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Optimizing diesel engine performance and emissions with mahua biodiesel blends using taguchi methodology
G Praveen Kumar Yadav1, Din Bandhu2, Suman Chatterjee3
1Department of Mechanical Engineering, G Pulla Reddy Engineering College, Kurnool, Andhra Pradesh, India.
Plos One
|September 5, 2025
Summary
Mahua biodiesel blends in diesel engines show modest efficiency gains (2-3%) and reduced emissions. Optimized blends enhance fuel use and support sustainable alternatives, improving engine performance and environmental impact.
Area of Science:
- Sustainable Energy
- Mechanical Engineering
- Environmental Science
Background:
- Diesel engines are significant contributors to air pollution.
- Biodiesel offers a renewable alternative to petroleum diesel.
- Mahua oil is a potential feedstock for biodiesel production.
Purpose of the Study:
- To evaluate the impact of operational parameters on diesel engine performance using mahua biodiesel blends.
- To determine optimal engine settings for enhanced combustion efficiency and reduced emissions.
- To assess the viability of mahua biodiesel as a sustainable fuel supplement.
Main Methods:
- Mahua biodiesel synthesized via transesterification.
- Fuel blends created with 0-20% mahua biodiesel and 80-100% diesel.
- Engine load, biodiesel blend percentage, and engine speed systematically varied.
- Compression ratio maintained at 18:1.
Main Results:
- A 2-3% improvement in engine efficiency observed with biodiesel blends.
- Significant reductions in harmful exhaust emissions achieved.
- Optimized blends demonstrated enhanced fuel utilization.
- Mahua biodiesel blends proved effective in mitigating pollutant emissions.
Conclusions:
- Mahua biodiesel is a viable and eco-friendly supplement to petroleum diesel.
- Optimized blends offer dual benefits of improved engine performance and reduced environmental pollution.
- Findings support the transition towards sustainable fuel alternatives in diesel engines.
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