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All Journal JPTK: Jurnal Pendidikan Teknologi dan Kejuruan Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences Jurnal Pendidikan Teknik Mesin Sainteknol : Jurnal Sains dan Teknologi SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Dinamika Journal : Pengabdian Masyarakat J-Proteksion: Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin Jurnal Puruhita QISTINA: Jurnal Multidisiplin Indonesia Panthera : Jurnal Ilmiah Pendidikan Sains dan Terapan Jurnal Inovasi Pengabdian dan Pemberdayaan Masyarakat Jurnal Abdimas Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran Jurnal Inovasi Mesin Journal of Mechanical Engineering Learning Jurnal Pendidikan Teknik Mesin
Sonika Maulana
Department Of Mechanical Engineering, Semarang State University, Semarang, Indonesia
Religion Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Journal : Journal of Mechanical Engineering Learning

 1 
The effect of additive addition to fuel with variations in preheating and water coolant on multi-cylinder diesel engine performance Faisal Abdul Aziz; Maulana, Sonika; Naryanto, Rizqi Fitri; Hidayat, Hanif
JMEL : Journal of Mechanical Engineering Learning Vol. 13 No. 2 (2024): December
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jmel.v13.i2.5076

Abstract

Diesel engines are essential for transporting heavy loads, requiring significant engine power. This study aims to evaluate the effect of adding PTT (diesel fuel conditioner) additives to Dexlite fuel, focusing on mixtures of D0, D1, and D2. Additionally, variations in fuel pre-heating and engine cooling system fluids are examined. This research employs an experimental approach with descriptive analysis. The findings indicate that the optimal torque occurs with the D2 mixture, achieving 136.57 N·m at 2267 rpm with standard coolant, 152.03 N·m at 2100 rpm with a 50%:50% fluid ratio, and 160.70 N·m at 2033 rpm with a 30%:70% fluid ratio, all without pre-heating. The optimal power values for the D2 mixture are 74.60 HP at 4600 rpm with standard fluid, 75.23 HP at 4100 rpm with a 50%:50% fluid ratio, and 78.03 HP at 4000 rpm with a 30%:70% fluid ratio, also without pre-heating. The average results show that the D1 and D2 mixtures improve torque values by 0.77% and 4.75%, respectively, and enhance power by 0.19% and 1.53% compared to pure Dexlite. In contrast, pre-heating at 50°C, 60°C, and 70°C resulted in a decrease in torque of 1.00%, 2.26%, and 3.62%, respectively, and a reduction in power of 0.56%, 2.29%, and 4.79% compared to normal temperature conditions.
Performance Testing of a Multicylinder Diesel Engine Using Antioxidant Bio-Oil Additives from Moringa Oleifera Leaf Pyrolysis Juliyono, Jeri; Maulana, Sonika; Naryanto, Rizqi Fitri; Septiyanto, Angga
JMEL : Journal of Mechanical Engineering Learning Vol. 14 No. 2 (2025): December (In Progress)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jmel.v14.i2.32271

Abstract

Crude oil reserves are steadily depleting. One viable alternative is the use of biodiesel fuel in diesel engines. However, a major drawback of biodiesel is its susceptibility to degradation due to low oxidative stability. Antioxidants are compounds that inhibit or slow down the oxidation process by preventing the formation of oxidants or reducing the propagation of free radicals. This study aims to investigate the effect of adding antioxidant additives derived from Moringa oleifera bio-oil, produced through pyrolysis, to B30 biodiesel fuel at concentrations of 0, 500, 1000, and 1500 ppm on the performance of a multicylinder diesel engine. A quantitative approach was employed using an experimental method, and data analysis was conducted using descriptive analysis. The results showed that fuel consumption decreased with the addition of Moringa oleifera antioxidants, with reductions of 5.31%, 6.66%, and 7.08% at 500 ppm, 1000 ppm, and 1500 ppm, respectively, at an engine speed of 2500 rpm. The highest torque was achieved with 1000 ppm of Moringa oleifera antioxidant at 2728 rpm, reaching 111.9 Nm (an increase of 4.48%), while the highest power output was also obtained at 1000 ppm, reaching 70.9 HP at 5100 rpm (an increase of 3.2%).
Co-Authors - Wahyudi  A., Ayub Budhi Adhi Kusumastuti Agus Nugroho, Agus Ahmad Roziqin, Ahmad Aldias Bahatmaka Amelia, Dhea Aprilia Findayani Ari Dwi Nur Indriawan Musyono Atunnisa, Rifa' B., Febrian Arif Buana, Lanang Puspa Budiman, Febrian Arif Deky Aji Suseno, Deky Aji Dony Hidayat Al-Janan Dwi Widjanarko Emyu, Dalnius Fahmi, Fiqri Fadillah Fahrur Rozi Faisal Abdul Aziz Fayisa, Fadhil Fitriyana, Deni Fajar Ghyferi, Andi Abdullah Heri Yudiono Hidayat, Hanif Hidayat, Indra Nurul Huda, Alfin Miftakhul Irsandi, Ridho Fajar Juhadi Juhadi Juliyono, Jeri Kamis, Arasinah Karnowo - Karsan Karsan M. Burhan Rubai Wijaya M. Khumaedi Marlangen, Retno Murdani Niken Subekti Nina Oktarina Novian Arjin Adinugroho Nugroho, Agus Pramono ., Pramono Putra, Ni’mal Maula Rahmat Aprianto Rifa'atunnisa, Rifa'atunnisa Rizqi Fitri Naryanto Rohman, Shohihatur Rozikin, Ahmad Samsudi Samsudin Anis Saniaturrohmah Saniaturrohmah Septiyanto, Angga Septiyanto, Angga Setiadi, Rizki Setyanto, Heru Shinta Hedy Cahyaningrum Shinta Hedy Cahyanningrum Sudiyono Sudiyono Sudiyono Sudiyono, Sudiyono Suwandi Marwoto Syafei, M. Hilman Gumelar Wahyudi Wahyudi , - Zaenal Abidin