Mass of Air Required for Combustion of Fuel
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A coal fired boiler uses fuel having the following analysis by mass:
Carbon 81%, hydrogen 5%, oxygen 6 %, ash 8%.
A) Determine the minimum mass of air necessary for complete combustion of 1 kg of fuel.
B) If 40% excess air is supplied, determine the percentage composition of the dry exhaust gases by mass.
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Solution Summary
The mass of air required for combustion of fuel is calculated.
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A/ DETERMINE THE MINIMUM MASS OF AIR NECESSARY FOR COMPLETE COMBUSTION OF 1 KG OF FUEL.
The minimum amount of air is the amount of air that will be sufficient for reacting with all C according to the reaction:
C + O2 = CO2
For every 1 kg of fuel, we have 0.81 kg ...
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