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All Journal Jurnal Simetris Journal of Mechanical Engineering Science and Technology Jurdimas (Jurnal Pengabdian Kepada Masyarakat) Royal Jurnal Teknik Mesin Jurnal Teknik Mesin Cakram Jurnal Ilmiah Teknik Mesin "MEKANIK" TRIDARMA: Pengabdian Kepada Masyarakat (PkM) JURNAL ILMIAH MAKSITEK ABDI SABHA (Jurnal Pengabdian kepada Masyarakat) Jurnal Abdimas Bina Bangsa Abdi Jurnal Publikasi
Purba, Jhon Sufriadi
Fakultas Teknik, Program Studi Teknik Mesin, Universitas HKBP Nommensen Pematangsiantar
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KAJIAN EKSPERIMENTAL UNJUK KERJA KOLEKTOR UNTUK MESIN PENDINGIN SIKLUS ADSORPSI YANG DIGERAKKAN ENERGI MATAHARI Purba, Jhon Sufriadi; Suhada, Khairul; Wijaya, Darma
MEKANIK: Jurnal Ilmiah Teknik Mesin Vol 5 No 2 (2019): November 2019
Publisher : Jurusan Teknik Mesin, Fakultas Teknologi Industri, Institut Teknologi Medan (ITM)

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Abstract

The rapid development of the refrigeration system, along with the rapid advancement of technology. Adsorption refrigeration cycle is currently being developed, especially in developing countries. Adsorption refrigeration cycle is very environmentally friendly. One component of this is the generator cooling machine. Type of generator used is a flat plate. The area of ​​adsorber is 0.25 m2 with a slab thickness is 1 mm. In this adsorber filled with activated carbon as much as 8 kg. The temperature of the water will decrease with decreasing temperature refrigerant in the evaporator. On the afternoon of the desorption process occurs adsorber receives heat from the lights and the refrigerant will flow into the condenser and melt in the evaporator, at night adsorber is cooled by the outside environment resulting in the adsorption process, the refrigerant will evaporate from the evaporator into the condenser and adsorber will be absorbed. The results of this study are vacuum adsorber temperature to obtain the absorption refrigerant refrigerant methanol at 200 0C and the temperature thermostat produces 123.43 0C adsorber temperature and methanol as refrigerant absorbs 6.25 ml/kg. Keywords: Adsorption, desorption, generator, activated carbon, refrigeration
PEMBUATAN BIOETANOL DARI TEBU Jhon Sufriadi Purba; Jandri Fan HT Saragi
Simetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer Vol 11, No 2 (2020): JURNAL SIMETRIS VOLUME 11 NO 2 TAHUN 2020
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/simet.v11i2.5349

Abstract

Biaya yang digunakan untuk membeli bahan bakar minyak bumi semakin meningkat, hal ini belum termasuk dengan biaya lain yang dikeluarkan. Meningkatnya biaya penggunaan bahan bakar fosil dan persediaannya yang semakin terbatas menyebabkan banyak penelitian sains, teknik, dan teknologi untuk mencari sumber bahan bakar alternatif lainnya. Salah satu alternatif yang telah ditemukan adalah penggunaan bioetanol sebagai bahan bakar alternatif. Bioetanol merupakan bahan bakar yang ramah lingkungan karena terbuat dari bahan bakar nabati serta memiliki angka oktan yang lebih tinggi dibandingkan dengan bahan bakar fosil seperti premium. Salah satu tanaman yang dapat digunakan untuk menghasilkan bioetanol dari proses fermentasi dan destilasi adalah tanaman tebu. Tujuan dari penelitian ini adalah mendapatkan pengganti bahan bakar yang berasal dari bahan bakar alternatif yang dapat membantu mengurangi krisis dari bahan bakar minyak bumi, mengetahui proses pengolahan tebu menjadi bioetanol, dan mengetahui besarnya nilai oktan atau RON (Research Octane Number) pada bioetanol. Pada penelitian ini dilakukan empat kali percobaan dengan menguji komposisi masing-masing komponen pengujian dan nilai oktan yang didapatkan tiap masing-masing pengujian adalah 114, 115, 116, dan 117.
Study of Methanol and Ethanol Absorption on Vacuum Temperature of Adsorption Cooling Machine Adsorption Cycle Jhon Sufriadi Purba; Jandri Fan HT Saragi
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 5, No 2 (2021)
Publisher : Universitas Negeri Malang

