Dynamic response of turbine-blade temperature to exhaust-gas temperature for gas-turbine engines

Richard Hood, WIlliam E. Phillips, Jr.
naca-rm-e52a14
Feb 1952


The frequency of blade temperature to exhaust gas temperature is presented for two locations in the blade and at several operating conditions. The frequency response was determined by Fourier analysis of transient data. Two analytical methods are presented, and results are compared with experimental data. Dynamic response of turbine-blade temperature to exhaust-gas temperature exhibited the form of an approximate first-order lag. The results are used to predict blade temperature for a typical controlled and uncontrolled gas-turbine engine.

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