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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2012, Vol. 33 ›› Issue (8): 1400-1405.

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Establishment and Research on Mathematical Model of Isothermal Combustion Process Inside the Turbine

ZHENG Haifei, TANG Hao   

  1. College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2011-10-18 Revised:2012-01-04 Online:2012-08-25 Published:2012-08-23
  • Supported by:
    National Natural Science Foundation of China (51076064);Jiangsu. Six Professional Talent Peak (2008136)

Abstract: The present mathematical models of the isothermal combustion process inside the turbine employed in engineering analysis are all complex involving complex entropies. This paper proposes a mathematical model of the combustion inside the turbine derived from the basic principle of the isothermal process. By comparison and analysis between the proposed and earlier mathematical models, and by comparison and analysis between the earlier and new calculated results, the following conclusions can be drawn: a) Analysis of the overall performance of an aircraft engine using combustion inside the turbine demonstrates that the present mathematical model is superior; b) The new mathematical model is simpler and more convenient, since the programming and computational efficiency can be greatly improved. Therefore it has great potential for application in engineering practice.

Key words: gas turbine, overall performance, thermodynamic cycle, mathematical model, entropy, isothermal combustion

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