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Exhaust gas temperature measurements in diagnostic examination of naval gas turbine engines Part I Steady-state processes


The article presents a possible method of detecting failures in the flow section and supply system of a naval gas turbine engine based on the exhaust gas temperature measured behind the gas generator. This temperature is a basic diagnostic parameter use for evaluating the technical state of the turbine engine in operation, and is monitored during engine start-ups, accelerations and decelerations of rotor units, and steady-load states. The first part of the article is limited to the presentation of the results of diagnostic examination of a threeshaft engine with a separate power turbine, operating in steady-load states. The here presented diagnostic analyses and syntheses based on a simplified mathematical model of thermal and flow processes taking place in the combustion chamber, which was used for deriving the equation describing the average steadystate temperature of the exhaust gas flow at the outlet cross-section of the chamber.


technical diagnostics, naval turbine engines, exhaust gas temperature, steady-state processes


Vol. 18 No. 2(69) (2011)
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Author Biography

Zbigniew Korczewski,
Gdansk University of Technology, Faculty of Ocean Engineering and Ship Technology


Zbigniew Korczewski

Gdansk University of Technology, Faculty of Ocean Engineering and Ship Technology

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