Emerson Daniel 3410 Series - Page 158

142 MISCELLANEOUS CONVERSION FACTORS
Miscellaneous equations Daniel 3410 Series Gas Ultrasonic Meter Operations Manual
January 2018 3-9000-777 Rev E
Volumetric Flow Rate
Equation B-3 Volumetric Flow Rate - U.S. Customary Units
where
Equation B-4 Volumetric Flow Rate - Metric Units
where
=
volumetric flow rate (ft
3
/h) (QMeter)
=
gas flow velocity (ft/s) (AvgFlow)
=
geometric constant, pi (dimensionless) (3.14159265...)
=
pipe inside diameter (in) (PipeDiam)
=
volumetric flow rate (m
3
/h) (QMeter)
=
gas flow velocity (m/s) (AvgFlow)
=
geometric constant, pi (dimensionless) (3.14159265...)
=
pipe inside diameter (m) (PipeDiam)
Q
ft
3
hr⁄
V
ft s⁄
3600× shr⁄
πD
in
2
4
-----------
1ft
12in
-----------
2
××=
V
ft s⁄
D
in
2
×
3600 π×
412
2
×
---------------------
sft
2
hr in
2
--------------
×=
V
ft s⁄
D
in
2
× 19.63495 sft
2
()hr in
2
()⁄()×=
Q
ft
3
hr⁄
V
ft s⁄
π
D
in
Q
m
3
hr⁄
V
ms⁄
3600× shr⁄
πD
m
2
4
-----------
×=
V
ms⁄
D
m
2
×
3600 π×
4
---------------------
shr⁄()×=
V
ms⁄
D
m
2
× 2827.433 shr⁄()×=
Q
m
3
hr⁄
V
ms⁄
π
D
m