Duct Friction Loss: 42
Duct friction loss data — pressure drop, velocity, and friction factors for round ducts at various diameters and airflows
| diameter in | velocity fpm | airflow cfm (cfm) | diameter m (m) | dp pa per m (Pa/m) | friction factor (dimensionless) | friction rate inwg per 100ft (inWG/100ft) | model | reynolds number (dimensionless) | roughness m (m) | velocity m s (m/s) |
|---|---|---|---|---|---|---|---|---|---|---|
| 42 | 600 | 5,772.68 | 1.0668 | 0.083219 | 0.015872 | 0.010193 | Darcy-Weisbach + Haaland | 216,312.7 | 0.00009 | 3.048 |
| 42 | 800 | 7,696.9 | 1.0668 | 0.141486 | 0.015179 | 0.01733 | Darcy-Weisbach + Haaland | 288,416.9 | 0.00009 | 4.064 |
| 42 | 1,000 | 9,621.13 | 1.0668 | 0.214092 | 0.0147 | 0.026224 | Darcy-Weisbach + Haaland | 360,521.1 | 0.00009 | 5.08 |
This is a sample. Search the full duct friction loss dataset and 300+ more by creating a free account and accessing the database.
Get started for FREE