Article Per Year (5 Year)
p-Index From 2021 - 2026
1.704
P-Index
This Author published in this journals
All Journal JIPTEK : Jurnal Ilmiah Pendidikan Teknik dan Kejuruan Jurnal Pendidikan Teknik Mesin Sainteknol : Jurnal Sains dan Teknologi Jurnal Rekayasa Mesin Jurnal Puruhita Jurnal Bina Desa Panthera : Jurnal Ilmiah Pendidikan Sains dan Terapan Jurnal Inovasi Mesin Journal of Mechanical Engineering Learning
Septiyanto, Angga
Unknown Affiliation
Humanities Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Engineering Environmental Science Immunology & microbiology Mathematics Mechanical Engineering Physics Social Sciences

Published : 15 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search
Journal : journal of mechanical engineering learning

 1 
Development of honda supra manual transmission system demo made in acrylic to improve students' learning outcomes at muhammadiyah 04 vocational school sukorejo Yogi Kurniawan; Naryanto , Rizqi Fitri; Septiyanto, Angga
JMEL : Journal of Mechanical Engineering Learning Vol. 14 No. 1 (2025): June
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jmel.v13.i2.21333

Abstract

Based on the results of observations at SMK Muhammadiyah 04 Sukorejo, it is known that there is still no Honda manual transmission demonstration tool which makes it difficult to understand and comprehend the material presented by the teacher, especially in the basic competency of repairing and periodically maintaining the motorcycle manual transmission system. This study aims to develop a motorcycle manual transmission demonstration learning media that is feasible and can improve student learning outcomes. This study uses the Research and Development (R&D) research method with the ADDIE model. The subjects of this study were grade 11 students of TBSM 1 SMK Muhammadiyah 04 Sukorejo. Product trials were carried out at the implementation stage using the trial stage with the One-Group Pretest-Posttest Design model. The results of the media expert assessment obtained a percentage of 82.5% and the material expert with a percentage of 86.45%. The results of the pretest stage test obtained a value with an average of 64.11 and the posttest stage obtained a value with an average of 79.00. The motorcycle manual transmission system demonstration tool is included in the "very satisfying" category based on student perceptions with a percentage of 82.5%. Based on the results of the N-gain test, the motorcycle manual transmission teaching aid was proven to be able to improve students' mastery of competencies in the moderate category (gain value of 0.414 is between 0.7 > N-gain ≥ 0.03), and based on the t-test, the results showed that the average mastery of student competencies was more than KKM 75 (Sig. Value 0.40 > 0.05).
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 A., Ayub Budhi Agus Nugroho, Agus Ahmad Roziqin, Ahmad Antoni, Dedi Ayu Dhea, Adinda Regitya B., Febrian Arif Budiman, Febrian Arif Bunyamin Bunyamin damayanti, lydia Fatimah Azzahra Fayisa, Fadhil Fitriyanto, Piyan Hadromi - Handoko, Bimo Juliyono, Jeri M. Burhan Rubai Wijaya Manfa'at, Manfa'at muhammad riyadi, muhammad riyadi Musyono, Ari Dwi Nur Indriawan Naryanto , Rizqi Fitri Parmawati, Vitrianti Della Putra, Ni’mal Maula Rizqi Fitri Naryanto Rohman, Shohihatur Setiadi, Rizki Sonika Maulana Sudiyono Sudiyono Surip Surip Suwadi Suwadi Suwahyo - Yogi Kurniawan