Test 4 A steam power plant with inlet steam to the h.p. turbine at 90 bar and 500°C, and condensation at 40°C produces 5

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Test 4 A Steam Power Plant With Inlet Steam To The H P Turbine At 90 Bar And 500 C And Condensation At 40 C Produces 5 1 (41.61 KiB) Viewed 32 times

Test 4 A steam power plant with inlet steam to the h.p. turbine at 90 bar and 500°C, and condensation at 40°C produces 500 MW. It has one stage of reheat optimally placed which raises the steam temperature back to 500 °C. One closed feedwater heater with drains cascaded back to the condenser receives bled steam at the reheat pressure. and the remaining steam is reheated and then expanded in the I.p. turbine. The h.p. and 1.p. turbines have isentropic efficiencies of 92% and 90%, respectively. The isentropic efficiency of the pump is 75%. Calculate (a) the mass flow rate of steam at turbine inlet in kg/s, (b) the cycle efficiency, and (c) the cycle work ratio. Use TTD=-1.6°C. 1 kg 90 bar, 500 °C leee SH RH roo ECO 9 18 har 1-M Heater 1 kg ILP T Trap 2 M www fiks (a) 4 1-m HE 40 °C (1-m) kg 8 31-1 kg C.W. C.W. T 1 kg 90 bar 18 bar 2s LEST 40 °C 65 (b) 500 °C X 4 4