Strutt|Input Data|Empirical|Pump inserts sound power levels into the active row of the worksheet.
Sound power levels have been calculated from estimated sound pressure levels generated by a pump, at a distance of 1m from its surface where sound pressure levels are calulated by:
| Speed Range (rpm) | Under 75 kW | Above 75 kW |
| 3000-3600 | `72 + 10log_10(kW)` | `86 + 3log_10(kW)` |
| 1600-1800 | `75 + 10log_10(kW)` | `89 + 3log_10(kW)` |
| 1000-1500 | `70 + 10log_10(kW)` | `84 + 3log_10(kW)` |
| 450-900 | `68 + 10log_10(kW)` | `82 + 3log_10(kW)` |
The octave band sound pressure levels have then been calulated by subtracting the corrections in Table 11.11 Bies and Hansen.
References: