3. A simple steam power plant illustrated below uses 20 kg/s of steam. Find: a) the boiler heat transfer rate; b) the turbine power output; c) the condenser duty; d) the pump power required. What is the ratio of net power out to heat in (the thermal efficiency)? The turbine and the pump are adiabatic

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Chapter8: Natural Convection
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3. A simple steam power plant illustrated below uses 20 kg/s of steam. Find: a) the boiler heat
transfer rate; b) the turbine power output; c) the condenser duty; d) the pump power required.
What is the ratio of net power out to heat in (the thermal efficiency)? The turbine and the pump
are adiabatic
2
Boiler
Pump
2
3
|3|4
Stream T(°C) P(MPa)
40
40
Turbine
600
x = 1
Condenser
0.01
10
10
0.01
A
Transcribed Image Text:3. A simple steam power plant illustrated below uses 20 kg/s of steam. Find: a) the boiler heat transfer rate; b) the turbine power output; c) the condenser duty; d) the pump power required. What is the ratio of net power out to heat in (the thermal efficiency)? The turbine and the pump are adiabatic 2 Boiler Pump 2 3 |3|4 Stream T(°C) P(MPa) 40 40 Turbine 600 x = 1 Condenser 0.01 10 10 0.01 A
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