
P a g e 2 0 • D R I - S T E E M D e s i g n G u i d e
D R I - S T E E M D e s i g n G u i d e • P a g e 2 1
Table 21-1:
Steam loss in lbs/hr/ft
2
and kg/h/m
2
of duct area at 55 °F or 13 °C
duct temperature for MINI-BANK
®
jacketed steam injection
humidifiers
Duct air velocity
3" or 76 mm tube centers
Insulated Noninsulated
fpm m/s lbs/hr/ft
2
kg/h/m
2
lbs/hr/ft
2
kg/h/m
2
500 2.5 1.0 5.1 2.0 9.8
750 3.8 1.4 6.7 2.8 13.5
1000 5.1 1.6 7.9 3.0 14.4
1250 6.4 1.6 7.6 3.1 15.0
1500 7.6 1.7 8.1 3.3 16.0
1750 8.9 1.7 8.5 3.5 16.9
2000 10.2 1.8 8.9 3.6 17.8
2250 11.4 1.9 9.2 3.7 18.2
2500 12.7 1.9 9.2 3.7 18.2
2750 14.0 1.9 9.2 3.7 18.2
3000 15.2 1.9 9.2 3.7 18.2
Steam loss in lbs/hr/ft
2
and kg/h/m
2
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