ShareEFFECTS OF BAND WIDTH AND SPECTRUM ON SOUND ABSORBER EFFICIENCY IN DUCTS.
[In German. / En allemand.]
Author(s) : ACKERMANN U.
Type of article: Article
Summary
THE NEW DIN STANDARD (45 646) SPECIFIES TEST BENCH MEASUREMENTS ON SOUND ABSORPTION EFFICIENCY, AIR FLOW NOISE AND PRESSURE LOSS IN SOUND ABSORBERS USED IN AIR CONDITIONING AND VENTILATING INSTALLATIONS. THIS STANDARD RECOMMENDS 3 STEPS OF SOUND ABSORPTION MEASUREMENTS ALTHOUGH USERS MAY FIND OTHER BAND WIDTHS BETTER SUITED TO THEIR PURPOSES. THE MEASURED LEVELS DEPEND UPON THE SPECTRUM OF THE NOISE FIELD TO BE ATTENUATED AS ALSO ON THE FILTER BAND WIDTH TO ANALYSE THE SIGNAL OF THE MICROPHONE.
Details
- Original title: [In German. / En allemand.]
- Record ID : 1989-2403
- Languages: German
- Source: Klima Kälte Heiz. - vol. 17 - n. 1
- Publication date: 1989
- Document available for consultation in the library of the IIR headquarters only.
Links
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Indexing
- Themes: Other air-conditioning equipment
- Keywords: Regulations; Noise; Measurement; FRG; Performance; Air conditioning; Pressure drop
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CONSIDERATIONS IN THE DESIGN OF AIR CONDITIONIN...
- Author(s) : MASON M.
- Date : 1989/10
- Languages : English
- Source: H&V Eng. - vol. 62 - n. 697
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NOUVELLE METHODE D'ESSAI DES FILTRES A AIR DE V...
- Author(s) : MICHEL J.
- Date : 1989/12
- Languages : French
- Source: Promoclim - vol. 20 - n. 7
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AIR HANDLING: SYSTEM EFFECT.
- Author(s) : PARKES R. S.
- Date : 1989/07
- Languages : English
View record
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AIR FILTERS IN AIR CONDITIONING INSTALLATIONS.
- Date : 1981
- Languages : German
- Source: Tech. Bau - n. 2
View record
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Are you using basic fan static pressure calcula...
- Author(s) : SEVERINI S. C.
- Date : 1991/08
- Languages : English
- Source: Consult. Specif. Eng. - vol. 10 - n. 2
View record