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A power plant burns coal and generates an average of660.0Megawatts (MW) of electrical power while discharging 990.00MW aswaste heat. Find the total electrical energy generated by theplantin a 30-day period. Coals vary a lot intheir energy content.The energy released by the burning of coal istypically between 23and 33 Mega Joules per kg of coal. The powerplant above uses coalrated at 25.3 MJ/kg to heat the boilers. Someof that heat isconverted to electrical energy, but most is wasteheat dischargedinto the environment. Assume that it takes about2.26 kg of oxygento burn 1 kg of coal (The actual amount varieswith the type coal).Find the total mass of the reagents used inoperating for 30days. The total average power (electrical + heat), and the time,givesthe total energy. Since you know the energy per kilogram ofcoal,and how many kg of oxygen are required for each kg of coal,you canget the total reagent mass.
A power plant burns coal and generates an average of660.0Megawatts (MW) of electrical power while discharging 990.00MW aswaste heat. Find the total electrical energy generated by theplantin a 30-day period. Coals vary a lot intheir energy content.The energy released by the burning of coal istypically between 23and 33 Mega Joules per kg of coal. The powerplant above uses coalrated at 25.3 MJ/kg to heat the boilers. Someof that heat isconverted to electrical energy, but most is wasteheat dischargedinto the environment. Assume that it takes about2.26 kg of oxygento burn 1 kg of coal (The actual amount varieswith the type coal).Find the total mass of the reagents used inoperating for 30days.
The total average power (electrical + heat), and the time,givesthe total energy. Since you know the energy per kilogram ofcoal,and how many kg of oxygen are required for each kg of coal,you canget the total reagent mass. |
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