Application and Simulation of Micro-Perforated Panels in HVAC Systems 2018-01-1514
To 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.
Citation: Floss, S., Kaltenbacher, M., and Karlowatz, G., "Application and Simulation of Micro-Perforated Panels in HVAC Systems," SAE Technical Paper 2018-01-1514, 2018, https://doi.org/10.4271/2018-01-1514. Download Citation
Author(s):
Sebastian Floss, Manfred Kaltenbacher, Gerhard Karlowatz
Affiliated:
Vienna University of Technology, Liebherr-Transportation Systems GmbH
Pages: 8
Event:
10th International Styrian Noise, Vibration & Harshness Congress: The European Automotive Noise Conference
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Heating, ventilation, and air conditioning systems (HVAC)
Acoustics
Noise
Fibers
Foams
Simulation and modeling
Frames
Durability
Optimization
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