Power Electric
Power Electric
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How many tons of coal to be burned day of a power plant that 500MWe delivers continuous?
How many tons coal must be burned per day electric power plant which provides continuous 500MWe if efficiency is 30%?
depends on the type of coal. As rough average of various species I will use 32 000 kJ / kg as heat content. 32,000 kJ / kg = 3.2e7 J / kg divided into 0.3 efficiency will receive 500 MW / 0,3 = 1667 MW power needs. it is 1667 MJ / second x 3600 s / hour x 24 hours / day = 1.44e14 J / day 1.44e14 J / day / 3.2e7 J / kg = 4.5e6 kg, as there are at least three definitions of "t" will choose the metric tonnes, which is 1,000 kg, so 4.5e6 kg = 4,500 tons coal ..