Application and Simulation of Micro-Perforated Panels in HVAC Systems Vienna University of Technology

Format:

Conference/Event

Author/Creator:

Floss, Floss, author.

Contributor:

Kaltenbacher, Manfred

Karlowatz, Gerhard

Conference Name:

10th International Styrian Noise, Vibration & Harshness Congress: The European Automotive Noise Conference (2018-06-20 : Graz, Austria)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2018

Summary:

AbstractTo reduce noise in a HVAC system for railway application the usage of micro-perforated panels (MPP) is proposed. MPPs offer some favorable characteristics, like robustness and durability in harsh environments and the possibility to optimize absorption in desired frequency bands. The underlying acoustic mechanism can be modelled via an equivalent fluid in accordance with the Johnson-Champoux-Allard (JCA) approach, treating the MPPs as a porous material with rigid frame. This allows to conduct the necessary acoustic pre-evaluation in complex HVAC application scenarios in order for the MPPs to substitute the commonly used foam and fibrous absorber materials

Notes:

Vendor supplied data

Publisher Number:

2018-01-1514

Access Restriction:

Restricted for use by site license