Abstract:
A predicting model of cooling air percentage for turbine
blades with respect to simple-cycle triple-shaft gas turbine plant
considering the thermophysical properties of the air and the gas is established. The thermodynamic performance of the cycle is
investigated. The calculation flow chart of the power output
and the efficiency is exhibited, and the verification computation
is performed based on the design performance data for ДН80Л-
type industrial gas turbine plant developed by Ukraine. The
results indicate the model is reasonable and can predict the
design performance of gas turbine cycle effectively. The
maximum power output, the maximum efficiency and their
corresponding cooling air percentages are obtained by
optimizing the pressure ratio of the low-pressure compressor
and the total pressure ratio, respectively. The results also
indicate that the outlet temperature of combustor chamber or
the inlet temperature of turbine affects the thermodynamic
performance of the cycle evidently.
Description:
Papers presented at the 13th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Portoroz, Slovenia on 17-19 July 2017 .