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Abstract

Cooling machines are currently being used more and more in accordance with technological advances and increasing living standards. Common uses are for preserving food, air conditioning, cooling beverages, for making ice cubes, and others. The need for cooling systems in remote areas for various needs such as preservation or storage of food ingredients is felt to be increasing, while the existing conventional cooling systems cannot necessarily be used because not all remote areas have electricity networks, so a simple adsorption cooling system is an alternative for solving problems. cooling system needs in remote areas like this. The purpose of this study was to obtain the optimum vacuum temperature in an adsorption cooler using activated carbon as adsorbent and methanol and ethanol as adsorbate. In this study using the experimental method by analyzing the testing and data processing of methanol and ethanol. The results of this study indicate that the vacuum absorber temperature of the refrigerant (methanol) gets the maximum temperature: 123.53oC on a thermostat with a temperature of 200oC, it can absorb methanol as much as 6.35 ml/kg and produce a water temperature of 9.12oC. Meanwhile, the absorber vacuum temperature for refrigerant (Ethanol) has a maximum temperature of: 123,26oC, on a thermostat with a temperature of 200oC, it can absorb ethanol as much as 6.35 ml/kg and produce a water temperature of 11,79oC. 
UNJUK KERJA SOLARCOOKER TYPE PARABOLIC DENGAN DIAMETER 100 CM TINGGI 50 CM JHON SUFRIADI PURBA
JURNAL ILMIAH MAKSITEK Vol 5 No 2 (2020): JURNAL ILMIAH MAKSITEK
Publisher : LP2MTBM MAKARIOZ

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Abstract

Has been done research on "The work of Solar cooker Type Parabolic with diameter 100 cm height 50 cm" This researchaims to know the performance of a Solar cooker with the experimental method of dish collector put in place exposed to directsunlight with water mass in containers 1 liter in 3 days observation. Observations were carried out with an interval of 10minutes from 10.00 WIB to 16.00 WIB. The research results for the 1liter mass reaches the highest temperature of 106 0C atthe average radiation intensity of the sun 492 W/m2. Besarya solar radiation intensity affects the thermal conversion systemto the focus field of the pan as a cooking container, the higher the radiation intensity then the higher the temperature of thepot cooker.
Pemanfaatan Arus Air untuk Pembangkit Listrik Tenaga Micro Hidro Jandri Fan HT Saragi; Jhon Sufriadi Purba
ABDI SABHA (Jurnal Pengabdian kepada Masyarakat) Vol. 2 No. 3 (2021): Oktober
Publisher : CERED Indonesia Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53695/jas.v2i3.466

Abstract

One of the problems being faced in several regions in Indonesia is the source of electrical energy. The demand for electricity from year to year has increased. The development of free energy technology needs to be developed to cover the rapidly increasing demand for electricity. One that can be developed is micro-hydro power plant technology that utilizes water flow as a source of electricity. To make a micro hydro power plant, it is necessary to do research on the available discharge and how much energy and power is generated at that location. The purpose of this community service activity is to help the community find out the potential of river flows in Toba Village, South Siantar District, Pematangsiantar City in its utilization for micro hydro power plants. The method of implementing the activity is Head observation (falling height), river flow velocity, river width, and river flow depth. From the results of observations and measurements of discharge at the service location, it is known that the head (fall height) is 0.5 meters, the river flow speed is 0.74 m/s, the river width is 6.5 meters and the river flow depth is 0.3 meters so that an empirical calculation of the generator discharge is obtained at 1.433 m3/sec., and the power that can be generated is 7.08 kW.
Kajian Saluran Sungai Akibat Gesekan Limbah pada Aliran Sungai di Bantaran Sungai Kelurahan Toba, Kec. Siantar Selatan Jhon Sufriadi Purba; Jandri Fan HT Saragi
ABDI SABHA (Jurnal Pengabdian kepada Masyarakat) Vol. 2 No. 3 (2021): Oktober
Publisher : CERED Indonesia Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53695/jas.v2i3.473

Abstract

River pollution is the entry of various substances and non-biodegradable objects that result in contaminated water and loss of function. Besides being a source of various diseases, water pollution also causes flooding. Protecting the river is the same as maintaining survival in the future. Rivers have been the most important part of human life since ancient times. In human evolution, rivers and lakes played an unimaginable role. Rivers are not only important for animals and birds to live, but are also a major source of drinking water. And their environmental value, economic value, and spiritual value touch everyone in the world. In India, people at one time even worshiped rivers as life-giving gods and goddesses. The reason is that every time we search for life, we look for a drop of water first. Rivers carry water and nutrients to areas around the earth. They play a very important role in the water cycle, acting as drainage channels for surface water. Rivers flow almost 75% of the earth's land surface.
SOSIALISASI PENTINGNYA PLANKTON PADA BUDIDAYA IKAN DI DANAU TOBA Herna Febrianty Sianipar; Tambos Sianturi; Jhon Sufriadi Purba
Jurnal Abdimas Bina Bangsa Vol. 3 No. 1 (2022): Jurnal Abdimas Bina Bangsa
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (177.629 KB) | DOI: 10.46306/jabb.v3i1.149

