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given the ultimate analysis of the fuel

c - 88.3%

h - 9.5%

o -

n -

s - 1.4%

ash - 0.8%

find the:

a. raf and rgf

b. concentration of so2 and particulate matter if excess air is 20%.

i know how to calculate the raf and rgf, i also know how to compute the so2 and particulate

matter but i dont know to compute them if excess air is given.

what should i do to the excess air = 20%?

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# Ultimate analysis

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