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A natural-gas-fired steam power plant produces 50 MW of net work while consuming natural gas at...
5. A coal fired plant generates 1000 MW of power with a thermal efficiency of 4070....
5. A coal fired plant generates 1000 MW of power with a thermal efficiency of 4070. a. What is the heat input to the plant? b. If the plant burns anthracite coal with a heat of combustion of 26.5 MJ/kg, how much coal (in kg) does the plant use per day? c. How much heat is rejected to the river nearby? Assume all waste heat goes to ine ne d. Assume the efficiency is very near the Carnot efficiency. If...
A combined cycle power plant consists of two gas turbines; cach produces a net power of...
A combined cycle power plant consists of two gas turbines; cach produces a net power of 160 MW, and a 70 MW steam power cycle. The combustion of the fuel in the combustion chamber produces hot gases at 1400°C. The hot gases leaving the gas turbines are used to generate steam through the heat recovery steam generator (Boiler). The hot gases enter the heat recovery steam generator at 880°C and leaves at 660°C. Water enters the isentropic pump as saturated...
4. A coal-fired power plant has thermal efficiency, η = 30%. It produces 100 MW of...
4. A coal-fired power plant has thermal efficiency, η = 30%. It produces 100 MW of power. does the coal combustor transfer energy (heat) to the plant? Answer: 100 MW At what 0 < 400 MH At what rate is heat rejected to the environment? Answer: 100 MW < Qく400 Mw. a. rate b.
A combined gas–steam power plant has been designed with a net power output of 450 MW....
A combined gas–steam power plant has been designed with a net power output of 450 MW. The pressure ratio of the gas-turbine cycle is 14. Air enters the compressor at 300 K and the turbine at 1400 K. The combustion gases leaving the gas turbine are used to heat the steam at 8 MPa to 400 C in a heat exchanger. The combustion gases leave the heat exchanger at 460 K. An open feedwater heater incorporated with the steam cycle...
Question 2: A steam power cycle operates such that the steam exits boiler at 4 MPa,...
Question 2: A steam power cycle operates such that the steam exits boiler at 4 MPa, 400C and the condenser pressure is 10 kPa. The efficiency of the turbine and pump is 85% and 90% respectively. a. Draw the process on a Ts diagram and calculate the thermal efficiency. b. If the plant produces 100MW of net power, - what is the steam flowrates in kg/hr? - If the plant uses natural gas as a fuel, determine the flowrate of...
An industry is proposing to construct a new coal-fired power plant that produces 2300 MW electricity...
An industry is proposing to construct a new coal-fired power plant that produces 2300 MW electricity with efficiency of 39%. Coal has a heating value of 10,750 Btu/lb, and contains a sulfur content of 2.4%. It is expected that 95% of sulfur will be converted to SO2. The New Source Performance Standards (NSPS) limits the SO2 emission rate from any coal-fired power plants to 1.2 lb/ 106 Btu heat input. a) Determine coal consumption in lb/ hr b) Determine SO2...
20.54---- A typical coal-fired power plant generates 1000 MW of usable power at an overall thermal...
20.54---- A typical coal-fired power plant generates 1000 MW of usable power at an overall thermal efficiency of 38%. a) What is the rate of heat input to the plant? b) The plant burns anthracite coal, which has a heat of combustion of 2.65×107J/kg. How much coal does the plant use per day, if it operates continuously? c) At what rate is heat ejected into the cool reservoir, which is the nearby river? d) The river's temperature is 18.0 ∘C...
A nuclear power plant has a reactor that produces heat at the rate of 870 MW....
A nuclear power plant has a reactor that produces heat at the rate of 870 MW. This heat is used to produce 240 MW of mechanical power to drive an electrical generator. (a) At what rate is heat discarded to the environment by this power plant? MW (b) What is the thermal efficiency of the plant? A research group plans to construct an engine that extracts energy from the ocean, using the fact that the water temperature near the surface...
A typical coal-fired power plant generates 1000 MW of usable power at an overall thermal efficiency...
A typical coal-fired power plant generates 1000 MW of usable power at an overall thermal efficiency of 37%. Part A What is the rate of heat input to the plant? Part B The plant burns anthracite coal, which has a heat of combustion of 2.65×107J/kg. How much coal does the plant use per day, if it operates continuously? Part C At what rate is heat ejected into the cool reservoir, which is the nearby river? Part D The river's temperature is...
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...
5. A coal fired plant generates 1000 MW of power with a thermal efficiency of 4070. a. What is the heat input to the plant? b. If the plant burns anthracite coal with a heat of combustion of 26.5 MJ/kg, how much coal (in kg) does the plant use per day? c. How much heat is rejected to the river nearby? Assume all waste heat goes to ine ne d. Assume the efficiency is very near the Carnot efficiency. If...
A combined cycle power plant consists of two gas turbines; cach produces a net power of 160 MW, and a 70 MW steam power cycle. The combustion of the fuel in the combustion chamber produces hot gases at 1400°C. The hot gases leaving the gas turbines are used to generate steam through the heat recovery steam generator (Boiler). The hot gases enter the heat recovery steam generator at 880°C and leaves at 660°C. Water enters the isentropic pump as saturated...
4. A coal-fired power plant has thermal efficiency, η = 30%. It produces 100 MW of power. does the coal combustor transfer energy (heat) to the plant? Answer: 100 MW At what 0 < 400 MH At what rate is heat rejected to the environment? Answer: 100 MW < Qく400 Mw. a. rate b.
Question 2: A steam power cycle operates such that the steam exits boiler at 4 MPa, 400C and the condenser pressure is 10 kPa. The efficiency of the turbine and pump is 85% and 90% respectively. a. Draw the process on a Ts diagram and calculate the thermal efficiency. b. If the plant produces 100MW of net power, - what is the steam flowrates in kg/hr? - If the plant uses natural gas as a fuel, determine the flowrate of...
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