Consider an ideal steam reheat and regenerative cycle where steam leaves a steam gen and enters a high pressure turbine at 3 Mpa and T=400 C and is extracted to an open feedwater heater at 0.8 Mpa. The remainder is reheated to 400 C at this pressure which flows to the low pressure turbine stage. The condenser saturation pressure is 10 Kpa. Determine the thermal efficiency of the cycle and the net specific work. Assume each turbine stage isentropic efficiency to be 99% and assume the FWH is open.
This solution provides a detailed, step-by-step process to finding thermal efficiency and net specific work in an ideal steam reheat and regenerative cycle. Equations and diagrams are provided to enhance learning of the concept.