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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 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 Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Performance Testing of a Multicylinder Diesel Engine Using Antioxidant Bio-Oil Additives from Moringa Oleifera Leaf Pyrolysis Jeri Juliyono; Sonika Maulana; Rizqi Fitri Naryanto; Angga Septiyanto
JMEL : Journal of Mechanical Engineering Learning Vol. 14 No. 2 (2025): December
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%).
Use of Independent System Animal Feed Lawn Mowing Machine at Sunan Gunungjati Ba'alawi Islamic Boarding School, Gunungpati Semarang Niken Subekti; Sonika Maulana; Rifa’atunnisa Rifa’atunnisa; Juhadi Juhadi; Fahrur Rozi; Heru Setyanto
Jurnal Abdimas Vol. 28 No. 1 (2024): June 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/yta75f49

Abstract

Farmer awareness in Cottage Sunan Gunung Jati Islamic Boarding School Ba'alawi Gunungpati Semarang city for improve quality and income in the group breeder . There are breeders in that environment just make feed cattle in a way traditional without use machine , then create a livestock group to be able to process it quality feed . The technological transformation developed is improve feed quality cattle using manufacturing technology machine enumerator grass . Machine manufacturing technology enumerator grass feed cattle For increase income, How breeder get tool cutter grass in accordance with need feed and energy efficiency . Machine manufacturing enumerator grass is a new innovative technology for downstreaming products resulting from the UNNES team's research. Service Team This much needed to support energy efficiency and upgrades coffee quality . Machine manufacturing technology enumerator grass , able to increase income breeders , improve feed quality and energy efficiency . Machine manufacturing enumerator grass is a new innovative technology for downstreaming products resulting from research by the Community Service team UNNES. During the activity, mentoring and monitoring and evaluation were carried out to measure target achievement.
Co-Authors - Wahyudi  A., Ayub Budhi Agus Nugroho, Agus Ahmad Roziqin Aldias Bahatmaka Amelia, Dhea Angga Septiyanto Aprilia Findayani Arga Fernando 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 Ghyferi, Andi Abdullah Hadromi Heri Yudiono Heru Setyanto Hidayat, Hanif Hidayat, Indra Nurul Huda, Alfin Miftakhul Irsandi, Ridho Fajar Jeri Juliyono Juhadi Juhadi Karnowo - Karsan Karsan M. Burhan Rubai Wijaya M. Khumaedi Muhammad Rizal Agus Adriansyah Murdani Niken Subekti Niken Subekti Nina Oktarina Novian Arjin Adinugroho Nugroho, Agus Pramono ., Pramono Rahmat Aprianto Rifa’atunnisa Rifa’atunnisa Rizqi Fitri Naryanto Rozikin, Ahmad Samsudi 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 , -