Performance parameters for gas generator comparison

Abstract

Methods fcr comparing gas turbine engines where the thermodynamic cycle begins and ends in the atmosphere are well defined and documented. No such comparison technique(s) exists for the gas generator or core portion of the engine. The term gas generator or core refers to the high pressure compressor and turbine, and the combustor. This thesis formulates gas generator performance parameters, develops methods of testing and data reduction necessary to obtain these parameters, establishes criteria for comparing two gas generators, and develops an analytical model to test the validity of the comparison method.