### Strutt Help

Empirical Pump Noise Prediction    1/1

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:

• Bies, D., Hansen, C., engineering Noise Control pp523-524