Harahap; Saipul Bahri Daulay
Jurnal Rekayasa Pangan dan Pertanian Vol 4, No 3 (2016): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

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Abstract

Briquette is one of the biomass fuels which is used as a simple, inexpensive alternative energy source. Biomass used in this research were corncob and tea waste. The aim of this research was to find out the composition of Bio-Carbon Briquette processing from corncob and tea waste and to determine the best Bio one. Testing was conducted by using a non-factorial completely randomized design with parameters of water content, density, calorific value, and ash content. The results of this research showed that the composition of the briquette materials had highly significant effect on water content, density, calorific value, and ash content. The best water content in this research was 2.89% that met Japanese, American, British and Indonesian standards. The Density value was 0.415 g/cm3 which did not meet briquettes of Japanese, America, British and Indonesian standards. The best calorific value in this research was 10052.08 cal/g that met Japanese, American, British and Indonesian standards. The best ash content value in this research was 2.83% that met Japanese, American, British and Indonesian standards. Keywords : briquette, biomass, corncob and tea waste.
Efect of Temperature on The Quality of Lemang Using Vertical Type Lemang Cooking Netty Sinaga; Saipul Bahri Daulay; Lukman Adlin Harahap
Jurnal Rekayasa Pangan dan Pertanian Vol 4, No 3 (2016): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

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Abstract

The process of lemang cooking is very simple and has some weakness that can be minimalised. The purpose of this research was to examine the effect of temperature in vertical typelemang cooking appliance. This research was carried out at Agricultural Engineering Laboratory, Faculty of Agriculture USU in April – May 2015 using non factorial randomized block design with three levels, i.e. 95oC, 100oC, and 105oC. Parameters observed were effective capacity and organoleptic values. The results showed that cooking temperature had significant effect on the organoleptic test. But had no significant effect on  the effective capacityof the appliance. Keywords: Glutinous rice, Lemang’s, glutinous rice cooker appliance.
Ropes Made from “Lidah Mertua” Leaf Fiber Detyara Imani; Lukman Adlin Harahap; Saipul Bahri Daulay
Jurnal Rekayasa Pangan dan Pertanian Vol 4, No 4 (2016): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

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Abstract

Fiber of Sansevieria has characteristics of not easily fragile, shiny, long, and good quality. This study was aimed to make and to examine the quality of rope made from “Lidah Mertua” leaf fiber (Sansevieria trifasciata laurentii). This research was conducted by literature study, spinning the rope using spinners simple tool, tensile test and parameters observation. Parameters measured were tensile strength, strain, elasticity, rope deformation, and flexing. Results of the research indicated that each substance tested with the same weight produced different string diameter. Average values of examinated ropes was 1,2 g weight, diameter was 4,26  mm, length was 34 mm, elongation was 17,2159 mm, maximum loaded was 659,2695 N, cross section was 14,31 mm2, elongation at break of tensile strength was 46,85 N/mm2, strain was 0,5063, elasticity was 92,5322 N/mm2, ropes deformation was 17,2159 mm and flexing was 50,63 %. Key words : Sansevieria, fiber ropes, natural fiber, tensile test
Design Construction of Patchouli Oil Direct Steam Octo Fandi Sinaga; Lukman Adlin Harahap; Adian Rindang
Jurnal Rekayasa Pangan dan Pertanian Vol 4, No 4 (2016): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

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Abstract

Distillation is one of the ways to take up patchouli oil that contained in the leaves, the example is leaf clovers. Leaf clovers has the high oil content with euganol that reaches of 85%. The postharvest processing’s purpose is to make the agricultural product have a higher economic value compared to the product without processed. The purpose of this research was to design, build, test and analyze the economic value of patchouli oil direct steam distillation type. The parameters observed were effective capacity and economic analysis. Based on this research, it were summarized that the effective capacity of the equipment was 13,33 ml/hour. Economic analysis, basic costs for the first to the fifth year was Rp. 1.054,77/ml, Rp. 880,48/ml, Rp. 822,67/ml, Rp. 793,82/ml and Rp. 776,55/ml. Break even point (BEP) for the first to the fifth year was 247,17 ml/year, 133,02 ml/year, 95,16 ml/year, 76,27 ml/year and 64,95 ml/year. Net present value (NPV) 6% was Rp. 12.060.105 whereas NPV 8% was Rp. 10.793.704,29 and Internal rate of return this equipment was 27,04%. Keywords : leaf clovers, distillation, machine
RANCANG BANGUN ALAT PENGUPAS KULIT TANDUK KOPI MEKANIS (Design and Construction of Coffee Bean Huller) Annisa Fatin Amran; Achwil Putra Munir; Lukman Adlin Harahap
Jurnal Rekayasa Pangan dan Pertanian Vol 5, No 1 (2017): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

