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A Simplified Gas Turbine Engine Model With Heat Storage/Tip Clearance Effects PUBLIC ACCESS

[+] Author Affiliations
T. H. Wong

General Motors Corporation, Indianapolis, IN

Paper No. 93-GT-352, pp. V03CT17A013; 8 pages
doi:10.1115/93-GT-352
From:
  • ASME 1993 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 3C: General
  • Cincinnati, Ohio, USA, May 24–27, 1993
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7892-7
  • Copyright © 1993 by ASME

abstract

A simplified turboshaft gas turbine engine model called the direct transient method (DTM) model has been developed. The DTM model consists of table look-up data generated from the actual engine data or the transient engine simulation. The DTM model accounts for heat storage, tip clearance and volume dynamics effects. It can, therefore, better predict engine transient responses and turbine metal temperature than the traditional engine horsepower extraction (HPX) model. This paper presents in detail the DTM methodology for generating accurate simplified engine models of transient performance. Comparisons of engine transient responses between the DTM and HPX models are provided.

Copyright © 1993 by ASME
This article is only available in the PDF format.

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