Table 4 Results obtained from K and kw for pipelines of different diameter and flow velocity
|
Diameter mm | Velocity (m s− 1) |
kb (h− 1) |
K (h− 1) |
kf (m h− 1) |
kw (m h− 1) |
kw (m d− 1) |
|---|---|---|---|---|---|---|
| 250 | 1.43 | 0.16 | 0.226 | 0.19 | 0.0046 | 0.11 |
| 200 | 1.09 | 0.16 | 0.222 | 0.15 | 0.0034 | 0.082 |
| 200 | 0.675 | 0.16 | 0.219 | 0.10 | 0.0033 | 0.080 |
| 160 | 1.51 | 0.16 | 0.271 | 0.21 | 0.0048 | 0.11 |
| 110 | 0.10 | 0.16 | 0.157 | 0.020 | 0.00004 | 0.0010 |
| 63 | 0.11 | 0.16 | 0.159 | 0.023 | 0.0001 | 0.0015 |