Academics – Applied Heat : 2016/DEC/03
Question
Q4. A fuel has a mass analysis of 80% carbon, 15% hydrogen, 1.5% sulphur and 2% water. The remainder being ash.
The fuel is completely burned in 10% excess air.
Calculate EACH of the following:
(a) the stoichiometric air fuel ratio by mass; (6)
(b) the mass of oxygen required to convert the SO2 in the combustion products to soluble SO3; (4)
(c) the volumetric analysis of the dry combustion products after the formation of the SO3. (6)
Note: Relative Atomic masses: C=12, H=1, O=16 N=14, S=32.
Air contains 23% oxygen by mass
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