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Published on: January 18, 2021
Overall Performance Investigation and Optimization of a Multi-fuel Operated Compression Ignition Engine Using Coupled
Sudhansu S Mishra1, Taraprasad Mohapatra2, Sudhansu Sekhar Sahoo3
1Department of Mechanical Engineering, Government College of Engineering, Keonjhar 758002, India.
This study optimized biofuel blends in a compression ignition engine, finding diesel fuel with a 12 kg load and 18:1 compression ratio yielded optimal performance. Biofuels from waste biomass offer a sustainable alternative.
Area of Science:
- * Engineering
- * Environmental Science
- * Chemistry
Background:
- * Biofuels are sustainable diesel substitutes due to low sulfur, reduced aromatics, and high oxygen content.
- * Waste biomass conversion into biofuels aids environmental sustainability and waste management.
- * Compression ignition (CI) engines are crucial for transportation and industrial applications.
Purpose of the Study:
- * To evaluate the performance and emission characteristics of a variable compression ratio (VCR) CI engine using producer gas, Calophyllum inophyllum oil, diesel, and a blend.
- * To determine the optimal operating parameters (engine load, compression ratio, fuel mode) for engine performance.
- * To apply a Taguchi-Grey relational analysis for optimizing overall output responses.
Main Methods:
- * Experimental evaluation of engine performance (Brake Thermal Efficiency - BTE) and emissions (CO, HC, NOx, opacity).
- * Utilization of producer gas derived from waste biomass (leaves, branches, vegetable waste, cow dung).
- * Application of a coupled Taguchi-Grey relational analysis for multi-response optimization.
Main Results:
- * Optimal engine parameters identified as 12 kg load, 18:1 compression ratio (CR), and diesel fuel for peak performance.
- * A significant performance enhancement of 22.75% was achieved using the Grey relational grade model.
- * Detailed performance and emission data were collected across various operating conditions and fuel types.
Conclusions:
- * Diesel fuel at specific load and CR settings provides optimal performance in the tested VCR CI engine.
- * Biofuel blends, particularly those derived from waste biomass, present a viable and sustainable alternative to conventional diesel.
- * The Taguchi-Grey relational analysis effectively optimizes complex engine parameters for enhanced efficiency and performance.
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