METHODOLOGY OF EXPERIMENTAL AND ESTEMATED DETERMINATION OF PERFORMANCE INDICATORS OF THE MAIN GTE COMBUSTION CHAMBERS BASED ON THE RESULTS OF THEIR AUTONOMOUS TESTS ON THE CHAMBER STANDS
The article describes the main stages of processing the results of the GTE combustion chamber tests on the chamber stands and mathematical models used in these stages for calculating chamber performance (total pressure recovery coefficient and combustion efficiency). The key elements of the computer program averaging the parameters of non-uniform air and gas flows in GTE ducts using twelve methods was considered. It was processed the GTE combustion chamber test results on the chamber stand with a heating chamber at the inlet of the test chamber. The total pressure recovery coefficient and combustion efficiency were calculated with use of different ways of averaging measurement results of non-uniform gas flows. The estimation of influence of the humidity of the air supplied to the inlet of the test chamber on the combustion efficiency was performed.