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CHALLENGES AND OPPORTUNITIES FOR FLOW NOISE PREDICTION IN HVAC SYSTEMS
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.ORCID iD: 0000-0002-6811-056X
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.ORCID iD: 0000-0002-9061-4174
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.ORCID iD: 0000-0001-7898-8643
2015 (English)Conference paper, Published paper (Refereed)
Abstract [en]

This paper investigates the possibilities of noise prediction in Heating Ventilation and Air Conditioning (HVAC) systems using semi empirical scaling laws. An approach is presented where the general noise reference spectra are combined with Reynolds Average Navier Stokes (RANS) simulations. Focus is at applying the suggested noise prediction approach to common HVAC components but also to discuss the properties of the prediction model, e.g. radiation characteristics and chosen reference spectra. A model is presented, using a momentum flux assumption of the noise sources, which is validated by a range of HVAC components of both high and low pressure loss.

Place, publisher, year, edition, pages
2015.
National Category
Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:kth:diva-166205OAI: oai:DiVA.org:kth-166205DiVA: diva2:809703
Conference
INTERNATIONAL CONFERENCE ON FAN NOISE, TECHNOLOGY AND NUMERICAL METHODS, 15-17 APRIL 2015 L’Espace Tête d’Or, Lyon, France
Funder
Swedish Research Council Formas, 245-2011-1615
Note

QC 20150615

Available from: 2015-05-05 Created: 2015-05-05 Last updated: 2015-06-15Bibliographically approved

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Kårekull, OscarEfraimsson, GunillaÅbom, Mats

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