
332 Oxygen-Enhanced Combustion
With this formulation, the species source term S
A
in
Equation 14.5 can be written for the entire set of chemi-
cal reactions as
SW nR
AA ij j
j
=
(14.15)
where
i = 1, 2,…, N
S
j = 1, 2,…, N
R
W
A
is the molecular weight of species A
The source term Q
R
due to chemical reaction in the
energy equation (14.8) is given in terms of heat of jth
reaction (ΔH
Rj
) as
QRHT
RjRj ref
j
=− ∆
(14.16)
where j = 1, 2, …, N
R
and Equation 14.16 can be evaluated
in terms of the heat of formation of species at reference
temperature T
fre
,
refi
i
, as
QRnWhT
Rjij if frefi
ij
i
=−
(14.17)
Thus, when dealing with a gas containing a ...