Gas Turbine Combustion Efficiency PUBLIC ACCESS

[+] Author Affiliations
Barry Schlein

Pratt and Whitney Aircraft, East Hartford, CT

Paper No. 85-IGT-121, pp. V002T04A019; 6 pages
  • ASME 1985 Beijing International Gas Turbine Symposium and Exposition
  • Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels
  • Beijing, People’s Republic of China, September 1–7, 1985
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7943-6
  • Copyright © 1985 by ASME


A method of correlating combustor efficiency as a function of geometry and operating conditions is presented. A simple equation correlates all the data for a given engine type with a single parameter. The correlating parameter is a function of fuel flow, pressure, temperature and volume in a form similar to others in the literature. The unique feature of the correlating parameter is its use of internal gas temperature rather than the commonly used combustor inlet temperature. The result is an equation requiring an iterative solution since combustion efficiency is a part of the correlating parameter. With use of a computer this is easily handled. The correlation fits engine data over all flight conditions from high altitude, high Mach number to sea level idle. The correlation is compared to engine test data for several engines.

Copyright © 1985 by ASME
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