Turbotest: A Computer Program for Rig Test Analysis of Arbitrary Gas Turbine Engines PUBLIC ACCESS

[+] Author Affiliations
J. R. Palmer

Cranfield Institute of Technology, Cranfield, Bedford, England

Yong-Gen Gu

Nanhua Powerplant Research Institute, Hunan, The People’s Republic of China

Paper No. 84-GT-33, pp. V005T14A002; 8 pages
  • ASME 1984 International Gas Turbine Conference and Exhibit
  • Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; Process Industries; Technology Resources
  • Amsterdam, The Netherlands, June 4–7, 1984
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7950-4
  • Copyright © 1984 by ASME


This paper presents a computer model called ‘TURBOTEST’ which is applicable both to analysis of gas turbine engine rig tests and to simulation of engine steady-state performance. As with the earlier ‘TURBOFLEXI’ model a wide range of gas turbine engines can be simulated, using any kind of hydrocarbon fuel, and allowing for chemical dissociation of the gas, and for the effect of air humidity.

In addition, however, for the particular requirements of rig test analysis, the following new features have been developed and incorporate:-

(a) It can carry out rig test analysis for a wide range of gas turbine engines if all the necessary test data are presented.

(b) If the test data is incomplete, a computer simulation of the engine can be used to complete the analysis.

(c) Performance deterioration of engine components can be detected by comparing the results of a test analysis and of a parallel simulation using stored characteristics of engine components in the “as new” condition.

The program has been tested on simulated test data generated by engine models such as a turbojet and a turbofan. The results show it has close and repeatable agreement with design values. Further tests of the model have been carried out by applying it to the actual engine rig test data.

Copyright © 1984 by ASME
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