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1. Consider an ideal steam regenerative Rankine cycle with two feedwater heaters, one closed and one open. Steam enters the turbine at 10MPa and 600C and exhausts to the condenser at 11kPa. Steam is extracted from the turbine at 1.3MPa for the closed feedwater heater and at 0.7MPa for the open one. The feedwater is heated to the condensation temperature of the extracted steam in the closed feedwater heater. The extracted steam leaves the closed feedwater heater as a saturated liquid, which is subsequently throttled to the open feedwater heater. Show the cycle on a T-s diagram with respect to saturation lines, and determine (a) the mass flow rate of steam through the boiler for a net power output of 400MW and (b) the thermal efficiency of the cycle. 2. Consider a steam power plant that operates on a simple ideal Rankine cycle. Steam enters the turbine at 10MPa and 600C and is cooled in the condenser at a pressure of 11kPa. Determine the exergy destruction associated with each of the processes of the cycle assuming a source temperature of 1450K and a sink temperature of 285K