!         !" #$#%$&%'&(')(*)+*,+-,.-/.0/102132435465768798:9;:<;=<>=?>@?A@BACBDCEDFEGFHGIHJIKJLKMLNMONPOQPRQSRTSUTVUWVXWYXZY[Z\[]\ ^_` a bcdafgfhgijkhlkmlnmonpoqprqsrtsutvuwvxyxz{z|{}|~}~  q'qqq'Example 3-137'Kanawha, West Virginia Stockton-Lewiston Raw Coal 'Theoretical air fraction = '(F).'The stoichiometric reaction equation is:J'aC +bH2 +cO2 +dN2 +eS +fO2 +3.76fN2 -> aCO2 +bH2O +(3.76f+d)N2 +eSO2'Component ' i'lbs i/lb'moles i/ ' Mole'Component' moles j ' wet ' dry  'dry coal 'lb coal 'factors ' j '/lb coal ' xj ' xj 'C  أp= ף?  ^a "CO2 أp= ף?  <?  X:zǑ?  'H2 ) `I +?  ^b "H2O `I +?  =#1?  '------- 'O2 i K7? @ ^c "O2 ? xeAo?  (&?  'N2 ' M!>? 8 ^d "N2 P T? Ng@?  O8? 'SS㥛?@^e "SO2S㥛?:?F,H? 'Ash2' Sum =?? P&t;?? P'wet totalN?? P?? P?? P'From oxygen mole balance:'dry totalP@P܏? 'f =a +e -c +b/2 =.pҽ?   :'The stoichiometric air-fuel ratio is (28.9)(4.76)f =@%$;7'and the actual air fuel ratio is (28.9)(4.76)Ff = V՚@+'Then the actual reaction equation is:<'aC +bH2 +cO2 +dN2 +eS + FfO2 +(3.76)FfN2 -> aCO2 +bH2O>' +[(3.76)Ff+d]N2 +eSO2 +(F-1)fO2&'The steady flow first law gives:D'Q = Hp-Hr = a[hf+dh(T)]|CO2 +b[hf+dh(T)]|H2O + e[hf+dh(T)]|SO2-'+[d+3.76Ff]dh(T)|N2 +(F-1)fdh(T)|O2 = 0&'Heat of Formation, Btu/lb-mole->8A'Flue gas comp.:' (F-1)f' d+3.76Ff ' a ' b ' e'lb-mole/lb fuel!?'P T? /أp= ף? `I +? S㥛?' 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