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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