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Innovative Exergy-Based Combustion Phasing Control of IC Engines
Technical Paper
2016-01-0815
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Exergy or availability is the potential of a system to do work. In this paper, an innovative exergy-based control approach is presented for Internal Combustion Engines (ICEs). An exergy model is developed for a Homogeneous Charge Compression Ignition (HCCI) engine. The exergy model is based on quantification of the Second Law of Thermodynamic (SLT) and irreversibilities which are not identified in commonly used First Law of Thermodynamics (FLT) analysis. An experimental data set for 175 different ICE operating conditions is used to construct the SLT efficiency maps. Depending on the application, two different SLT efficiency maps are generated including the applications in which work is the desired output, and the applications where Combined Power and Exhaust Exergy (CPEX) is the desired output. The sources of irreversibility and exergy loss are identified for a single cylinder Ricardo HCCI engine. Based on the SLT efficiency contour maps, an optimization algorithm is designed to determine the optimum combustion phasing at every given engine load to maximize the SLT efficiency. Application of the optimization algorithm is illustrated for tracking of combustion phasing. The results show that using the exergy-based optimal control strategy leads to an average of 5.4% fuel saving for both applications, compared to commonly used FLT based combustion control in which a fixed combustion phasing (i.e., 8 CADaTDC) is used. While a number of studies have been conducted on exergy analysis of ICEs, to the best of the authors’ knowledge, this paper is the first study undertaken to construct an exergy-based control strategy for ICEs.
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Citation
Razmara, M., Bidarvatan, M., Shahbakhti, M., and Robinett, R., "Innovative Exergy-Based Combustion Phasing Control of IC Engines," SAE Technical Paper 2016-01-0815, 2016, https://doi.org/10.4271/2016-01-0815.Also In
References
- Robinett R.D. III and Wilson D.G. “ Nonlinear Power Flow Control Design: Utilizing Exergy, Entropy, Static and Dynamic Stability, and Lyapunov Analysis ” Springer Science & Business Media 2011
- Edwards K.D. , Wagner R.M. , Briggs T.E. , and Theiss T.J. Defining Engine Efficiency Limits 17th DEER Conference Detroit, MI October 3 6 2011
- Rakopoulos C.D. and Giakoumis E.G. Second-law analyses applied to internal combustion engines operation Progress in Energy and Combustion Science 32 1 2 47 2006
- Caton , J. A Review of Investigations Using the Second Law of Thermodynamics to Study Internal-Combustion Engines SAE Technical Paper 2000-01-1081 2000 10.4271/2000-01-1081
- Saxena S. , Shah N. , Bedoya I. , and Phadke A. Understanding optimal engine operating strategies for gasoline-fueled HCCI engines using crank-angle resolved exergy analysis Applied Energy 114 155 163 2014
- Sezer I. and Bilgin A. Exergy analysis of SI engines International Journal of Exergy 5 2 204 217 2008
- Sezer I. and Bilgin A. Effects of Charge Properties on Exergy Balance in Spark Ignition Engines Fuel 112 523 530 2013
- Fatehi R. Ghahfarokhi , Khalilarya S. , and Ebrahimi R. Energy and exergy analyses of homogeneous charge compressin ignition (HCCI) engine Thermal Science 17 1 107 117 2013
- Amjad A.K. , Saray R. Khoshbakhti , Mahmoudi S.M.S. , and Rahimi A. Availability analysis of nheptane and natural gas blends combustion in HCCI engines Energy 36 12 6900 6909 2011
- Caton J.A. On the destruction of availability (exergy) due to combustion processes-with specific application to internal-combustion engines Energy 25 11 1097 1117 2000
- Endo , T. , Kawajiri , S. , Kojima , Y. , Takahashi , K. et al. Study on Maximizing Exergy in Automotive Engines SAE Technical Paper 2007-01-0257 2007 10.4271/2007-01-0257
- Yan , F. and Su , W. A Promising High Efficiency RMHCCI Combustion Proposed by Detail Kinetics Analysis of Exergy Losses SAE Technical Paper 2015-01-1751 2015 10.4271/2015-01-1751
- Yan F. and Su W. Numerical Study on Exergy Losses of n-Heptane Constant-Volume Combustion by Detailed Chemical Kinetics Energy & Fuels 28 10 6635 6643 2014
