Industrial application of simplesilence technology: Evaporator fan noise control

Authors

  • Anthony Gérard Soft DB, 1240 Rue Beaumont, Montréal, QC H3P 3E5, Canada
  • Michel Pearson Soft DB, 1040 Avenue Belvédère, Québec, QC GlS 3G3, Canada

Keywords:

Acoustic variables control, Cold storage, Computational fluid dynamics, Evaporators, Industrial applications, Blade forces, Blade passage frequency, Broadband noise, CFD simulations, Cold storage rooms, Environmental noise, Fan noise, Flow topology, Ice accretion, Low frequency, Low-frequency tones, Narrow bands, Non-uniform flows, Residential areas, Tonal noise, Tonal noise control, Upstream flow

Abstract

Tonal noise control from evaporator fans used for cooling a cold storage room is described. The low frequency tone at blade passage frequency can result in environmental noise penalty in the residential area near the cold storage room. Tonal noise originates from non-uniform flow that causes circumferential varying blade forces and gives rise to considerably larger radiated dipolar sound at the BPF and its harmonics. For the evaporator studied in this paper, the primary non uniform flow mainly came from the motor struts and the ice accretion in the upstream flow field of the fan. The obstruction probably controlled these instabilities so that the narrowband peak and low frequency broadband noise were decreased. CFD simulations could give more insight in the flow topology without and with the obstruction.

Additional Files

Published

2012-09-01

How to Cite

1.
Gérard A, Pearson M. Industrial application of simplesilence technology: Evaporator fan noise control. Canadian Acoustics [Internet]. 2012 Sep. 1 [cited 2024 Oct. 7];40(3):56-7. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/2537

Issue

Vol. 40 No. 3 (2012)

Section

Proceedings of the Acoustics Week in Canada

License

Author Licensing Addendum

This Licensing Addendum ("Addendum") is entered into between the undersigned Author(s) and Canadian Acoustics journal published by the Canadian Acoustical Association (hereinafter referred to as the "Publisher"). The Author(s) and the Publisher agree as follows:

  1. Retained Rights: The Author(s) retain(s) the following rights:

    • The right to reproduce, distribute, and publicly display the Work on the Author's personal website or the website of the Author's institution.
    • The right to use the Work in the Author's teaching activities and presentations.
    • The right to include the Work in a compilation for the Author's personal use, not for sale.

  2. Grant of License: The Author(s) grant(s) to the Publisher a worldwide exclusive license to publish, reproduce, distribute, and display the Work in Canadian Acoustics and any other formats and media deemed appropriate by the Publisher.

  3. Attribution: The Publisher agrees to include proper attribution to the Author(s) in all publications and reproductions of the Work.

  4. No Conflict: This Addendum is intended to be in harmony with, and not in conflict with, the terms and conditions of the original agreement entered into between the Author(s) and the Publisher.

  5. Copyright Clause: Copyright on articles is held by the Author(s). The corresponding Author has the right to grant on behalf of all Authors and does grant on behalf of all Authors, a worldwide exclusive license to the Publisher and its licensees in perpetuity, in all forms, formats, and media (whether known now or created in the future), including but not limited to the rights to publish, reproduce, distribute, display, store, translate, create adaptations, reprints, include within collections, and create summaries, extracts, and/or abstracts of the Contribution.