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Abstract

ABSTRACT 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 working capacity, percentage of broken bean, percentage of unpeeled bean, percentage of bean left in huller and economic analysis. Based on this research, it was summarized that the working capacity of the equipment was 29,411 kg/hour, the percentage of broken bean was 12,534 %, the percentage of unpeeled bean was 5,3 % and the percentage of bean left in huller 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%. Keywords: coffee, huller, machine ABSTRAK   Pengupasan kulit tanduk kopi merupakan salah satu proses yang penting dalam menentukan kualitas biji kopi sebelum disangrai dan digiling. Penelitian ini bertujuan untuk merancang, membuat, menguji serta menganalisis nilai ekonomis alat pengupas kulit tanduk kopi mekanis. Parameter yang diamati yaitu kapasitas kerja alat, persentase biji pecah, persentase biji tidak terkupas, persentase biji tertinggal di dalam alat dan analisis ekonomi. Dari hasil penelitian diperoleh kapasitas kerja alat sebesar 29,411 kg/jam, persentase biji pecah sebesar 12,534 %, persentase biji tidak terkupas 5,3 %, persentase biji tertinggal di dalam alat 0,7 %. Analisis ekonomi, biaya pokok untuk tahun pertama sampai tahun kelima berturut-turut yaitu Rp 400,033/kg, Rp 401,118/kg, Rp 402,284/kg, Rp 403,538/kg dan Rp 404,888/kg. Nilai titik impas (BEP) untuk tahun pertama sampai tahun kelima sebanyak 3745,768 kg, 3951,157 kg, 4172,021 kg, 4409,455 kg dan  4664,963 kg. Internal rate of return (IRR) sebesar 46,47 %.   Kata kunci: kopi, alat pengupas, mesin
MODIFIKASI ALAT PENGUPAS SABUT KELAPA MEKANIS (Modification of Mechanical Coconut Fiber Peeler) Annisa Purnamasari Damanik; Achwil Putra Munir; Lukman Adlin Harahap
Jurnal Rekayasa Pangan dan Pertanian Vol 5, No 1 (2017): Jurnal Rekayasa Pangan dan Pertanian
Publisher : Universitas Sumatera Utara

