Abstract
According to the mechanism of thermal system modelling method, the implanting the health factors is adopted, the steady state non-1inear performance deterioration model is founded by integrating experience performance with thermodynamics theory. Considering the low-pressure compressor suffer from fouling, the performance deterioration of gas turbine is simulated based on the temperature-control of outlet of combustion chamber. The measurement parameters of variation are obtained; the mechanism and sensitivity of the change are defined. The results illustrate that the outlet pressure of the low-pressure compressor is degenerated obviously, so can be well-monitor sensors. The deterioration of low-pressure shaft speed is strong non-1inear decreased vs. the fouling increased. Thanks to the cooling for air of outlet of low-pressure compressor by intercooler, in conjunction with the power decreased of low-pressure turbine, the temperature of outlet of low-pressure compressor is have not bad influence on the high-pressure compressor. So the temperature without severe cast down, it is not fine for health monitor.
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