Problem 5-1. A steam power plant operates on an ideal Rankine cycle with two stages of reheat. Steam with a mass flow rate of 45k(g)/(s) enters all three stages of the turbine at 600deg C. The boiler pressure is 8 MPa and the condenser pressure is 10kPa. Steam is reheated at 6MPa after the first stage and at 3MPa after the second stage. (a) Show the cycle on a T-s diagram with respect to saturation lines, and determine (b) the total power output, (c) the thermal efficiency of the cycle, and (d) the rate of exergy destroyed for the cycle.
Problem 5-1.A steam power plant operates on an ideal Rankine cycle with two stages of reheat. Steam with a mass flow rate of 45 kg/s enters all three stages of the turbine at 600C. The boiler pressure is 8 MPa and the condenser pressure is 10 kPa. Steam is reheated at 6 MPa after the first stage and at 3 MPa after the second stage. (@) Show the cycle on a T-s diagram with respect to saturation lines, and determine (b) the total power output, (c) the thermal efficiency of the cycle, and (d) the rate of exergy destroyed for the cycle.