
202 Oxygen-Enhanced Combustion
a signicant mechanism in the majority of industrial
combustion processes and is only briey considered
here. Anumber of books are available specically on
convection heat transfer.
25–37
10.3.1 Forced Convection
Forced convection heat transfer occurs when a uid is
forcefully directed at or over a medium (liquid or solid)
and may be simply calculated using
(10.5)
where
q is the heat ux to the medium (Btu/h or kW)
h is the convective heat transfer coefcient (Btu/ft
2
-h-°F
or W/m
2
-K)
A is the surface area of the medium in contact with the
moving uid (ft
2
or m
2
)
t
f
is the uid temperature (°F or K)
t
m
is ...