Biofuels pp 201-228 | Cite as

Response Surface Methodology Based Multi-objective Optimization of the Performance-Emission Profile of a CI Engine Running on Ethanol in Blends with Diesel

  • Probir Kumar BoseEmail author
  • Vijay Narayan Bodkhe
  • Bishop Deb Barma
  • Rahul Banerjee
Part of the Green Energy and Technology book series (GREEN)


The present study is aimed at optimizing the effect of ethanol-diesel blends on the performance and emission characteristics of a single cylinder (indirect injection) four-stroke diesel engine at different loads. Hexane was used as a co-solvent for higher ethanol concentration while Diethyl ether (DEE) was added as an ignition improver. D-optimal was chosen as the Design of experiment methodology. Quadratic polynomial models were constructed for the desired emission-performance parameters based on experimental data through the Response Surface Methodology NOx, CO and HC were chosen as the emission output parameters while BSFC. Load and ethanol-hexane-DEE concentration in the diesel blend were chosen as the input parameters. Multi-objective optimization involving the objective of minimizing both the emission and BSFC simultaneously yielded an optimal input condition of 5% hexane and 15% DEE in blend with 40% ethanol and diesel at 95% full load operation with 15.3% absolute error in NOx, 17.1% in HC, 1.69% in CO and 3.4% in BSFC estimation with respect to actual experimental values at the calibrated test condition predicted through RSM model optimization.


Design of experiment D-optimal Desirability approach RSM performance-emission trade-off Multiobjective optimization 



The authors gratefully acknowledge the kind support of the AICTE (Govt. of India) grant under the RPS projects entitled “Development of an artificial intelligence model to simulate the performance and emission characteristics of a diesel engine operating in dual fuel mode with biodiesel and CNG under various EGR strategies” under Grant No: 8023/RID/RPS-4/(POLICY-III) (NER)/2011-12 and “An experimental study to explore the potential of biodiesel ethanol blend as an alternative fuel in diesel engine with hydrogen enrichment” under Grant No: 8023/BOR/RID/RPS(NER)-34/2010-11 which has made this study possible.


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Copyright information

© Springer Nature Singapore Pte Ltd. 2017

Authors and Affiliations

  • Probir Kumar Bose
    • 1
    Email author
  • Vijay Narayan Bodkhe
    • 2
  • Bishop Deb Barma
    • 3
  • Rahul Banerjee
    • 2
  1. 1.NSHM Knowledge CampusDurgapurIndia
  2. 2.Department of Mechanical EngineeringNational Institute of TechnologyAgartalaIndia
  3. 3.Department of Production EngineeringNational Institute of TechnologyAgartalaIndia

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