Abstract

This service aims to provide information on the introduction of the importance of the existence of plankton in aquaculture in Lake Toba. This service has been carried out in Parapat, Simalungun Regency with the method of extension and material discussion (exposure and question and answer). The results of this dedication show that many residents and owners of floating fish cages do not understand the role of plankton in fish farming, and not many know the types of plankton. From this dedication, it can be seen that the public interest and owners of floating net cages are very high, and they become more aware of the importance of the existence of plankton in aquaculture in Lake Toba
Sosialisasi Penggunaan Kabel Sesuai SNI Untuk Instalasi Listrik Rumah Tinggal Di Nagori Pagar Pinang Kecamatan Jorlang Hataran Kabupaten Simalungun Tambos August Sianturi; Jhon Sufriadi Purba; Winfrontstein Naibaho
TRIDARMA: Pengabdian Kepada Masyarakat (PkM) Vol. 4 No. 2 (2021): TRIDARMA: Pengabdian Kepada Masyarakat (PkM)
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/abdimas.v4i2.1547

Abstract

Energi Listrik adalah energi yang dibangkitkan dari generator kemudian disalurkan melalui Transmisi dan Gardu induk, kemudian disalurkan melalui jaringan Distribusi dan sampai ke konsumen rumah tinggal perkantoran, maupun industri. Tegangan yang di distribuskan sampai ke rumah tangga dengan tegangan yang diterima berkisar 220 Volt, dengan instalasi rumah tangga yang terpasangan beberapa peralatan rumah tangga. Instalasi listrik rumah tinggal yang baik terdiri dari sakelar dan stop kontak yang terhubung ke peralatan listrik. Instalasi listrik rumah tangga terdiri dari KWH meter, MCB, Sakelar peralatan rumah tangga (lampu, pompa) dan Stop Kontak.
Analisis Thermal Terhadap Putaran Fan (Rpm) Pada Mesin Pengering Kakao Kapasitas 2 Kg Menggunakan Panel Surya Ferby Dial Sugianto Sinaga; Jhon Sufriadi Purba; Winfrontstein Naibaho
Jurnal Teknik Mesin Vol 15 No 2 (2022): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jtm.15.2.956

Abstract

Cocoa (Theobroma cacao L) is a plant originating from South America. Indonesia has two types of cocoa grown, namely noble cocoa (edel) and bulk cocoa, for better quality cocoa is bulk cocoa. The part of cocoa that is used is the seeds that have been dried and then processed into cocoa powder. Cocoa beans that have been harvested are fermented so that they can be sold by cocoa through testing can be seen using tables and graphs in the development of the test every hour. The heat transfer in this test is conduction and convection. The results of the first test using a variation of 6 heater elements obtained data from 2000gram wet cocoa to 1100gram dry cocoa. This test got the highest temperature of 39.50C for 11 hours. The second test of variations with 6 heater elements and an additional fan got the highest temperature of 41.50C for 10 hours with cocoa after testing 1150gram. The second test found cocoa with the best level of AA because there were 84 dry beans in 100gram, the color was dry brown and the drying time was faster than the traditional method, such as farmers usually requiring 5 to 7 days of drying.
Analisa Perbandingan Laju Pengeringan Biji Kakao Dengan Menggunakan Energi Listrik Dan Tenaga Surya Romsin Hiras Naibaho; Jhon Sufriadi Purba; Winfrontstein Naibaho
Jurnal Teknik Mesin Vol 15 No 2 (2022): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jtm.15.2.957

Abstract

Technological and economic developments are directly proportional to the industrial sector, especially in countries that are still developing. The food industry is one of them. Chocolate is one of the growing foods industri. The research on Comparison of the Drying Rate of Cocoa Beans Using a Dryer with Electricity and Solar Energy was carried out using an experimental method, namely with electricity coming from solar panels and then with electricity from PLN. The test aims to get a comparison of the effectiveness of electrical energy against solar panels. Cocoa beans that will be tested for drying before must be fermented first. The purpose of this test is to determine the drying time in a cocoa bean dryer with electricity and solar panels. This test uses the drying method using solar panels and uses electricity. Heat transfer in this test is conduction and convection. Test results are carried out in two stages. the first stage using electrical energy with the result of drying using cocoa beans weighing 2000 grams with a 271watt heater with the highest temperature of 43.6 0C can reduce the water content by around 59% from the mass of the 2000 gram sample weight of cocoa to 812 grams. The second stage is using solar panels where the drying process is divided into 2 stages, the first 8 hours with solar power and solar panels then the next stage using the help of batteries in the afternoon until evening. This stage can produce dry cocoa beans weighing 800 grams of dry cocoa beans from 2000 grams of wet cocoa beans. Thus, it can be concluded that the best drying using electric power can produce 812 grams of dry cocoa from 2000 grams of wet cocoa.
Co-Authors Amdan Hendrico Aritonang Anak Agung Gede Sugianthara Ferby Dial Sugianto Sinaga Frans Willis Siregar Handoco, Ewin Herna Febrianty Sianipar Jandri Fan HT Saragi Jandri Fan HT Saragi Mardame Pangihuta Sinaga Naibaho, Winfrontstein Niko Siburian Nofyando Simalango Ricki Kristanto Napitupulu Romsin Hiras Naibaho Sahat Sahat Sinaga, Mardame Pangihutan Suhada, Khairul Tambos Sianturi