please show all computations PILULUH.001 1. How many metric tons of bituminous coal needed to run...
Engine Cycles a) Bituminous coal has an energy content of 3.0 x 107 J/kg. A coal-fired generating plant is 40% efficient and produces 500 MW of electrical power. How many kilograms of coal must be burned each second to run the plant and how much thermal energy is ejected into the environment?
A typical coal-fired power plant burns 290 metric tons of coal every hour to generate 800 MW of electricity. 1 metric ton= 1000 kg. The density of coal is 1500 kg/m3 and its heat of combustion is 28 MJ/kg. Assume that all heat is transferred from the fuel to the boiler and that all the work done in spinning the turbine is transformed into electrical energy. Part A)Suppose the coal is piled up in a 8.0 m × 11 m...
An electric power generation burns bituminous coal in a dry furnace at a rate of 200 tons/h. The plnat operates continuoulsy 8760 h/yr. The coal has higher heating value of 12,500 Btu/lbm, 3% sulfur and 8% ash, and 0.001% mercury (by weight). An electrostatic precipitator (ESP) removes sufficient flyash to satisfy the new source performance standards. (a) If all the mercury condenses on the minuscule flyash particles that are nor captured by ESP, estimate the mercury emissions (tons/yr). (b) If...
A typical coal-fired power plant burns 270 metric tons of coal every hour to generate 2.9x10^6 MJ of electricity. 1 metric ton= 1000 kg; 1 metric ton of coal has a volume of 1.5m^3. The heat combustion is 28 MJ/kg. Assume that all heat is transferred from the fuel to the boiler and that all the work done in spinning the turbine is transformed into electrical energy. a) Suppose the coal is piled up in a 10m x 11m room....
How many metric tons of coal containing an average of 2% S are required to produce 100 million metric tons of SO2? 100 million metric tons is the amount of SO2 released annually from electricity production
A typical coal-fired power plant burns 320 metric tons of coal every hour to generate 2.6×106 MJ of electricity. 1 metric ton = 1000 kg; 1 metric ton of coal has a volume of 1.5 m3. The heat of combustion is 28 MJ/kg. Assume that all heat is transferred from the fuel to the boiler and that all the work done in spinning the turbine is transformed into electrical energy. 1. Suppose the coal is piled up in a 10...
A typical coal-fired power plant burns 310 metric tons of coal every hour to generate 2.8×106 MJ of electricity. 1 metric ton = 1000 kg; 1 metric ton of coal has a volume of 1.5 m^3. The heat of combustion is 28 MJ/kg. Assume that all heat is transferred from the fuel to the boiler and that all the work done in spinning the turbine is transformed into electrical energy. (A) Suppose the coal is piled up in a 12...
16. How many metric tons of 5%-S coal would be needed to yield the H2SO4 required to produce a 3.00-cm rainfall of pH 2.00 over a 100 km2 area?
Assume that in 2010 the United States will need 2.0×1012 watts of electric power produced by thousands of 1000 MW power plants. These will almost certainly be powered by either coal or nuclear reactors. If all the energy is provided by U-235 burning reactors, how many tonnes of U-235 will be needed annually? NOTE: Rather than using the exact energy from problem 1, please assume that fission of U-235 releases a "rounded" 8.E13 J/kg (Assume a realistic efficiency of 45...
Please answer Questions e-f-g-h: (a) The boiler of a power plant operates at a maximum temperature of 750oC. The condenser of the power plant draws in cooling water at 20oC. What is the theoretical maximum efficiency of the plant? (b) Now suppose that a real power plant is built to have an efficiency that is 80% of the theoretical efficiency. The power plant needs to generate 1GW (giga-watt) of power. How much energy (per second) needs to be supplied by...