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Multi-objective optimization of a diesel engine fueled with different fuel types containing additives using
Mehmet Çelik1, Cihan Bayındırlı2, Mina Mehregan3
1Department of Mechanical Engineering, Faculty of Engineering, Karabük University, Karabük, Turkey.
Environmental Science and Pollution Research International
|January 8, 2022
Summary
Adding hexadecane to rapeseed biodiesel significantly optimizes engine performance and reduces emissions. This study highlights rapeseed biodiesel with 12% hexadecane as the best fuel combination for cleaner diesel engine operation.
Area of Science:
- * Renewable Energy Engineering
- * Combustion Science
- * Environmental Engineering
Background:
- * Biodiesel fuels are explored as alternatives to fossil fuels due to resource depletion and environmental concerns.
- * Biodiesel's higher NOx emissions and viscosity compared to diesel necessitate the use of fuel additives for improvement.
- * Optimizing biodiesel properties is crucial for its viable application in diesel engines.
Purpose of the Study:
- * To investigate the impact of n-hexane and n-hexadecane additives on the exhaust emissions and performance of a single-cylinder diesel engine using various fuel types.
- * To determine the optimal fuel type, additive, and additive concentration for enhanced engine performance and reduced emissions.
- * To apply the grey-based Taguchi method for multi-response optimization of biodiesel fuel properties.
Main Methods:
- * Utilized the grey-based Taguchi method with an L18 orthogonal array for experimental design.
- * Investigated three fuel types: diesel, rapeseed oil biodiesel, and cottonseed oil biodiesel.
- * Evaluated two fuel additives (n-hexane, n-hexadecane) at three concentration levels (4%, 8%, 12%).
Main Results:
- * Rapeseed oil biodiesel demonstrated superior performance and emission reduction compared to cottonseed oil biodiesel and conventional diesel.
- * Hexadecane additive proved more effective than hexane in optimizing engine performance and emissions.
- * Fuel type was identified as the most significant factor influencing overall system performance and emissions.
Conclusions:
- * Rapeseed biodiesel with 12% hexadecane additive represents the optimal fuel formulation for simultaneous improvement of engine performance and reduction of exhaust emissions.
- * The grey-based Taguchi method effectively enabled multi-response optimization, confirming the reliability of the approach.
- * Findings support the use of optimized biodiesel blends as a sustainable alternative to conventional diesel fuels.
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