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Sensitivity Analysis of Gas Turbine Fuel Consumption With Respect to Turbine Stage Efficiency

[+] Author Affiliations
M. Zeinalpour, K. Mazaheri

Sharif University of Technology, Tehran, Iran

A. Irannejad

Michigan State University, East Lansing, MI

Paper No. IMECE2012-89956, pp. 419-423; 5 pages
doi:10.1115/IMECE2012-89956
From:
  • ASME 2012 International Mechanical Engineering Congress and Exposition
  • Volume 1: Advances in Aerospace Technology
  • Houston, Texas, USA, November 9–15, 2012
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4517-2
  • Copyright © 2012 by ASME

abstract

In this paper, the effect of turbine stage efficiency on fuel consumption of both gas turbines and aerial engines is assessed quantitatively. At the beginning of the gas generator optimization to decrease the fuel consumption, it is necessary to analyze the sensitivity of fuel consumption to its main components efficiencies. This will guide us which component is more important to be optimized. Here a zero-dimensional analysis has been done to determine the effect of turbine stage efficiency on the fuel consumption. Results of this analysis are evaluated in the context of thermodynamic cycle of a gas turbine generator and an aerial engine. As an example, it is shown that if the efficiency of first stage of the turbine is increased from 82% to 84%, the fuel consumption of an aerial engine is computed to be decreased by 1%. The cycle analysis performed implies that the sensitivity of fuel consumption to turbine stage efficiency varies for different values of stage efficiency.

Copyright © 2012 by ASME

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