4. How much water is needed to produce 1 kWh of electricity at a power plant...
4. How much water is needed to produce 1 kWh of electricity at a power plant that is 30% efficient if the temperature of the water is allowed to increase by 10 degree C ? {please consider that the water is used to for cooling, cooling the waste heat}
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4. How much water is needed to produce 1 kWh of electricity at a
power plant...
A typical large coal fired electric power plant produces 1,200MW of electricity by burning fuel with...
A typical large coal fired electric power plant produces 1,200MW of electricity by burning fuel with energy content of 3,000 MW. Three hundred and forty (340) MW are lost as heat up the smokestack leaving the rest to drive a generator to produce electricity. However, the thermal efficiency of the turbine is only 45%. That is 45% of the remaining power goes to drive the generator, and 55% is waste heat that must be removed by cooling water. Assume that...
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4. CIP has three electric power plants that supply the power needs of four cities. Each power plant can supply the following numbers of kilowatt-hours (kwh) of electricity: plant 1, 35 million; pl...
4. CIP has three electric power plants that supply the power needs of four cities. Each power plant can supply the following numbers of kilowatt-hours (kwh) of electricity: plant 1, 35 million; plant 2, 50 million; plant 3, 40 million. The peak power demands in these cities, which occur at the same time (2:00 P.M.), are as follows (in kwh): city A, 20 million; city B, 20 million; city C, 30 million; city D, 30 million. The costs of sending...
30% of the energy produced from a nuclear power plant is converted to 1000 MW of...
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An electric water heater holds 202 L. If electricity costs 0.13 $ per kWh, how much...
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C. Calculation problems (12 marks each) 6. Generating electricity from a nuclear power plant A thermal...
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An experimental power plant at the Natural Energy Laboratory of Hawaii generates electricity from the temperature gradient of the ocean. The surface and deep-water temperatures are 30 ∘C and 5 ∘C, res...
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Consolidated Power, a large electric power utility, has just built a modern nuclear power plant. This...
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Consolidated Power, a large electric power utility, has just built a modern nuclear power plant. This...
Consolidated Power, a large electric power utility, has just built a modern nuclear power plant. This plant discharges waste water that is allowed to flow into the Atlantic Ocean. The Environmental Protection Agency (EPA) has ordered that the waste water may not be excessively warm so that thermal pollution of the marine environment near the plant can be avoided. Because of this order, the waste water is allowed to cool in specially constructed ponds and is then released into the...
ethanol is 190 g E a 3) A coal-fired power plant is designed to produce 12...
ethanol is 190 g E a 3) A coal-fired power plant is designed to produce 12 MW of electricity. (This is a small unit that might be used to power a pulp-and-paper mill or other relatively energy intensive factory.) The coal is used to heat steam to a temperature of 560 C. After running through the turbines; the steam has been condensed and the liquid water cooled to 38 °C. (a) Calculate the minimum amount of heat that must be...
4. CIP has three electric power plants that supply the power needs of four cities. Each power plant can supply the following numbers of kilowatt-hours (kwh) of electricity: plant 1, 35 million; plant 2, 50 million; plant 3, 40 million. The peak power demands in these cities, which occur at the same time (2:00 P.M.), are as follows (in kwh): city A, 20 million; city B, 20 million; city C, 30 million; city D, 30 million. The costs of sending...
C. Calculation problems (12 marks each) 6. Generating electricity from a nuclear power plant A thermal heat at a rate of 1.2 GW and at a temperature of 450 C. This heat is used in an engine that is connected to the sea water at T 20°C as low temperature reservoir. The engine has an efficiency of 51%. nuclear power plant generates (A) What is the electrical power output of this power plant? (The electrical enerzy output is equal to...
ethanol is 190 g E a 3) A coal-fired power plant is designed to produce 12 MW of electricity. (This is a small unit that might be used to power a pulp-and-paper mill or other relatively energy intensive factory.) The coal is used to heat steam to a temperature of 560 C. After running through the turbines; the steam has been condensed and the liquid water cooled to 38 °C. (a) Calculate the minimum amount of heat that must be...
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