Incineration Exercise. Objectives. Compute the composition of flue gas Compute the temperature of flue gas (a function of waste heat value and composition) Compute the amount of air required. Step 1: Waste Composition.
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combustion process and decreases the oxygen required
for stoichiometric combustion
Required O2 supply/O2 mole fraction
Moles of air = 2.63/0.2069
= 12.7 lb-moles
Btu/lb waste = (Enthalpy in Btu/lb-mole)*
moles of flue gas (from Step 7)/(100 lb of waste)
= 3189 BTU/lb waste
(%EA/100)*(moles req’d for 0% EA (Step 5))
12.7 lb moles * 25/100 = 3.18 lb moles