Efisiensi Pembakaran pada Sepeda Motor Injeksi 125/150 cc yang Dipengaruhi oleh Jenis Busi dan Nilai Oktan Bahan Bakar

Muhammad Reza Pratama; Muhammad Edy Syaputra Nasution; Yesen Yonatan Hutagalung; Andi Bahar; Rahma Doni

doi:10.36312/panthera.v6i4.1581

Authors

Muhammad Reza Pratama Program Studi Pendidikan Teknik Otomotif, Fakultas Teknik, Universitas Negeri Medan, Jalan William Iskandar Ps. V, Deli Serdang, Sumatera Utara 20221, Indonesia
Muhammad Edy Syaputra Nasution Program Studi Pendidikan Teknik Otomotif, Fakultas Teknik, Universitas Negeri Medan, Jalan William Iskandar Ps. V, Deli Serdang, Sumatera Utara 20221, Indonesia
Yesen Yonatan Hutagalung Program Studi Pendidikan Teknik Otomotif, Fakultas Teknik, Universitas Negeri Medan, Jalan William Iskandar Ps. V, Deli Serdang, Sumatera Utara 20221, Indonesia
Andi Bahar Program Studi Pendidikan Teknik Otomotif, Fakultas Teknik, Universitas Negeri Medan, Jalan William Iskandar Ps. V, Deli Serdang, Sumatera Utara 20221, Indonesia
Rahma Doni Program Studi Pendidikan Teknik Otomotif, Fakultas Teknik, Universitas Negeri Medan, Jalan William Iskandar Ps. V, Deli Serdang, Sumatera Utara 20221, Indonesia

DOI:

https://doi.org/10.36312/panthera.v6i4.1581

Keywords:

Iridium Spark Plug, Combustion Efficiency, Exhaust Emissions, Octane Rating, Fuel-Injected Motorcycle

Abstract

Optimizing energy efficiency in 125/150 cc fuel-injected motorcycles requires alignment between the ignition system and fuel characteristics. This true experimental study aimed to evaluate the effects of varying spark plug types and fuel octane ratings on combustion efficiency using a 2×2 factorial design. The study combined two spark plug types (standard and iridium) with two octane levels (RON 90 and RON 92) under static conditions (idle, 3000 RPM, and 5000 RPM). Observed variables included fuel consumption, engine power, and CO and HC emissions. Test results indicated that the highest combustion efficiency (34.6%) was achieved with the iridium spark plug and RON 92 combination, a significant increase compared to the standard spark plug and RON 90 combination, which reached only 27.2%. The iridium-RON 92 combination also reduced fuel consumption by 12.4% and lowered CO emissions by 0.33%. Emission tests revealed that spark plug type and octane rating significantly influenced combustion efficiency, with the interaction between the two factors contributing 23.5%. This study offers practical implications, demonstrating that aligning ignition component materials with the appropriate octane rating can be an effective solution for enhancing engine performance while promoting environmental friendliness.

Downloads

Download data is not yet available.

References

Al Banjari, M. A. (2022). Pengaruh Penggunaan Berbagai Jenis Material Elektroda Busi terhadap Performa Mesin dan Bentuk Nyala Api pada Mesin Bensin 113 cc. Jurnal Teknik Mesin dan Pembelajaran, 5(2), 101-112. https://doi.org/10.17977/um054v5i2p101-112

Almanda, I., & Andrizal, A. (2021). Pengaruh Penggunaan Variasi Busi dan Bahan Bakar pada Sepeda Motor Matic 110 CC terhadap Torsi dan Daya. AEEJ : Journal of Automotive Engineering and Vocational Education, 2(2), 113–122. https://doi.org/10.24036/aeej.v2i2.67

Aprizal, A., Slamat, S., Rizal, Y., & Fathoni, A. (2026). Pengaruh Penggunaan Jenis Busi terhadap Emisi Gas Buang Motor Bakar 100 cc Menggunanakan Bahan Bakar Alternatif dari Limbah Plastik. Jurnal Teknik Industri Terintegrasi (JUTIN), 9(1), 559–563. https://doi.org/10.31004/jutin.v9i1.53857

Bosch GmbH, R. (2018). Bosch Automotive Handbook (10th ed.). Stuttgart: Robert Bosch GmbH.

Cahyadi, W. R., Ariyanto, S. R., Nugraha, A. S., & Putra, R. A. (2024). Pengaruh Variasi Merk Bahan Bakar, Jenis Busi, dan Tekanan Ban terhadap Performa Mesin Sepeda Motor Empat Langkah. Scientific Journal of Mechanical Engineering Kinematika, 9(1), 25–32. https://doi.org/10.20527/sjmekinematika.v9i1.268

Denso Corporation. (2021). Iridium Spark Plug Technical Information (Technical Report). Aichi: Denso Corporation.

Heywood, J. B. (2018). Internal Combustion Engine Fundamentals (2nd ed.). New York: McGraw-Hill Education.

NGK Spark Plugs. (2022). Spark Plug Basics and Technical Information (Technical Report). Nagoya: NGK Spark Plugs Co., Ltd.

PT Pertamina Patra Niaga. (2023). Laporan Tahunan 2023. Jakarta: PT Pertamina Patra Niaga.

Scherjau, D., Meyer, G., Rosc, J., Mai, T., Gschirr, A., & Wimmer, A. (2019). Erosion Processes of Electrodes – Experiments and Modeling. Wear, 428–429, 85-92. https://doi.org/10.1016/j.wear.2019.02.031

Stone, R. (2012). Introduction to Internal Combustion Engines (4th ed.). London: Palgrave Macmillan.

Wang, C., Prakash, A., Aradi, A., Cracknell, R., & Xu, H. (2017). Significance of RON and MON to a Modern DISI Engine. Fuel, 209, 172-183. https://doi.org/10.1016/j.fuel.2017.07.071

Ye, C., Xu, H., Sun, Z., Nour, M., Li, X., & Xu, M. (2020). Investigations on the Optimal Ignition Strategy of Internal Combustion Engines via Various Spark Discharge Conditions. Energy Fuels, 34(11), 14814-14821. https://doi.org/10.1021/acs.energyfuels.0c02698