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Parametric Optimization Through Numerical Simulation of VCR Diesel Engine

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Abstract

In the present study, the Variable Compression Ratio (VCR) engine was analyzed numerically using CONVERGE™ Computational Fluid Dynamics code in order to optimize the design/operating parameters such as Compression Ratio (CR), Start of Injection (SOI) and Exhaust Gas Recirculation (EGR). VCR engine was run for 100 % load to test its performance and it was validated for standard configuration. Simulations were performed by varying the design/operating parameters such as CR (18–14), SOI (17°–26° bTDC) and EGR (0–15 %) at constant fuel injection pressure of 230 bar and speed of 1500 rpm. The effect of each of these parameters on pressure, oxides of nitrogen (NOx) and soot are presented. Finally, regression equations were developed for pressure, NOx and soot by using the simulation results. The regression equations were solved for multi objective criteria in order to reduce the NOx and soot while maintaining the baseline performance. The optimized configuration was tested for validation and found satisfactory.

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Acknowledgments

This work was supported by Centre of Excellence (COE), Centre for sustainable energy studies of Technical Education Quality Improvement Programme (TEQIP-II), India. We also would like to thank Dr. Raja Vishwanathan for helping us with proof reading.

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Authors and Affiliations

  1. NIT Warangal, Warangal, 506004, Telangana, India

    Prabhakara Rao Ganji, Aasrith Kandula, Vysyaraju Rajesh Khana Raju & Surapaneni Srinivasa Rao

  2. University of Technology, Babel, Al-Exandria, 51007, Iraq

    Al-Qarttani Abdulrahman Shakir Mahmood

Authors
  1. Prabhakara Rao Ganji
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  2. Al-Qarttani Abdulrahman Shakir Mahmood
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  3. Aasrith Kandula
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  4. Vysyaraju Rajesh Khana Raju
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  5. Surapaneni Srinivasa Rao
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Correspondence to Prabhakara Rao Ganji.

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Ganji, P.R., Mahmood, AQ.A.S., Kandula, A. et al. Parametric Optimization Through Numerical Simulation of VCR Diesel Engine. J. Inst. Eng. India Ser. C 98, 485–491 (2017). https://doi.org/10.1007/s40032-016-0298-x

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  • DOI: https://doi.org/10.1007/s40032-016-0298-x

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