A steam power plant operates at maximum pressure of 500 psia and a low pressure value of 14.7 psia. All of the steam is extracted from the turbine at 60 psia and is reheated back to maximum temperature. The maximum temperature is 1000 f. What is the work out put at the turbine.? Assume the turbine is 100% efficient.
This is reheat rankine cycle. After reheat and enter turbine,the enthlopy is h=1530 btu/lbm, and s=1.98 btu/lb-r at 60 psia and 1000 F. The outlet of turbine is 14.7 psia. If s=1.98 to calculate quality x, it is more than 1.