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All Journal ROTOR: JURNAL ILMIAH TEKNIK MESIN Majalah Ilmiah MOMENTUM Scientific Journal of Mechanical Engineering Kinematika Accurate: Journal of Mechanical Engineering and Science Abdi Masya
Imam Prasetyo
Program Studi Teknik Mesin Fakultas Teknik Dan Ilmu Komputer Universitas Muhammadiyah Pekajangan Pekalongan.
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Education Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Other

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PERBANDINGAN EMISI GAS BUANG MENGGUNAKAN BAHAN BAKAR PERTALITE DENGAN BAHAN BAKAR GAS ELPIJI PADA MESIN TRIARROWS TR200 Budiyono Budiyono; Imam Prasetyo
ROTOR Vol 13 No 1 (2020)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (302.944 KB) | DOI: 10.19184/rotor.v13i1.17629

Abstract

Indonesia is one of the countries with the third highest level of air pollution in the world. The contribution of motor vehicle exhaust emissions as the largest source of air pollution reaches 60-70%, compared to industry which only ranges between 10-15%. The purpose of this research is to find out the Comparison of Flue Gas Emissions Using Pertalite Fuel with LPG Fuels on the Tr200 Triarrows Engine , The testing place at the Mechanical Engineering Lab of the University of Muhammadiyah Pekajangan Pekalongan, the research method using descriptive data analysis methods and as a dependent variable CO and HC flue gas and independent variables are 2500 rpm, 3000 rpm, 3500, 4000 rpm, 4500 rpm and 5000 rpm. Tests were conducted to determine the value of exhaust emissions on pertalite fuel and LPG gas fuel on the Triarrows Tr200 Generator. From the results of the study it was found that some significant decreases in the value of CO gas emission occurred at 3500 rpm - 5000 rpm which is the concentration decreased by 7.97% from 8.07% to 0.1% at 3500 rpm. While the concentration of HC gas emissions which is very significant at 2500 rpm - 5000 rpm which is the value of concentration decreased by 3945 ppm from 4412 ppm to 467 ppm at 3000 rpm. Keywords: Generator, Pertalite, Flue Gas Emissions, CO, HC
THE EFFECT OF ADDITION OF ESSENTIAL OIL FROM CEREH LEAVES TO PERTALITE FUEL ON EMISSIONS OF WASTE GAS Imam Prasetyo Imam; M. Arieq Nasabi
Scientific Journal of Mechanical Engineering Kinematika Vol 5 No 2 (2020): SJME Kinematika Desember 2020
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v5i2.182

Abstract

Essential oils are volatile compounds at room temperature derived from aromatic plants (such as vetiver, cloves, lemongrass, nutmeg, cananga, cinnamon) because the content of these essential oils has many benefits, including improving engine performance, cleaning fuel injectors, reduce the deposition of organic compounds in the combustion chamber, and can save fuel consumption and reduce exhaust emissions. The purpose of this study was to determine how much influence the addition of essential oil to pertalite fuel to reduce the concentration of CO and HC and increase CO2 levels in motorized vehicles. This test was carried out by adding the percentage of essential oil mixing as much as 6 ml, 12 ml, and 18 ml on pertalite fuel with engine speed variations of 1000, 1500, 2000, 2500, and 3000 rpm. Based on the test results, it was found that several significant decreases in the emission concentration value of CO levels occurred at the engine speed of 2000 rpm - 3000 rpm. The percentage of essential oil 12 ml is down by 0.30% from 1.02% to 0.72% at 3000 rpm engine speed. While the concentration of emission levels of HC from engine speed of 1500 rpm - 3000 rpm has decreased significantly, at 3000 rpm engine speed for 12 ml of essential oil percentage decreased by 30 ppm from 185 ppm to 155 ppm.
THE EFFECT OF REAR SPROCKET SIZE VARIATION ON POWER AND TORQUE ON YAMAHA VIXION MOTORCYCLES IN 2015 Yoyo Saputro; Imam Prasetyo; Muhammad Thomi Nadhief
Scientific Journal of Mechanical Engineering Kinematika Vol 6 No 1 (2021): SJME Kinematika Juni 2021
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v6i1.184

