How many tons of coal must be burned per day for a power plant that provides ongoing 500MWe?

How many tons coal must be burned per day in a power plant that provides ongoing 500MWe if the efficiency is 30%?

depends on the type coal. Taking a rough average of various types, I will use 32 000 kJ / kg heat content. 32 000 kJ / kg = 3.2e7 J / kg divided by 0.3 for effectiveness, we obtain 500 MW / 0.3 = 1667 MW of power needed. is 1667 MJ / sec x 3600 s / hx 24 h / day = 1.44e14 J / 1.44e14 Day / Day / 3.2e7 J / kg = 4.5e6 kg, since there is least three definitions of "tons" I'll choose a metric ton, which is 1,000 kg, 4,500 kg = 4.5e6 tonnes of coal ..

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