A nuclear power plant generates 3000 MW of heat energy from nuclear reactions in the reactor's...
A nuclear power plant generates 3000 MW of heat energy from nuclear reactions in the reactor's core. This energy is used to boil water and produce high-pressure steam at 320 ∘C. The steam spins a turbine, which produces 1000 MW of electric power, then the steam is condensed and the water is cooled to 25∘C before starting the cycle again.
Part A: What is the maximum possible thermal efficiency of the power plant?
Part B: Cooling water from a river flows through the condenser (the low-temperature heat exchanger) at the rate of 1.2×108L/h (≈30 million gallons per hour). If the river water enters the condenser at 18∘C, what is its exit temperature? Express your answer using two significant figures.
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A nuclear power plant generates 3000 MW of heat energy from
nuclear reactions in the reactor's...
30% of the energy produced from a nuclear power plant is converted to 1000 MW of...
30% of the energy produced from a nuclear power plant is converted to 1000 MW of electrical energy. The remaining 70% of the energy from this plant is converted to heat waste. 20% of the heat waste is released out of the smokestack. 80% of the heat waste is taken away by cooling water that is drawn from a nearby river. Specific heat of water = 4.184 kJ/kgºC a) How much of the heat waste is taken away by the...
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3-40 In the condenser of a steam power plant the steam from the turbine enters the...
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A nuclear power plant based on the Rankine cycle operates with a boiling-water reactor to develop net cycle power of 3 MW. Steam exits the reactor core at 100 bar, 52O degree C and expands through the turbine to the condenser pressure of 1 bar. Saturated liquid exits the condenser and is pumped to the reactor pressure of l00 bar. Isentropic efficiencies of the turbine and pump are 81% and 78%, respectively. Cooling water enters the condenser at 15 degree...
9.36 In a nuclear power plant the reactor transfers the heat to a flow of liquid sodium, which in a heat exchanger transfers the heat to boiling water. Saturated vapor steam at 5 MPa exits this heat exchanger and is then superheated to 600°C in an external gas-fired superheater. The steam enters the turbine, which has an extraction at 0.4 MPa to an open FWH, and the condenser pressure is 10 kPa. Determine the heat transfer in the reactor and...
A combined gas-steam power plant uses a simple gas turbine for
the topping cycle and a simple Rankine cycle for the bottoming
cycle. Atmospheric air enters the compressor at 101 kPa and 20 °C,
and the maximum gas cycle temperature is 1100 °C. The
compressor pressure ratio is 8. The gas stream leaves the heat
exchanger at the saturation temperature of the steam flowing
through the heat exchanger. Steam enters the heat exchanger at a
pressure of 6 MPa and...
Consider a steam power plant that operates on a simple ideal Rankine cycle and has a net power output of 45 MW (Wnetout - Wtout - Wpin). Steam enters the isentropic turbine at 7 MPa and 500-C and is cooled in the condenser at a pressure of 10 kPa by running cooling water through the condenser (heat exchanger). Determine the following: (Note: Show the procedure of your solution for all parts) Boiler P3 7 MPa 3 T,-500 °C 2 Pump...
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In Geothermal-steam power cycle, the source of heat is the hot
water from well. The heat exchanger receive hot water at Tg1= 105
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the boiler at 40 bar, 300 oC, and it exits the turbine at 1 bar.
Saturated liquid water exits the condenser at 1 bar. The plant
operate to generate 20 MW electric power with generator efficiency
of 0.95. The isentropic efficiency of...
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