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Study on the sound insulation efficiency of ducts: testing methods and TL characteristics of no lugging ducts.

[In Japanese. / En japonais.]

Author(s) : MAEDA Y., SHIRAKI S., YASUOKA M.

Type of article: Article

Summary

The authors examined the measuring methods of transmission loss (TL) through the duct walls, and the TL for various shaped ducts in order to investigate TL characteristics of no lugging ducts with rectangular and circular shapes. The measurements were made in both directions of propagation through the duct walls.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1998-0462
  • Languages: Japanese
  • Source: Transaction of the Society of Heating, Air-conditioning and Sanitary Engineers of Japan - n. 63
  • Publication date: 1996/10
  • Document available for consultation in the library of the IIR headquarters only.

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