Consider a steam power plant that operates a reheat Rankine cycle and has a net power output of 80 MW. Steam enters the high-pressure turbine at 10 MPa and 500°C and the low-pressure turbine at 1.4 MPa and 500°C. Steam leaves the condenser as a saturated liquid at a pressure of 10 kPa. Assume both turbine and compressor are isentropic. Determine the thermal efficiency of the cycle. Use steam tables. The thermal efficiency of the cycle is 100 %.

Consider a 210-MW steam power plant that operates on a simple ideal Rankine cycle. Steam enters the turbine at 10 MPa and 500°C and is cooled in the condenser at a pressure of 7.5 kPa. Determine the mass flow rate of the steam. The mass flow rate of steam is 109.1 kg/s.

Steam in a reheat Rankine cycle enters the first-stage turbine at 8 MPa and 450°C. The steam leaves this first turbine at 800 kPa as a saturated vapor. The steam is then reheated isobarically back to 450°C before entering the second-stage turbine. At the exit of this second turbine, the steam is at 10 kPa and 50°C. The net power output of this cycle is 20 MW, and the water leaves the condenser as a saturated liquid. You may assume the pump functions isentropically and that there are no pressure losses in the condenser and boiler. Determine C. d. e. MW. Draw this cycle on a T-s diagram. Calculate the isentropic efficiencies of the first- and second-stage turbines. Calculate the thermal efficiency of the cycle. Calculate the mass flow rate of steam, in kg/h. Calculate the rate of heat transfer from the water as it passes through the condenser, in

Consider a steam power plant that operates on the ideal reheat Rankine cycle. The plant maintains the boiler at 8000 kPa, the reheat section at 1000 kPa, and the condenser at 20 kPa. The mixture quality at the exit of both turbines is 90 percent. Determine (a) the temperature at the inlet of each turbine, (b) the cycle's thermal efficiency, efficiency of this cycle. Assume a source temperature of 1500 K and a sink temperature of 295 K. (d) the second-law