Energy efficiency optimization in internal combustion engines using alternative fuels
1 Department of Mechanical Engineering, Rajshahi University of Engineering &. Technology, Rajshahi, Bangladesh.
2 Department of Maintenance, United Surgical Limited, Dhaka, Bangladesh.
3 School of Business, Galgotias University, Delhi, India.
4 Farm Machinery and Postharvest Process Engineering Division, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh.
Research Article
International Journal of Scholarly Research in Engineering and Technology, 2026, 07(01), 001-018.
Article DOI: 10.56781/ijsret.2026.7.1.0011
Publication history:
Received on 08 January 2026; revised on 17 February 2026; accepted on 19 February 2026
Abstract:
The need for energy and environmental concerns are driving the demand of efficient, sustainable fuels as transportation fuels. This article is an inquiry on energy efficiency improvement in internal combustion engines using alternative fuels under the scenario of Bangladesh. A Quantitative research design was adopted, primary data were obtained from 400 respondents through a structured questionnaire developed by applying Cochran’s sample size formula. The interviewers were vehicle owners, operators, drivers, and mechanics with first hand practice in fuel consumption and engine performance. Statistical analysis was performed by SPSS and descriptive statistics were utilized to analyze trends and associations. The results show that biofuels offer good options to improve fuel economy, engine performance and reduce pollutants when compared with conventional petroleum fuels. The engine optimization strategies include appropriate tuning and maintenance which were also identified as significant factors for achieving efficiency results. However, the research also highlighted some bottlenecks, such as high conversion costs, inadequate refueling infrastructure, fuel quality variation and a shortage of qualified repairmen that may limit the widespread use. The paper finds that there is potential for alternative fuels to contribute towards sustainable transport and energy efficiency in Bangladesh. Policy support, infrastructure development, technical capacity building, and regulatory oversight are suggested to smooth the transition towards cleaner fuel technologies and sustainable environment in the long run.
Keywords:
Alternative Fuels; Energy Efficiency; Internal Combustion Engines; Engine Optimization; Sustainable Transportation; Bangladesh.
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Copyright © 2026 Author(s) retain the copyright of this article. This article is published under the terms of the Creative Commons Attribution Liscense 4.0