COMPARATIVE THERMODYNAMIC PERFORMANCE EVALUATION OF COOLED GAS TURBINE PLANT

Shivam Mishra, Mithilesh Kumar, Sahu
unpublished
In recent era development of new high temperature materials and improved blade cooling technologies have made an encouraging impact on the gas turbine performance. The previous literature shows that gas turbine cycle performance is improved with increase in turbine inlet temperature (TIT). To achieve higher turbine inlet temperature we need to introduce some efficient blade cooling means. The present paper deals with the comparative analysis of gas turbine performance based on two different
more » ... n two different blade cooling schemes i.e. film cooling and convective cooling. The performance results have been expressed in terms of thermal efficiency, specific power output of the cycle which is a strong function of gas turbine blade cooling scheme. The independent variables considered in the present study are TIT, compressor pressure ratio and coolant inlet temperature. The parametric analysis of the present cycle includes the modeling of all components of gas turbine cycle and gas properties model have also been adopted.
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