Open Access
Table A.1.
Sound power levels of compressor noise LW,comp using the example of the demonstrator heat pump at standard rating condition A7W55. The overall sound power level is calculated from 50 Hz to 16 kHz.
| nc | LW | LWA | LW−LWA | TAir | Tc |
|---|---|---|---|---|---|
| rpm | dB | dB(A) | dB | °C | °C |
| 5500 | 57.8 | 52.4 | 5.4 | 6.5 | 55.2 |
| 5400 | 56.3 | 51.4 | 4.9 | 7.5 | 55.6 |
| 5100 | 55.1 | 50.3 | 4.8 | 7.4 | 55.4 |
| 5000 | 54.7 | 50.2 | 4.5 | 7.4 | 55.2 |
| 4800 | 53.6 | 49.7 | 3.9 | 7.0 | 54.7 |
| 4500 | 55.0 | 51.2 | 3.8 | 6.5 | 55.2 |
| 4200 | 54.3 | 48.4 | 5.9 | 6.8 | 55.0 |
| 4000 | 57.3 | 48.8 | 8.5 | 6.6 | 54.9 |
| 3900 | 55.5 | 48.5 | 7.0 | 6.6 | 55.0 |
| 3600 | 53.4 | 48.4 | 5.0 | 7.5 | 54.7 |
| 3500 | 53.8 | 47.3 | 6.5 | 7.5 | 55.2 |
| 3300 | 55.5 | 48.1 | 7.4 | 6.9 | 54.8 |
| 3000 | 54.4 | 47.7 | 6.7 | 6.7 | 54.7 |
| 2700 | 52.0 | 47.0 | 5.0 | 6.9 | 55.3 |
| 2500 | 51.3 | 45.8 | 5.5 | 6.9 | 54.8 |
| 2400 | 50.4 | 46.0 | 4.4 | 6.9 | 54.5 |
| 2100 | 51.3 | 45.6 | 5.7 | 6.7 | 54.5 |
| 2000 | 51.5 | 45.1 | 6.4 | 6.7 | 54.2 |
| 1800 | 49.7 | 44.6 | 5.1 | 6.6 | 55.4 |
| 1500 | 48.7 | 43.1 | 5.6 | 6.6 | 54.3 |
| 1200 | 49.1 | 42.5 | 6.6 | 6.6 | 54.1 |
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