Abstract

Motorcycles are equipped with a power transfer system that is able to bridge the engine output (engine power and torque) with the demands of road conditions, the sprocket is the last part of the power transfer system, because the sprocket is the part that transmits the engine power to the rear wheels through the chain. Previous researchers changed the size of the sprocket with a sprocket eye larger or 2 points smaller than the standard sprocket, while in this study replaced the rear sprocket with a large number of eyes and 4 points smaller than the standard sprocket. The purpose of this study was to determine the effect of variations in rear sprocket size on power and torque on the 2015 Vixion motor. This study used the data collection method from the daynote test using a dynamometer. The test results are the effect of variations in sprocket sizes 43T, 39T, and 47T resulting in an increase in power and the most optimal torque on the sprocket size 47T with a maximum power data of 16.1 HP, and torque data obtained with sprocket size 47T produces a maximum torque of 14.42 Nm. due to the large number of sprockets and the shorter distance between the front and rear sprockets.
Penggunaan Catalytic Converter dari Bahan Kuningan dengan Ketebalan 0,2 mm Terhadap Emisi Gas Buang Kendaraan Pada Motor 2 Tak Imam Prasetyo; Muhammad Fahrurrozi
Accurate: Journal of Mechanical Engineering and Science Vol. 1 No. 2 (2020): October 2020
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/accurate.v1i2.284

Abstract

In reducing the remaining harmful exhaust emissions of motorcycles, one of them is by improving the quality of fuel and vehicle technology so that the combustion becomes better and more optimal, then the second way is to process exhaust gas through an exhaust emission controller. Catalytic Converter is a device that is installed in the exhaust channel of vehicle which has function to reduce the residual emissions from motorized combustion gases. The purpose of this study was to determine the effect of using a catalytic converter made of brass with a thickness of 0.2 mm to reduce levels of CO and HC in motorized vehicles. Tests were carried out by using a gas analyzer to determine the value of CO and HC concentrations. The exhaust emission test is carried out in two stages, the exhaust emission test with a standard exhaust and exhaust gas emission test with a catalytic converter with the variations of engine speed of 1500 rpm, 2000 rpm, 2500 rpm, 3000 rpm, 3500 rpm, 4000 rpm. From the research results, it was found that the effect of using a catalytic converter made of brass with a thickness of 0.2 mm with a fin model the most effective decreased on exhaust emission levels was at 1500 rpm, the CO value decreased by 1.82% from 3.96% to 2.14%. and HC value fell 4,412 ppm from 9,999 ppm down to 5,587 ppm.
Perbaikan Poros Turbin dan Bearing pada PLTMH Desa Mendolo Lebakbarang Kabupaten Pekalongan T Towijaya; Imam Prasetyo
Abdi Masya Vol 7 No 1
Publisher : Pusat Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52561/abdimasya.v7i1.672

Abstract

This community service project was conducted at the Micro-Hydro Power Plant (MHPP) in Mendolo Village, Lebakbarang Subdistrict, Pekalongan Regency. The activity focused on repairing the turbine shaft and replacing worn bearings to restore optimal operation. The turbine shaft showed significant wear, reducing efficiency and potentially causing excessive vibration. To address this, worn surfaces were welded and re-machined to standard dimensions. Bearings were replaced due to abnormal noise caused by rolling element damage, which posed a risk of further system failure. The process involved inspection, equipment preparation, repair execution, and performance testing. Results indicated improved turbine performance, reduced vibration, and elimination of abnormal noise, enhancing the reliability and service life of the MHPP. This work contributes to the sustainability of electricity supply for the local community
Pembuatan Bioetanol Fuel Grade Ethanol (FGE) dari Singkong dengan Proses Dehidrasi Melalui Penyerapan Menggunkan Zeolit Sintesis Imam Prasetyo; T Towijaya
JURNAL ILMIAH MOMENTUM Vol 22 No 1 (2026): April
Publisher : Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36499/jim.v22i1.14694

Abstract

Bioethanol is an alcohol produced from plants using microorganisms through a fermentation process. Bioethanol itself is an attractive alternative energy source to develop because it is reported in Indonesia and is renewable. Currently, ethanol is widely used. In addition to being used as a fuel mixture, ethanol is also used in the industrial world as a solvent and as a raw material for other chemical industries, such as the production of ethyl acetate. Therefore, bioethanol may be a potential alternative fuel, and much research is being conducted to develop this fuel. This research aims to produce bioethanol fuel grade (FGE) from cassava raw materials through fermentation, distillation, and dehydration using zeolite synthesis. Cassava raw materials were chosen because of their high starch content and abundant availability in Indonesia. The research process included material preparation, fermentation with yeast, distillation at 78°C, and purification through dehydration. The results showed that the ethanol content of the distillate reached 92–95%, and after the dehydration process increased to 99.8%, meeting Fuel Grade Ethanol (FGE) standards. The use of synthetic zeolite has proven to be efficient, environmentally friendly, and regenerable. These results support efforts to develop sustainable renewable energy and reduce dependence on fossil fuels.
Co-Authors Budiyono Budiyono M. Arieq Nasabi Muhammad Fahrurrozi Muhammad Thomi Nadhief T Towijaya T Towijaya Yoyo Saputro