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All Journal Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat Journal of Energy, Mechanical, Material and Manufacturing Engineering Multitek Indonesia : Jurnal Ilmiah Adimas : Jurnal Pengabdian Kepada Masyarakat KOMPUTEK
Yoyok Winardi
Universitas Muhammadiyah Ponorogo
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Mechanical Engineering Social Sciences

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PENGARUH VARIASI GAS PELINDUNG PADA TIG BRAZING ANTARA CEMENTED CARBIDE DAN BAJA KARBON TERHADAP KEKUATAN GESER DAN STRUKTUR MIKRO Muhammad Choirul Faizin; Yoyok Winardi; Nanang Suffiadi Ahmad
KOMPUTEK Vol 6, No 2 (2022): Oktober
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24269/jkt.v6i2.1478

Abstract

Dissimilar metals have found wide use in electric power generation, electronics, reactors, nuclear, petrochemical, chemical industries, civil construction, vessels, and heat exchange as well as several other industries. TIG welding (Tungsten Inert Gas Welding) is a type of electric welding that uses tungsten as the electrode material that is not consumed. Brazing is a way of joining metal materials through a heating process with an adhesive or filler material that has a melting point below the material to be combined or connected. The main objective of this study was to determine the shear strength and microstructure of the weld area that was joined by the brazing method. From the results of the shear strength test, there is a comparison of the difference in the shear stress strength. The results obtained indicate that where the shear stress test at a flow rate of 5 liters/minute of protective gas gets the highest shear stress value of 108 N/mm2, compared to the shear stress test with a gas flow rate of 10 liters/minute, the shear stress value is equal to 97 N/mm2, but at the protective gas flow rate of 15 liters/minute the lowest shear stress value was 76 N/mm2. The results of the microstructure obtained the result that the protective gas flow rate of 15 liters/minute got the lowest value due to a decrease in the amount of Si elements, resulting in the lowest shear stress value.
PENGARUH PENDINGIN AIR DAN ES TERHADAP HASIL PIROLISIS MINAK PLASTIK Bakhtiar Permana Putra; Wawan Trisnadi Putra; Fadelan Fadelan; Sudarno Sudarno; Yoyok Winardi
KOMPUTEK Vol 6, No 2 (2022): Oktober
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24269/jkt.v6i2.1477

Abstract

Plastic waste is a trend that continues to increase along with economic growth and an increase in population. Millions of tons of plastic are produced annually from low to large scale. One way to reduce plastic waste is to use the pyrolysis process. Condenser performance is influenced by several things, including condenser design. The condenser design used in this pyrolysis device is a water and ice-cooled condenser with a spiral type. The results of the pyrolysis process are then analyzed by observing the experiment directly then concluding and determining the results of the experiments that have been carried out in the form of tables and graphs to obtain comparisons. What was observed in this experiment was the effect of water and ice cooling media on the amount of plastic oil produced. Pyrolysis experiments with ice cube coolers get more plastic oil results. For the first experiment using 1000 gr PP plastic using plain water cooler, in a combustion time of 180 minutes and a reactor temperature of 2500ºC, we get 130 ml of plastic oil. The second experiment used 1000 gr PP plastic with ordinary water as a coolant mixed with ice cubes in a burning time of 180 minutes and a reactor temperature of 250ºC to get 340 ml of plastic oil. The third experiment used 1000 gr PP plastic with ice cubes as a cooler for 180 minutes of combustion and a reactor temperature of 250ºC to get 600 ml of plastic oil.
Pengaruh Jumlah Lubang Injektor Terhadap Performa Motor Yamaha New Vixion 150 CC Handika Adi Pratama; Yoyok Winardi; Kuntang Winangun
KOMPUTEK Vol 7, No 1 (2023): April
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24269/jkt.v7i1.2049

Abstract

For now the development of EFI (Electronic Fuel Injection) motorcycle engines for motorcycle engines to improve engine performance. The injector functions as a fuel sprayer inlet (intake manifold). This research was conducted to determine the effect of the number of injector holes on engine performance. The research method used was an experimental method carried out in the laboratory and using a Yamaha New Vixion 150 cc motorcycle with Pertalite fuel and using 4 hole, 6 hole and 10 hole injectors to determine the effect on its performance. This study used a Dynamometer (Dynotest) to determine the results of torque, power and the Cartec CET 210 series tool to determine the results of exhaust emissions and a measuring cup to determine the results of fuel consumption. The results showed that the maximum torque indicated on the 6-hole injector was 14.18 Nm compared to the 4-hole 13.36 Nm and 10-hole 5.83 Nm. The maximum power on the 6 hole injector is 15.18 HP compared to 4 holes 14.38 HP and 10 holes 4.80 HP. The best exhaust emissions from the 6-hole injector are CO2 12.7%, O2 6.53%, HC 428 ppm. Fuel consumption 4 holes 18.2 ml/minute, 6 holes 24.2 ml/minute, 10 holes 39.7 ml/minute. From the research it can be concluded that the 6-hole injector is a good size for the performance of the 150 cc Yamaha New Vixion motorbike. 
Co-Authors Aji Prima Wicaksono Arifin, Rizal Bakhtiar Permana Putra Didik Riyanto Fadelan Fadelan Handika Adi Pratama Indra Lesmana Kuntang Winangun Mohammad Muhsin Muhammad Choirul Faizin Munaji Munaji Nanang Suffiadi Ahmad Nanang Sufiadi Ahmad Nur Priyanto Panji Laksono Adji Sudarno, Sudarno Valla Yuntan Fauzi Romdhoni Wahyu Aditya Rohman Wawan Trisnadi Putra