Document ID (ISN) | 26828 |
CIS number |
77-397 |
ISSN - Serial title |
Revue de l'industrie minérale - Supplément Mine |
Year |
1976 |
Convention or series no. |
|
Author(s) |
Faure G. |
Title |
Soundproofing of electrical auxiliary fans |
Original title |
Insonorisation des ventilateurs électriques d'aérage secondaire [in French] |
Bibliographic information |
July 1976, No.4, p.170-180. Illus. |
Abstract |
General remarks on auxiliary fans as a source of noise and the known control measures are followed by the results of research by the French Coalmining Research Centre (CERCHAR) to develop a standard outlet silencer suited to the great variety of fans used in French coalmines. Test bench and field studies of 3 available models selected in the first instance, and modification of 2 of these, permitted a reduction of 25-35dB(A). Solutions were also found for soundproofing the casing. To forestall loss of attenuation as a result of dust, renovation of the outlet silencers must be planned. |
Descriptors (primary) |
fans; mine ventilation; silencers; noise control |
Descriptors (secondary) |
sound absorption; airflow noise |
Document type |
- |
Subject(s) |
Noise, hearing and vibration
|
Broad subject area(s) |
|
Browse category(ies) |
Ventilation Compressed gases and pressure vessels Noise
|