Insulated Steam Pipes - Condensate Generated (kg/h per 100m)
Heat loss from steam pipes generates condensate which must be drained from the system.
The diagram and table below can be used to indicate condensate generated due to heat loss in insulated steam pipes.
| Steam Pressure (bar) | Condensate Generation (kg/h per 100 m) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Pipe Size (mm) | |||||||||
| 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | |
| 0.7 | 9 | 10 | 13 | 16 | 19 | 24 | 30 | 36 | 44 |
| 2 | 11 | 13 | 16 | 20 | 24 | 29 | 37 | 46 | 55 |
| 4 | 15 | 18 | 21 | 28 | 37 | 42 | 51 | 63 | 75 |
| 7 | 18 | 22 | 26 | 32 | 41 | 48 | 60 | 75 | 89 |
| 12 | 24 | 28 | 34 | 39 | 49 | 57 | 79 | 99 | 117 |
| 16 | 29 | 35 | 43 | 54 | 67 | 80 | 99 | 123 | 147 |
| 20 | 31 | 38 | 46 | 57 | 71 | 83 | 105 | 131 | 155 |
| 28 | 34 | 41 | 50 | 63 | 78 | 92 | 117 | 145 | 173 |
| 35 | 41 | 50 | 59 | 74 | 92 | 110 | 137 | 172 | 204 |
| 42 | 45 | 59 | 66 | 83 | 103 | 124 | 155 | 193 | 229 |
- 1 inch = 25.4 mm
The table is based on a surrounding temperature of 20 oC and 80% insulation efficiency compared with uninsulated pipes.
At a surrounding temperature -20 oC approximately 50% condensate load should be added.
