Tube Bundle Layout: triangular_1.33
Tube bundle layout constants (K1, n1) for shell-and-tube heat exchanger design — square and triangular pitch at various tube passes per Coulson & Richardson Table 12.3
| pitch type | tube passes | K1 (dimensionless) | description | n1 (dimensionless) | pitch ratio (dimensionless) |
|---|---|---|---|---|---|
| triangular_1.33 | 1 | 0.319 | Triangular pitch pt=1.33do; 1 tube pass; Db=do*(Nt/K1)^(1/n1) | 2.142 | 1.33 |
| triangular_1.33 | 2 | 0.249 | Triangular pitch pt=1.33do; 2 tube passes | 2.207 | 1.33 |
| triangular_1.33 | 4 | 0.175 | Triangular pitch pt=1.33do; 4 tube passes | 2.285 | 1.33 |
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