Research Article
Experimental Characterisation of the Far-Field Noise in Axial Fans Fitted with Shaped Tip End-Plates
Table 2
Comparison of acoustic performance.
| | Datum fan | TF fan | MVB fan | Volume flow | Unweighted | A weighted | Unweighted | A weighted | Unweighted | A weighted | | | | | | | | m2/s | dB | dB(A) | dB | dB(A) | dB | dB(A) |
| 8 | 100,1 | 92,5 | 96,7 | 89,3 | 98,6 | 88,1 | 7 | 96,8 | 92,5 | 96,6 | 87,9 | 94,7 | 86,7 | 6 | 95,4 | 93,2 | 92,2 | 87,1 | 89,9 | 85,0 |
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