Article Per Year (5 Year)
p-Index From 2021 - 2026
0.751
P-Index
This Author published in this journals
All Journal JURNAL DINAMIKA VOKASIONAL TEKNIK MESIN Jurnal Teknik Mesin Indonesia Jurnal Teknologi dan Manajemen Journal of Mechanical Engineering Learning
Mohammad Burhan Rubai Wijaya
Universitas Negeri Semarang
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
PERFORMANCE OF SINGLE CYLINDER COMBUSTION ENGINE WITH VARIATIONS IN FUEL OCTANE NUMBER AND COMPRESSION PRESSURE Bahtiar Rahmat; Mohammad Burhan Rubai Wijaya
Jurnal Dinamika Vokasional Teknik Mesin Vol. 8 No. 1 (2023)
Publisher : Department of Mechanical Engineering Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/dinamika.v8i1.57443

Abstract

Performa dari sebuah mesin pembakaran dalam sangat dipengaruhi oleh beberapa faktor, diantaranya kualitas bahan bakar serta tekanan kompresi dari mesin. Tekanan kompresi yang tinggi dan diikuti pemilihan angka oktan bahan bakar yang sesuai, akan menghasilkan performa yang optimal. Sayangnya, hanya sedikit pengguna yang mengetahui bahwa mesin kompresi tinggi membutuhkan bahan bakar dengan angka oktan tinggi. Tujuan dari penelitian ini adalah untuk mengetahui perbedaan keluaran daya & torsi mesin pembakaran dalam satu silinder yang diberikan variasi tekanan kompresi menggunakan bahan bakar Pertamax & Pertamax Plus. Uji dynamometer dilakukan untuk mengetahui perbedaan performa mesin. Hasil penelitian menunjukkan bahwa mesin dengan tekanan kompresi (11,8 Kg/cm2) dengan bahan bakar Pertamax Plus menghasilkan keluaran daya tertinggi sebesar 7,5 KW dengan keluaran torsi tertinggi sebesar 9,6 Nm. Sedangkan mesin dengan tekanan kompresi (10 Kg/cm2) mengunakan bahan bakar Pertamax menghasilkan keluaran tenaga terendah sebesar 4,2 KW dengan keluaran torsi terendah sebesar 3,8 Nm.
Performa Mesin Silinder Tunggal dengan Variasi Kompresi dan Bahan Bakar Bahtiar Rahmat; Mohammad Burhan Rubai Wijaya
Jurnal Teknologi dan Manajemen Vol. 21 No. 2 (2023): JURNAL TEKNOLOGI DAN MANAJEMEN
Publisher : Politeknik STMI Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52330/jtm.v21i2.111

Abstract

Saat ini, produsen otomotif seperti mobil dan sepeda motor memproduksi mesin yang lebih bertenaga dan efisien. Mesin yang diproduksi ini biasanya memiliki tekanan kompresi yang tinggi untuk mencapai performa yang tinggi dan konsumsi bahan bakar yang ekonomis. Sayangnya, hanya sedikit pengguna yang mengetahui bahwa mesin kompresi tinggi membutuhkan bahan bakar dengan angka oktan tinggi. Tujuan dari penelitian ini adalah untuk mengetahui perbedaan keluaran daya & torsi mesin pembakaran dalam satu silinder yang diberikan beberapa variasi tekanan kompresi dengan menggunakan bahan bakar Pertamax Plus & Pertamax Racing. Uji dynamometer telah dilakukan untuk mengetahui perbedaan unjuk kerja mesin. Hasil penelitian menunjukkan bahwa mesin dengan tekanan kompresi tertinggi (11,8 Kg/cm2) dengan bahan bakar Pertamax Racing (RON 100) menghasilkan keluaran daya tertinggi sebesar 7,8 KW dengan keluaran torsi tertinggi sebesar 10 Nm. Sedangkan mesin dengan tekanan kompresi terendah (10 Kg/cm2) mengunakan bahan bakar Pertamax Plus (RON 95) menghasilkan keluaran tenaga terendah sebesar 4,6 KW dengan keluaran torsi terendah sebesar 4,1 Nm.
Performa motor bakar satu silinder dengan variasi oktan bahan bakar dan tekanan kompresi Bahtiar Rahmat; Mohammad Burhan Rubai Wijaya; Yuris Bahadur Wirawan; Fahmy Zuhda Bahtiar
Jurnal Teknik Mesin Indonesia Vol. 18 No. 2 (2023): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36289/jtmi.v18i2.468

Abstract

The performance of an internal combustion engine was greatly influenced by several factors, including the quality of the fuel and the compression pressure of the engine. High compression pressure, followed by the selection of the appropriate fuel octane number, would result in optimal performance. Conversely, an engine with a high compression pressure given fuel with a low octane number would produce poor performance. Unfortunately, only few users know that high compression engines require fuel with high octane numbers. The purpose of this study was to determine the difference in the power & torque output of single-cylinder combustion engine given variations in compression pressure using pertamax (RON 92) & pertamax plus (RON 95) fuel. A dynamometer test has performed to determine the difference in engine performance. The results showed that the engine with high compression pressure (11.8 kg/cm2) with RON 95 fuel produced the highest power output of 7.5 kW with the highest torque output of 9.6 Nm. While the engine with low compression pressure (10 kg/cm2) using RON 92 fuel produced the lowest power output of 4.2 kW with the lowest torque output of 3.8 Nm.
Development of an E-Jobsheet for Clutch System Overhaul Based on Flip PDF Corporate Software for Grade XI Students of SMK Negeri 3 Semarang Muhammad Khilmi Mubarok; Angga Septiyanto; Lelu Dina Apristia; Mohammad Burhan Rubai Wijaya
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.i2.29863

Abstract

This study aims to develop an e-jobsheet for manual clutch system overhaul based on Flip PDF Corporate software for Grade XI students at SMK Negeri 3 Semarang. The e-jobsheet is a digital worksheet designed to replace conventional jobsheets and was created in HTML5 format using Flip PDF Corporate software. It can be accessed via electronic devices such as smartphones or computers connected to the internet. This research follows a Research and Development  approach using the ADDIE model (Analyze, Design, Development, Implementation, and Evaluation). This study used a pre-experimental design with a one-group pretest-posttest model involving one class of students. The feasibility of the product was evaluated by media and material experts, resulting in scores of 96.87% and 89.95%, respectively, categorized as “very feasible.” The average pretest score was 60.4, while the posttest average was 86.5, with a gain of 43.21%. A paired-samples t-test showed p < 0.001, and the N-Gain score reached 0.6532, indicating a significant and effective improvement. Additionally, student response questionnaires yielded a satisfaction score of 93%, also classified as very positive student response. These findings confirm that the developed e-jobsheet is feasible and moderately effective in supporting learning outcomes.
Co-Authors Angga Septiyanto Bahtiar Rahmat Fahmy Zuhda Bahtiar Lelu Dina Apristia Muhammad Khilmi Mubarok Yuris Bahadur Wirawan