Question

A reheat power plant operates between the pressures of 10 MPa and 5 kPa. Steam enters the high and low pressure turbines at 400 °C. If the steam leaves the high pressure turbine at 4 MPa and steam is at saturated vapour state at the end of both turbines, total specific power output of this power plant is; A heat pump is absorbing heat from the cold outdoors at 5°C and supplying heat to a house at 25°C at a rate of 5 kW. If the power consumed by the heat pump is 1.9 kW, the coefficient of performance of the heat pump is 870.5k/kg O 13 890.5 kJ/kg 0 2.6 910.5k/kg O 3.0 O 930.5 kJ/kg O 3.8 950.5 kJ/kg 8.2 O 970.5k/kg 13.9 The drinking water needs of an office are met by cooling tab water in a refrigerated water fountain from 23°C to 6 °C at an average rate of 10 kg/h. If the COP of this refrigerator is 3.1, the required power input (W) to this refrigerator is; (assume Co. water 4.18 kl/kg.K) O 197 W A well-insulated turbine operates at steady state with known inlet and exit conditions as given in the figure. If the power output is 23 MW, Determine the mass flow rate of steam across the turbine. Steam Wer = 23 MW T-350C V35 m/s turbine P0.1 bar P = 25bar Sat. vapor 15 = 120 m/s 612 W O 64 W 109 W 403 W O 216 W 36.5 kg/ 39.6 kg/s 42.8 kg/ 45.7 kg/s 49.3 kg/s O 52.2 kg/s

Answer 1

I am just following the HOMEWORKLIB RULES to answer the first question.