Q16) The following data are for a simple steam power plant as shown.State2347P MPa6.26.15.9 5.7 5.50,01 0,009T°C45175 50049040State 6 has x, = 0.92, and velocity of 200 m/s. The rate of steam flow is 25 kg/s, with300 kW power input to the pump. Piping diameters are 200 mm from steam generatorto the turbine and 75 mm from the condenser to the steam generator. Assume thecooling water comes from a lake at 15°C and is returned at 25°C.Determine:a) The rate of heat transfer in the condenser.b) The mass flow rate of cooling water from the lake.SteamTurbinegeneratorc) The rate of heat transfer in the economizer, which isa low temperature heat exchanger.d) The rate of heat transfer needed in the steam generator.CoolingwaterCondensere) Determine the velocity at state 5 and the power outputof the turbine.EconomizerPump[a) -56130 kW, b) 1339.6 kg/s, c) 13750 kW, d) 67075 kW, e) 49 m/s, 24 800 kW]

Q16) The following data are for a simple steam power plant as shown. 4 State 2 P MPa T°C State 6 has x, = 0.92, and velocity of 200 m/s. The rate of steam flow is 25 kg/s, with 300 kW power input to the pump. Piping diameters are 200 mm from steam generator to the turbine and 75 mm from the condenser to the steam generator. Assume the cooling water comes from a lake at 15°C and is returned at 25°C., 6.2 6.1 5.9 5.7 5.5 0.01 0.009 45 175 500 490 40 %3D Determine: a) The rate of heat transfer in the condenser. b) The mass flow rate of cooling water from the lake. c) The rate of heat transfer in the economizer, which is a low temperature heat exchanger. d) The rate of heat transfer needed in the steam generator. e) Determine the velocity at state 5 and the power output Steam Turbine generator Cooling water Condenser of the turbine. Economizer

Q16) The following data are for a simple steam power plant as shown. 4 State 2 P MPa T°C State 6 has x, = 0.92, and velocity of 200 m/s. The rate of steam flow is 25 kg/s, with 300 kW power input to the pump. Piping diameters are 200 mm from steam generator to the turbine and 75 mm from the condenser to the steam generator. Assume the cooling water comes from a lake at 15°C and is returned at 25°C., 6.2 6.1 5.9 5.7 5.5 0.01 0.009 45 175 500 490 40 %3D Determine: a) The rate of heat transfer in the condenser. b) The mass flow rate of cooling water from the lake. c) The rate of heat transfer in the economizer, which is a low temperature heat exchanger. d) The rate of heat transfer needed in the steam generator. e) Determine the velocity at state 5 and the power output Steam Turbine generator Cooling water Condenser of the turbine. Economizer

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter10: Heat Exchangers

Section: Chapter Questions

Problem 10.19P

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