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MEASUREMENTS ON SILENCERS IN DUCTS. 1.

[In German. / En allemand.]

Author(s) : ACKERMANN U.

Type of article: Article

Summary

THE FIRST OF A SERIES OF ARTICLES. POINTS OUT THAT SOUND-ABSORBING SPLITTERS INSTALLED IN AIR DUCTS TO REDUCE FAN NOISE ALSO PRODUCE SOUND THEMSELVES WHEN IN OPERATION AND CAUSE AN ADDITIONAL PRESSURE DROP NECESSITATING A LARGER FAN, WITH INCREASED ENERGY CONSUMPTION AND OPERATING COSTS. STATES THE SPLITTER MUST BE DESIGNED AND DIMENSIONED TO REDUCE NOISE WITH THE MINIMUM ADDITIONAL PRESSURE DROP. THIS REQUIRES PRECISE KNOWLEDGE OF THE SOUND ATTENUATION, FLOW NOISE AND PRESSURE DROP PRODUCED BY THE SOUND ABSORBER. PRESENTS RESULTS OF COMPARATIVE MEASUREMENTS FDOB AND COMPARES THE PERFORMANCE OF DIFFERENT SPLITTER TYPES. (INT. BUILD. SERV. ABSTR., GB., 26, N 4, 1991/07-08, 91-01053.

Details

  • Original title: [In German. / En allemand.]
  • Record ID : 1992-1311
  • Languages: German
  • Source: Bauphysik - vol. 13 - n. 3
  • Publication date: 1991/06
  • Document available for consultation in the library of the IIR headquarters only.

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