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The time history of power produced by a renewable energy power plant is as shown in...
Q.8: An electrical power plant operates on the basis of thermal energy generated in a pressurized...
Q.8: An electrical power plant operates on the basis of thermal energy generated in a pressurized water reactor. The electrical power output of the plant is 1 GW, and its efficiency is 30% (a) Find the total power generated by the reactor. (b) How much power is discharged to the environment as waste heat? (c) Calculate the rate of fission events in the reactor core (Let the energy produced per fission event be 200MeV) (d) Calculate the mass of 235U...
Reservoir A renewable energy system (it can be solar or wind) does not produce power all...
Reservoir A renewable energy system (it can be solar or wind) does not produce power all the time. So when it is generating power some of the excess is used to pump water into a large reservoir that is 50 m above a lake. When the renewable system cannot produce power (no sunshine or wind) then the water can flow from the reservoir back through the turbine to the lake, producing power. How effective is this energy storage system? chin...
1. A renewable energy system delivers 120 kW of three-phase power at 400 V (line-line) to...
1. A renewable energy system delivers 120 kW of three-phase power at 400 V (line-line) to a load with a 0.9 lagging power factor. If each power line has a resistance of R = 0.03 Ω and reactance of X = 0.04 Ω, determine the sending end voltage (line-line) of the three-phase power line connected to the renewable energy system for supplying power to the load. 2. A network service operator found that the voltage rise in a network due...
The vertical drop of water in a hydroelectric power plant is 155m (See figure below). Water...
The vertical drop of water in a hydroelectric power plant is 155m (See figure below). Water flows through the plant and into the lower river at the rate of 425m/s. Assume the overall efficiency of the plant as 80%. Density of water d is equal to 1000kg/m3 Acceleration due to gravity g is equal to 9.81m/s2. Ignore the viscous losses in the flowing water. Dam Water Reservoir Hm Turbine Generator River Figure: Schematic diagram of the hydroelectric power plant (a)...
Please help me thanks. The vertical drop of water in a hydroelectric power plant is 125m...
Please help me thanks.
The vertical drop of water in a hydroelectric power plant is 125m (See figure below). Water flows through the plant and into the lower river at the rate of 325m/s. Assume the overall efficiency n of the plant as 80%. Density of water d is equal to 1000kg/mº. Acceleration due to gravity g is equal to 9.81m/s2. Ignore the viscous losses in the flowing water. Dam Water Reservoir Hm Turbine Generator River Figure: Schematic diagram of...
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...
When coal is burned in a power plant, it releases approximately 30 kJ of energy for...
When coal is burned in a power plant, it releases approximately 30 kJ of energy for every gram of coal that undergoes combustion. A percentage of the energy is used to generate electrical power, and the rest of the energy is lost as heat. Determine the amount of energy used, in joules, of a 40.0 W light bulb that is left on for 1.70 h. energy Determine the amount of electrical power, in watts, generated by a circuit that uses...
Please use Isoquant-isocost graph to explain. Thank You! •Suppose a power plant can use a mixture...
Please use Isoquant-isocost graph to explain. Thank You! •Suppose a power plant can use a mixture of coal and renewable resources to generate Q1 level of electricity. And the price of coal is Pc and price of renewable resources is Pr. Notice that the use of coal or renewable resources will subject to law of diminishing marginal product. Now, evaluate the following policies on the production cost of electricity. a)Government imposes the technology based effluent standards (TBES)* on air pollution...
What is the importance of batteries in using renewable energy such as solar and wind power? Batteries are very energy dense. Batteries provide energy even when it's dark and the wind is not blowin...
What is the importance of batteries in using renewable energy such as solar and wind power? Batteries are very energy dense. Batteries provide energy even when it's dark and the wind is not blowing. Batteries can be charged when energy is abundant and discharged when energy is not. Batteries can keep electricity flowing even when a cloud passes over head and reduces electricity production from solar panels. Batteries last forever (or at least a long time).
1. The PEM fuel cell shown in figure can be used in as a renewable energy...
1. The PEM fuel cell shown in figure can be used in as a renewable energy technology in cars. The fuel cell dimensions and various temperatures are shown. The electrochemical reaction in the fuel cell creates 11.25 watts of power that must be removed by convection and radiation for the fuel cell to operate at steady-state and maintain a constant fuel-cell surface temperature of 25 C. The convection coefficient for the fuel cell surface depends on the air velocity flowing...
Q.8: An electrical power plant operates on the basis of thermal energy generated in a pressurized water reactor. The electrical power output of the plant is 1 GW, and its efficiency is 30% (a) Find the total power generated by the reactor. (b) How much power is discharged to the environment as waste heat? (c) Calculate the rate of fission events in the reactor core (Let the energy produced per fission event be 200MeV) (d) Calculate the mass of 235U...
Reservoir A renewable energy system (it can be solar or wind) does not produce power all the time. So when it is generating power some of the excess is used to pump water into a large reservoir that is 50 m above a lake. When the renewable system cannot produce power (no sunshine or wind) then the water can flow from the reservoir back through the turbine to the lake, producing power. How effective is this energy storage system? chin...
The vertical drop of water in a hydroelectric power plant is 155m (See figure below). Water flows through the plant and into the lower river at the rate of 425m/s. Assume the overall efficiency of the plant as 80%. Density of water d is equal to 1000kg/m3 Acceleration due to gravity g is equal to 9.81m/s2. Ignore the viscous losses in the flowing water. Dam Water Reservoir Hm Turbine Generator River Figure: Schematic diagram of the hydroelectric power plant (a)...
Please help me thanks.
The vertical drop of water in a hydroelectric power plant is 125m (See figure below). Water flows through the plant and into the lower river at the rate of 325m/s. Assume the overall efficiency n of the plant as 80%. Density of water d is equal to 1000kg/mº. Acceleration due to gravity g is equal to 9.81m/s2. Ignore the viscous losses in the flowing water. Dam Water Reservoir Hm Turbine Generator River Figure: Schematic diagram of...
When coal is burned in a power plant, it releases approximately 30 kJ of energy for every gram of coal that undergoes combustion. A percentage of the energy is used to generate electrical power, and the rest of the energy is lost as heat. Determine the amount of energy used, in joules, of a 40.0 W light bulb that is left on for 1.70 h. energy Determine the amount of electrical power, in watts, generated by a circuit that uses...
1. The PEM fuel cell shown in figure can be used in as a renewable energy technology in cars. The fuel cell dimensions and various temperatures are shown. The electrochemical reaction in the fuel cell creates 11.25 watts of power that must be removed by convection and radiation for the fuel cell to operate at steady-state and maintain a constant fuel-cell surface temperature of 25 C. The convection coefficient for the fuel cell surface depends on the air velocity flowing...
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