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SOUND INSULATION OF VENTILATION DUCTS.

[In Swedish. / En suédois.]

Author(s) : AKERLOF L., LARSSON P.

Type of article: Periodical article

Summary

DESCRIBES EXPERIMENTS IN WHICH THE SOUND REDUCTION INDEX (SRI) FOR VENTILATION DUCTS WITH AND WITHOUT SOUND INSULATION HAS BEEN MEASURED IN THE LABORATORY ON A 1,000 X 250 MM DUCT. STATESTHE MEASURED SRI FOR AN UNINSULATED DUCT IS IN GOOD AGREEMENT WITH VALUES PREVIOUSLY PUBLISHED BY ASHRAE. ALSO GIVES THE SRI FOR A DUCT CLAD WITH A 100 MM MINERAL WOOL MAT, 140 KG/M3 AND WITH 70 MM MESH REINFORCED MAT, 100 KG/M3. COMPARES THE MEASURED SOUND PRESSURE LEVEL WITH THAT CALCULATED BY TRADITIONAL METHODS. FINDS SOME LARGE DISCREPANCIES. (INT. BUILD. SERV. ABSTR., GB., 26, N 3, 1991/05-06, 91-00745.

Details

  • Original title: [In Swedish. / En suédois.]
  • Record ID : 1992-0753
  • Languages: Swedish
  • Source: Swed. Counc. Build. Res. - CBR R96:1990; 29 p.; fig.
  • Publication date: 1990
  • Document available for consultation in the library of the IIR headquarters only.

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