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Ventilation Duct Stack Pressure Calculator
Units
Blocks shown as light blue are editable
stack pressure at reference height p
r
=
in - H
2
O
air density
ρ =
lbm/ft
3
gravitational acceleration g =
ft/s
2
height above reference plane H =
ft
Calculated Results
Eq 1 stack pressure p
s
=
lb/ft
2
·h
Pressure Conversion
Units
Convert from:
psi
Convert to:
in - H
2
O
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