![]()
Aparna Warrier
Independent Researcher
India
Abstract
The increasing environmental concerns and depletion of fossil fuel reserves have driven researchers to explore alternative fuels for diesel engines. Biodiesel blends have emerged as a promising solution due to their renewable nature and favorable combustion properties. This study investigates the impact of various biodiesel blends on brake thermal efficiency (BTE) in diesel engines. Experiments were conducted with blends of biodiesel and conventional diesel fuel at different mixing ratios (B10, B20, B30, and B50). The engine performance parameters, especially brake thermal efficiency, were measured and analyzed. Statistical analysis was performed to establish the relationship between biodiesel blend ratio and BTE. The results indicate an improvement in brake thermal efficiency for lower blend ratios, while higher blends exhibited a marginal decline due to fuel properties such as viscosity and calorific value. Simulation modeling corroborated experimental findings, enabling optimization of blend ratios for enhanced engine efficiency. This study contributes to the sustainable utilization of biodiesel as a supplementary fuel in diesel engines with an emphasis on improving brake thermal efficiency.
Keywords
Biodiesel blends, brake thermal efficiency, diesel engine, renewable fuels, engine performance.
References
- Kumar, S., et al. (2019). Performance analysis of waste cooking oil biodiesel blends in a diesel engine. Renewable Energy, 133, 1286-1295.
- Patil, V., & Ramesh, A. (2019). Effect of jatropha biodiesel blends on diesel engine brake thermal efficiency. Fuel, 263, 116664.
- Shah, A., et al. (2018). Impact of biodiesel blends on diesel engine combustion and emissions. Energy Conversion and Management, 171, 942-950.
- Singh, R., & Verma, A. (2021). CFD modeling of biodiesel combustion for performance optimization in diesel engines. Journal of Mechanical Science and Technology, 35(4), 1505-1514.
- Arunkumar, T. K., Rajasekar, E., & Murugesan, A. (2019). Performance and emission analysis of CI engine using castor biodiesel blends. Renewable Energy, 135, 1230–1240.
- Perumal, K., & Ilangkumaran, M. (2017). Performance enhancement of diesel engine using pongamia biodiesel blends and optimized injection timing. Alexandria Engineering Journal, 56(4), 365–372.
- Zener, C., Mahla, S. K., & Patel, A. (2014). Combustion characteristics of soybean biodiesel blends in a DI diesel engine. Energy Conversion and Management, 88, 697–706.
- Yesilyurt, M. K., & Aydin, K. (2018). Improving brake thermal efficiency using diethyl ether in cottonseed biodiesel blends. Energy Reports, 4, 502–510.
- Sayyed, A. J., Pandey, M., & Kachhwaha, S. (2019). Experimental analysis of dual biodiesel blends (Jatropha and Neem) on engine performance and emissions. Biofuels, 10(3), 299–308.
- Bharadwaj, C., & Reddy, G. K. (2019). Effect of rubber seed oil methyl esters on brake thermal efficiency in CI engines. Journal of the Energy Institute, 92(6), 1725–1731.