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Analysis and Comparison of Typical Exhaust Gas Energy Recovery Bottoming Cycles
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 08, 2013 by SAE International in United States
Annotation ability available
Internal Combustion Engine (ICE) consumes approx. 2/3 of the oil in the word and 30-40% of the fuel combustion energy in an ICE is wasted in the form of thermal energy in the exhaust gas stream. Exhaust gas thermal energy recovery demonstrates a great potential for overall system thermal efficiency improvements and fuel saving. In this paper different exhaust gas energy recovery bottoming cycles have been analyzed and discussed based on fundamental thermodynamics theory. The typical bottoming cycles are classified into two categories: i.e. direct and indirect energy recovery bottoming cycles. New terms, i.e. Energy Recovery Efficiency (ERE), Energy Conversion Efficiency (ECE) and Overall Energy Conversion Efficiency (OECE) are proposed for the purposes of easier to analyze and easier to compare among the various bottoming cycles. Simplified formulas are derived to demonstrate the key design and operating parameters which define or limit the energy recovery potential. Various typical bottoming cycles are analyzed and sorted based on their OECE from the greatest to least as: Brayton air cycle with isothermal compression, Over-heated Rankine steam cycle, standard Rankine steam cycle, Brayton air cycle with regeneration, standard Brayton air cycle, direct exhaust gas expansion in secondary expander such as turbo-compounding.
CitationXu, Z., Liu, J., FU, J., and Ren, C., "Analysis and Comparison of Typical Exhaust Gas Energy Recovery Bottoming Cycles," SAE Technical Paper 2013-01-1648, 2013, https://doi.org/10.4271/2013-01-1648.
- Kalian N , Zhao H , Yang C. Effects of spark-assistance on controlled auto ignition combustion at different injection timings in a multicylinder direct injection gasoline engine International Journal of Engine Research 2009 10 3 133 48
- Sudheesh K , Mallokarjuna J. Diethyl ether as an ignition improver for biogas homogeneous charge compression ignition (HCCI) operation - an experimental investigation Energy 2010 35 9 3614 22
- Liu J , Fu J , Ren C et al. Comparison and analysis of engine exhaust gas energy recovery potential through various bottom cycles Applied Thermal Engineering 2013 50 1 1219 1234
- Taylor A. Science review of internal combustion engines Energy Policy 2008 36 12 4657 4667
- Liu J , Fu J , Feng K et al. Characteristics of engine exhaust gas energy flow Journal of Central South University (Science and Technology) 2011 42 11 3370 3376
- Wang T , Zhang Y , Peng Z et al. A review of researches on thermal exhaust heat recovery with Rankine cycle Renewable and Sustainable Energy Reviews 2011 15 6 2862 2871
- Conklin J , Szybist J. A highly efficient six-stroke internal combustion engine cycle with water injection for in-cylinder exhausts heat recovery Energy 2010 35 4 1658 1664
- Kalyan K , Pedro S , Mago J , Krishnan R. Analysis of exhaust waste heat recovery from a dual fuel low temperature combustion engine using an Organic Rankine Cycle Energy 2010 35 6 2387 2399
- He M , Zhang X , Zeng K , Gao K. A combined thermodynamic cycle used for waste heat recovery of internal combustion engine Energy 2011 36 12 6821 29
- Weerasinghe W , Stobart R , Hounsham S. Thermal efficiency improvement in high output diesel engines a comparison of a Rankine cycle with turbo compounding Applied Thermal Engineering 2010 30 14 2253 2256
- Hung T. Waste heat recovery of organic Rankine cycle using dry fluids Energy Conversion and Management 2001 42 5 539 553
- Vaja I , Gambarotta A. Internal Combustion Engine (ICE) bottoming with Organic Rankine Cycles (ORCs) Energy 2010
- Göktun S , Yavuz H. Thermal efficiency of a regenerative Brayton cycle with isothermal heat addition Energy Conversion & Management 1999 40 12 1259 1266
- Zhang W , Chen L , Sun F. Power and efficiency optimization for combined Brayton and inverse Brayton cycles Applied Thermal Engineering 2009 29 14 2885 2894
- Alabdoadaim M , Agnew B , Potts I. Performance analysis of combined Brayton and inverse Brayton cycles and developed configurations Applied Thermal Engineering 2006 26 14 1448 1454
- Agnew B , Anderson A , Potts I et al. Simulation of combined Brayton and inverse Brayton cycles Applied Thermal Engineering 2003 23 8 953 963