Abstract
Combustor development depends on two important factors, namely combustor efficiency and exit temperature profile. A microprocessor based system has been designed to have on-line display of exit temperature profiles during the development testing of a gas turbine engine. The system acquires temperature data from thirty thermocouples around the circumference and at various radial positions of the engine. The signals from the thermocouples are fed to a microprocessor through an analog input subsystem. The microprocessor computes the temperatures, averages the values and plots the radial profile on a colour graphic terminal. On the colour graphic terminal, ideal temperature profiles for various engine speeds are drawn. On the ideal temperature profile, actual temperature profiles are superimposed for various speeds during the testing of a gas turbine engine. In addition, circumferential profile is also plotted in off-line.
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