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Abstract

ABSTRACT Coconut plant is a plant of life, because all its parts can be utilized to meet human needs. This study was aimed to determine the effective capacity of Mechanical Coconut Fiber Peeler and its modification using human anthropometry. This research was conducted in August until Oktober 2015 in the Laboratory of Agricultural Engineering, Faculty of Agriculture, University of North Sumatra, Medan, by literature study, testing equipment and parameters observation. Parameters measured were effective capacity and economic analisis. The results showed that the highest capacity after modification was 170,61 fruits/hour and the lowest capacity before modification was 145,45 fruits/hour. The highest main cost before modification in fifth year was Rp 166,652/fruit and the lowest main cost after modification in the first year was Rp 141,268/fruit. The highest BEP before modification in the fifth year was 6.366,248 fruits and the lowest after modification in the first year was 3.713,454 fruits. The highest NPV 7,5% after modification was Rp 256.177.017,22 and the lowest NPV 7,5% before modification was Rp 195.203.600,12. The highest IRR before modification was 55,06% and the lowerst IRR after modification was 48,61%. Key words: agricultural machinery, coconut fiber, peeler. ABSTRAK Tanaman kelapa merupakan tanaman kehidupan, karena keseluruhan bagiannya dapat dimanfaatkan manusia untuk memenuhi kebutuhannya. Penelitian ini bertujuan untuk menentukan kapasitas efektif alat pengupas sabut kelapa mekanis dan memodifikasi alat pengupas sabut kelapa mekanis dengan analisis antropometri manusia. Penelitian ini dilakukan pada bulan Agustus hingga Oktober 2015 di Laboratorium Keteknikan Pertanian, Fakultas Pertanian Universitas Sumatera Utara, Medan dengan cara studi literatur, pengujian alat dan pengamatan parameter. Parameter yang diamati adalah kapasitas efektif alat dan analisis ekonomi. Hasil penelitian menunjukkan bahwa kapasitas tertinggi pada alat setelah modifikasi yaitu 170,61 buah/jam dan kapasitas terendah terdapat pada alat sebelum modifikasi yaitu 145,45 buah/jam. Biaya pokok tertinggi pada alat sebelum modifikasi pada tahun kelima sebesar Rp 166,652/buah dan terendah pada alat setelah modifikasi pada tahun pertama sebesar Rp 141,268/buah. BEP tertinggi pada alat sebelum modifikasi pada tahun kelima sebesar 6.366,248 buah dan terendah pada alat setelah modifikasi pada tahun pertama sebesar 3.713,454 buah. NPV 7,5% tertinggi pada alat setelah modifikasi sebesar Rp 256.177.017,22 dan terendah pada alat sebelum modifikasi sebesar Rp 195.203.600,12. IRR tertinggi pada alat sebelum modifikasi sebesar 55,06% dan terendah pada alat setelah modifikasi sebesar 48,61%.   Kata Kunci: alat dan mesin pertanian, sabut kelapa, pengupas
Co-Authors Achwil Putra Munir Achwil Putra Munir Achwil Putra Munir Achwil Putra Munir Achwil Putra Munir Achwil Putra Munir Achwil Putra Munir Achwil Putra Munir Achwil Putra Munir Adian Rindang Agri Dayanti Sipayung Agus Roy Butar-Butar Ahmad Rifai Siregar Ainun Rohana Ainun Rohana Ainun Rohana Ainun Rohanah Albert Trimitra Siahaan Aldilla Pratiwi Tanjung Alex Candra Pardede Alvario Kesturi Annisa Fatin Amran Ari Budiarto Bancin Arta Naomi Cristiana Simanjuntak Asri Bernitzky Saragi Asrita Yohana Siallagan Damanik, Annisa Purnamasari Dara Dhayanara Detyara Imani Devi Yundri Barus Doli Garesya Agian Domen Sitohang Dwi Ayu Febrina Edi Susanto Edo Yohansen Dalimunthe Fahmil Ikhsan Hidayat Friani Parsaulian Gunawan Sinaga Hamjah Dalimunthe Handyman M. Waruwu Hasimi Rafsanjani H. Hisyam Pahlevi Ido Bonar Sinaga Imade Silaban Indah Purnama Harahap Indi Sajiwo Ivan Yolessa Butar-Butar Johanes Mikael Simanulang Karsadi Warman Karten Malau Kerub Henpra Gokniel Lasnita Manurung Liztia Dwitami Adriani Luthfan Minhal Mardohar Aritonang Maria Evatri Tampubolon Michael Samuel Mitra Junetris Tarigan Muhammad Fajar Arfani Muhammad Imam Al Hakim Muhammad Yusuf Mustafa Parlindungan Nazif Ichwan Netty Sinaga Noviyana Tanjung Octo Fandi Sinaga Olan Samuel K. Sinaga Putri Candra Ayu Reni Rhys Rian Hidayat Lubis Rinal Arnando Rizki Aminullah Lubis Saipul Bahri Daulay Sariani Sariani Sarip Muda Siregar Shella Kairunisa Stephanus K. Suci Hasti Sulastri Panggabean Sulastri Panggabean Sulastri Panggabean Sulastri Panggaben Sumono Sumono Sumono Sumono Sumono Sumono Suryadi Suryadi Swastika Nusantari Syahnan Riady Nasution T.Anwar Faiz Tantry Meilany Siregar Tarida Lestari Lumbangaol Tri Ayu Purnamasari Willian Putra Marbun Wilson Lapiga Ginting Yoga Purnama Noor Zulhakki Zulhakki