Table 2.
Equivalent diameter D p and number N of parallel pipes for a porous bed with D = 25 mm.
| D p (mm) | 12 | 10 | 8 |
|---|---|---|---|
| N | 25 | 40 | 78 |
| Total cross sectional area of pipes (mm2) | 2826.0 | 3140.0 | 3918.7 |
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