Performance evaluation of duct bends

Authors

  • Ramani Ramakrishnan Department of Architectural Science, Ryerson University, Toronto, ON, Canada
  • Romain Dumoulin 3126 Blvd. Rosemont, Montreal, QC, Canada

Keywords:

Acoustic fields, Acoustical performance, Duct bends, Finite element techniques, Liner material, Material property, Multi-dimensional model, Multi-physics, Performance evaluation

Abstract

The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) have developed simple steps to evaluate the attenuation of duct fittings such as elbows, lined and unlined, based on the results of Ver. The software applies finite element techniques to solve for the acoustical performances. The model is also capable of using the material properties of the liner materials. The liner is considered to be bulk reacting. Preliminary results of the multi-dimensional model will be presented in this paper. The current investigation has made use of COMSOL, a powerful multi-physics numerical analysis tool and has attempted to provide results based on multi-dimensional analysis. A given acoustic field was assumed at the inlet of the elbow and the outlet is connected to a long anechoic termination.

Additional Files

Published

2011-09-01

How to Cite

1.
Ramakrishnan R, Dumoulin R. Performance evaluation of duct bends. Canadian Acoustics [Internet]. 2011 Sep. 1 [cited 2025 Feb. 13];39(3):144-5. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/2452

Issue

Vol. 39 No. 3 (2011)

Section

Proceedings of the Acoustics Week in Canada

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