Coal is made of 82,2% carbon, 4,6% hydrogen, 1% sulphur and the rest is incombustible. We know that 21% of air is oxygen. Calculate what volume of air will we need to burn 1 tone of this coal?
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1 calorific value produce heat = 28000
calorific value is = 500, 000
= 28000/500, 000
= 50000
It will produce heat = 50000
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