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All Journal Surya Teknika: Jurnal Ilmiah Teknik Mesin
Towijaya Towijaya
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Aerospace Engineering Automotive Engineering Control & Systems Engineering Energy Industrial & Manufacturing Engineering Transportation

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PENGARUH CAMPURAN ETANOL PADA PREMIUM TERHADAP EMISI GAS BUANG PADA SEPEDA MOTOR HONDA MEGAPRO 160 CC TAHUN 2007 Ahmad Miftahul F.; Imam Prasetyo; Towijaya Towijaya
Surya Teknika Vol .4 No. 2 Oktober 2020
Publisher : Universitas Muhammadiyah Pekajangan Pekalongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.48144/suryateknika.v4i2.1306

Abstract

One of the efforts to reduce exhaust emissions in vehicles is by adding addictive substances to premium fuels, one of the addictive substances in fuel mixing is ethanol. Ethanol is a high-octane fuel and can be used to increase the octane rating in fuel, which comes from sugary plants (sucrose) such as sugar cane, palm juice, coconut juice, etc., starchy plants (flour) cassava, sweet potato, sago, corn, etc. , and cellulose (legnocellulose) plants of wood, straw, and banana stems. Because the content of ethanol has many benefits, including increasing engine performance, saving fuel use, cleaning the combustion chamber, and being able to reduce exhaust emissions, this is because in the ethanol content there is oxygen which helps combustion in the combustion chamber more completely. This study aims to reduce the value of CO and HC concentrations and increase CO . emission levels2 on motorized vehicles. This test is carried out by adding the percentage of ethanol mixture that is 15%, 30%, 45% in premium fuel with engine speed variations of 2000, 2500, 3000, 3500, and 4000 rpm. the average decrease is significant from 2000-4000 engine speed, but the largest decrease occurred at 2000 rpm for the E30% of 2.15%, namely from 4.28% to 2.13%. While the concentration of HC emissions from 2000-4000 rpm decreased, the most decreased occurred at 4000 rpm for E30%, which was 270 ppm to 149 ppm.Keywords : ethanol, exhaust emissions
PENGARUH PEMILIHAN KAMPAS REM PADA RODA DEPAN HONDA SONIC 150R Aqiem Maulana; Imam Prasetyo; Towijaya Towijaya
Surya Teknika Vol 5 No 2 Oktober 2021
Publisher : Universitas Muhammadiyah Pekajangan Pekalongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.48144/suryateknika.v5i2.1336

Abstract

Brakes are an important element in a vehicle that serves to reduce and stop the vehicle, allow the vehicle to park in an uneven place and a tool that ensures the safety and security of the driver. One of the important components of the brake system is the brake lining. People are often confused in choosing brake pads. The purpose of this study was to determine the effect of local product brake lining grades, genuine parts, and racing on the braking distance and time and which brake lining is better to use. This test was carried out by testing the front brake braking on a flat and straight road on a Honda Sonic 150r with a brake lever pressure of 3 kg at every speed of 30km/hour, 40km/hour, 50km/hour, and 60km/hour by testing 3 times on each canvas. brakes and speed. The test results show that racing grade brake linings are the best to use.Keywords: brake pads, distance, time.
PENGARUH MODIFIKASI LUBANG BUANG TERHADAP DAYA DAN TORSI PADA SEPEDA MOTOR 2 TAK Muhammad Hadi Al-Rasyid; Khoirul Anam; Towijaya Towijaya
Surya Teknika Vol 6 No 1 April 2022
Publisher : Universitas Muhammadiyah Pekajangan Pekalongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.48144/suryateknika.v6i1.1337

Abstract

Gasoline engine is one type of internal combustion engine that is widely used as a source of power for vehicles. Gasoline engines produce power from the combustion of fuel in the cylinders. In line with the development of science and technology, there are many improvements and developments of components to add power and torque. The purpose of this study was to determine the effect of modified exhaust cylinder block on power and torque on a 2 stroke Yamaha f1zr motorcycle with a modified exhaust hole height of 26 mm and a standard exhaust hole of 34 mm with a dynotest test to determine power and torque from 2500 RPM to RPM. 8000. The test results show that the maximum power at the modified exhaust hole is 12.5 HP at 7750 RPM while the standard exhaust port gets a maximum power of 11.5 HP at 7750 RPM. For the modified exhaust hole maximum torque is 11.36 Nm at 7750 RPM rotation while the standard exhaust hole obtains a maximum torque of 10.06 Nm at 7750 RPM rotation.Keywords: Power, torque, exhaust hole
PENGARUH PERUBAHAN POROS ENGKOL STANDAR DAN MODIFIKASI PADA DAYA DAN TORSI TERHADAP PERFORMA MESIN SEPEDA MOTOR HONDA GL-100 MENGGUNAKAN BAHAN BAKAR PERTAMAX PLUS Henry Pradana; Khoirul Anam; Towijaya Towijaya
Surya Teknika: Jurnal Ilmiah Teknik Mesin Vol 6 No 2 Oktober 2022
Publisher : Surya Teknika: Jurnal Ilmiah Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Technological developments that continue to develop today are increasingly making it easier for humans to do their jobs, as well as what is happening in the automotive world with the new technology it will make it easier for mechanics to do their jobs because of demands from consumers or the desires of the mechanics themselves who continue to grow to know the influence of standard crankshaft changes and modifications. crankshaft crf230 xiema diablo on power and torque on a motorcycle honda gl-100. This test was carried out using a dynotest tool, the effect of changing the standard crankshaft and modifications on power and torque on a motorcycle honda gl-100 using Pertamax Plus fuel with the result 25.7 Hp at engine speed is 8193Rpm, while the maximum torque results is 22.56 Nm at engine speed of 8979 Nm.Keywords: Crankshaft, Power and Torque
PEMBANGKIT ENERGI PADA KNALPOT MOTOR 4 LANGKAH MENGGUNAKAN TERMOELEKTRIK GENERATOR Syadan Arrassyid; Khoirul Anam; Towijaya Towijaya
Surya Teknika Vol 6 No 2 Oktober 2022
Publisher : Universitas Muhammadiyah Pekajangan Pekalongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.48144/suryateknika.v6i2.1351

Abstract

Resources to produce energy is one of the increasing needs of society. So that there is an imbalance of load growth with the addition of power plants which will cause an energy deficit or an electrical energy crisis. There have been many studies on alternative energy power plants, one of which is the use of waste heat by using a thermoelectric generator. In this study, a thermoelectric power plant was tested by utilizing motorcycle exhaust heat for charging AAA batteries. When testing the output search, it was found that the highest current in a parallel circuit with 4 thermoelectrics is 104.4 mA and the highest voltage in a series circuit with 4 thermoelectrics is 0.83 V. Then, a AAA battery charging test is carried out using a 4 thermoelectric series circuit. From the results of the battery charging test, it was found that the battery voltage increased over the charging time period from the original 0.08 V to 1.05 V at the end of the charging time period. the current flowing in the circuit during the first 10 minutes is 48.2 mA, at the 20th minute it is 65.5 mA, at the 30th minute it reaches 91.2.Keywords: thermoelectric, energy generation, battery charging
Co-Authors Ahmad Miftahul F. Aqiem Maulana Henry Pradana Imam Prasetyo Khoirul Anam Muhammad Hadi Al-Rasyid Syadan Arrassyid