Comparative Performance of Reheat and Regenerative Steam Cycle by using Program

The present paper describes performance comparison of reheat cycle and regenerative steam power cycle. Thermal efficiency calculation is carried out by developing a program using c language. Using this developed program we can analyze steam power cycles such as simple rankine cycle, reheat cycle, regenerative cycle and combined reheat and regenerative cycle for different process parameters. Developed program takes into account isentropic efficiency of turbine and pump. Inlet and outlet pressure, temperature of boiler, turbine, pump and condenser. Comparison between rankine cycle, reheat cycle, regenerative cycle and combined cycle are made at different operating conditions. Small increment in thermal efficiency leads to large investment return and more power production for a given set of operating parameters. Developed program helps in determining thermal efficiency of the cycle by choosing appropriate set of operating condition of process parameters. This analysis helps power plant designers in choosing appropriate thermal power cycle for a given set of operating conditions. It is observed that the results obtained from the program, such as optimum bled steam tapping pressure for regenerative cycle and effect of boiler pressure variation on reheat cycle and regenerative cycle are in good agreement with the referred literature. Analysis shows that regenerative cycle is more efficient compare to reheat cycle for a given set of operating conditions.