- Zhang , C. , Shu , G. , Tian , H. , Wei , H. et al. Theoretical Analysis of a Combined Thermoelectric Generator (TEG) and Dual-loop Organic Rankine Cycle (DORC) System Using for Engines' Exhaust Waste Heat Recovery SAE Technical Paper 2014-01-0670 2014 10.4271/2014-01-0670
- Ghazikhani M. , Hatami M. , Ganji D. Domiri , Gorji-Bandpy M. , Behravan A. , and Shahi G. Exergy recovery from the exhaust cooling in a DI diesel engine for BSFC reduction purposes Energy 65 44 51 2014
- Razmara M. , Maasoumy M. , Shahbakhti M. , and Robinett R.D. III Optimal exergy control of building HVAC system Applied energy 156 555 565 2015
- Razmara M. , Maasoumy M. , Shahbakhti M. , and Robinett R.D. III Exergy-Based Model Predictive Control for Building HVAC Systems American Control Conference (ACC) 1677 1682 2015
- Jain N. and Alleyne A. Exergy-based optimal control of a vapor compression system Energy Conversion and Management 92 353 365 2015
- Shahbakhti M. and Koch C.R. Characterizing the cyclic variability of ignition timing in a homogeneous charge compression ignition engine fuelled with nheptane/iso-octane blend fuels International Journal of Engine Research 9 5 361 397 2008
- Shahbakhti M. “ Modeling and Experimental Study of an HCCI Engine for Combustion Timing Control ” PhD thesis Department of Mechanical Engineering, University of Alberta 2009
- Shahbakhti M. , Lupul R. , and Koch C. R. Sensitivity analysis and modeling of HCCI auto-ignition timing Advances in Automotive Control 5 303 310 2007
- Bidarvatan M. , Shahbakhti M. , Jazayeri S.A. , and Koch C.R. Cycle-to-cycle modeling and sliding mode control of blended fuel HCCI engine Control Engineering Practice 24 79 91 2014
- Bidarvatan , M. , Shahbakhti , M. , and Jazayeri , S. Model-Based Control of Combustion Phasing in an HCCI Engine SAE Int. J. Engines 5 3 1163 1176 2012 10.4271/2012-01-1137
- Shaver G.M. , Gerdes J.C. , and Roelle M.J. Physics-based modeling and control of residual-affected HCCI engines Journal of Dynamic Systems, Measurement, and Control 131 2 2009
- Saxena , S. , Chen , J. , and Dibble , R. Maximizing Power Output in an Automotive Scale Multi-Cylinder Homogeneous Charge Compression Ignition (HCCI) Engine SAE Technical Paper 2011-01-0907 2011 10.4271/2011-01-0907
- Bengtsson J. , Strandh P. , Johansson R. , Tunestål P. , and Johansson B. Hybrid control of homogeneous charge compression ignition (HCCI) engine dynamics International Journal of Control 79 05 422 448 2006
- Burcat A. Thermochemical data for combustion calculations Combustion Chemistry 455 473 Springer 1984
- Moran M.J. “ Availability analysis: a guide to efficient energy use ” New Jersey Prentice-Hall Inc., Oxford 1982
- Heywood J.B. Internal Combustion Engine Fundamentals McGraw-Hill New York 1998
- Caton J. A. Exergy destruction during the combustion process as functions of operating and design parameters for a spark-ignition engine International Journal of Energy Research 36 3 368 384 2012
- Chang , J. , Güralp , O. , Filipi , Z. , Assanis , D. et al. New Heat Transfer Correlation for an HCCI Engine Derived from Measurements of Instantaneous Surface Heat Flux SAE Technical Paper 2004-01-2996 2004 10.4271/2004-01-2996
- Lupul R. A. W. Steady State and Transient Characterization of a HCCI Engine with Varying Octane Fuel Master’s thesis Department of Mechanical Engineering, University of Alberta 2008
- Bidarvatan , M. and Shahbakhti , M. Two-Input Two-Output Control of Blended Fuel HCCI Engines SAE Technical Paper 2013-01-1663 2013 10.4271/2013-01-1663
- Shahbakhti M. and Koch C.R. Physics Based Control Oriented Model for HCCI Combustion Timing Journal of Dynamic Systems, Measurement, and Control 132 2 2010
- Wikipedia: The Free Encyclopedia Thermoelectric Generator https://en.wikipedia.org/wiki/thermoelectric_generator 10 october 2015
- Yang , C. , Xie , H. , and Zhou , S. Efficiency Analysis of the Rankine Cycle System Used for Engine Exhaust Energy Recovery under Driving Cycle SAE Technical Paper 2014-01-0671 2014 10.4271/2014-01-0671
- Zhang , X. , Zeng , K. , Bai , S. , Zhang , Y. et al. Exhaust Recovery of Vehicle Gasoline Engine Based on Organic Rankine Cycle SAE Technical Paper 2011-01-1339 2011 10.4271/2011-01-1339