International Scientific Journal


The present work provides details of energy accounting of a natural gas powered internal combustion engine and achievable work of a utilized CO2 power cycle. Based on experimental performance analysis of a new designed IKCO (Iran Khodro Company) 1.7 litre natural gas powered engine, full energy accounting of the engine were carried out on various engine speeds and loads. Further, various CO2 transcritical power cycle configurations have been appointed to take advantages of exhaust and coolant water heat lost. Based on thermodynamic analysis, the amount of recoverable work obtainable by CO2 transcritical power cycles have been calculated on various engine conditions. The results show that as much as 18 kW power could be generated by the power cycle. This would be considerable amount of power especially if compared with the engine brake power.
PAPER REVISED: 2009-09-11
PAPER ACCEPTED: 2010-02-14
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THERMAL SCIENCE YEAR 2010, VOLUME 14, ISSUE Issue 4, PAGES [897 - 911]
  1. Ravikumar N., Ramakrishna K., Sitaramaraju A. V., Thermodynamic Analysis of Heat Recovery Steam Generator in Combined Cycle Power Plant, Thermal Science, 11 (2007), 4, pp. 143-156
  2. Polyzakis, A. L., et al., Long-Term Opitimisation Case Studies for Combined Heat and Power System, Thermal Science, 13 (2009), 4, pp. 46-60
  3. Chen, Y., Novel Cycles Using Carbon Dioxide as Working Fluid, Ph. D. thesis, Division of Applied Thermodynamics and Refrigeration, Energy Department, KTH University, Stockholm, 2006
  4. Dostal, V., et al., Supercritical CO2 Cycle for Fast Gas Cooled Reactors, Proceedings on CD, ASME Turbo Expo, Power for Land, Sea and Air, Vienna, paper GT2004-54242, 2004
  5. Chen, Y., Lundqvist, P., Platell, P., Theoretical Research of Carbon Dioxide Power Cycle Application in Automobile Industry to Reduce Vehicles Fuel Consumption, Applied Thermal Engineering, 25 (2005), pp. 14-15, 2041-2053, doi:10.1016/j.applthermaleng.2005.02.001
  6. Farzaneh-Gord, M., et al., Estimating Recoverable Work of an Engine by Utilizing the CO2 Brayton Power Cycle and Capturing Heat Lost, Archives of Thermodynamics, 30 (2009), 3, pp. 1-22
  7. Farzaneh-Gord, M., et al., Simulation of CO2 Power Cycle and Theoretical Investigation of Its Application in Internal Combustion Engine, Proceedings on CD, 3rd International Conference on Modelling, Simulation and Applied Optimization, Sharjah, UAE, 2009
  8. Cayer, E., et al., Analysis of a Carbon Dioxide Transcritical Power Cycle Using a Low Temperature Source, Appl Energy (2008), doi:10.1016/j.apenergy.2008.09.018
  9. Brown, J. S., Yana-Motta, S. F., Domanski, P. A. Comparitive Analysis of an Automotive Air Conditioning Systems Operating with CO2 and R134a, International Journal of Refrigeration, 25 (2002), 1, pp. 19-32
  10. Ramanathan, A., Gunasekaran, P., Simulation of Absorption Refrigeration System for Automobile Application, Thermal Science, 12 (2008), 3, pp. 5-13
  11. Farzaneh-Gord, M., Maghrebi, M. J., Hajializadeh, H., Optimizing Four Stroke Spark Ignition Engine Performance, Proceeding, The 2nd International Conference on Modeling, Simulation, and Applied Optimization, Abu Dhabi, UAE, 2007
  12. Evans, R. L., Jarmer, D. R., Experimental Validation of an Engine Simulation Code with Lean-Burn Natural Gas Engine Data , SAE technical paper series 981909, 1998
  13. Stone, R., Introduction to Internal Combustion Engines, Department of Engineering Science, University of Oxford, Oxford, UK, 1999
  14. Rakopoulos, C. D., Kyritsis, D. C., Comparative Second-Law Analysis of Internal Combustion Engine Operation for Methane, Methanol, and Dodecane Fuels, Energy, 26 (2001), 7, pp. 705-722, doi:10.1016/S0360-5442(01)00027-5
  15. Sobiesiak, A., Zhang, S., The First and Second Law Analysis of Spark Ignition Engine Fuelled with Compressed Natural Gas, SAE International, 2003-01-3091

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