Characterisation of a Standard Fan Test Facility to Accommodate Reflection of Sound During Noise Measurements

Authors

  • C. du Plessis Stellenbosch University Author
  • S.J. Van der Spuy Stellenbosch University Author
  • H.C.R. Reuter Stellenbosch University Author

DOI:

https://doi.org/10.17159/2309-8988/2022/v38a3

Keywords:

fan noise, sound reflection

Abstract

Axial flow fans are fundamental to air-cooled condensers. While they provide the air flow for heat transfer, they also generate noise, which is a growing environmental concern. Sound reflections are characterised in an existing fan performance test facility, which does not conform to fan noise measurement standards. Corrections to the measured SPL spectrum is deduced along with the uncertainty in noise measurements. Corrections are compared to a reflection correction standard relating to buildings. This methodology can be repeated for other fan test facilities which do not comply with noise measurement standards.

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Author Biographies

  • C. du Plessis, Stellenbosch University

    Postdoctoral researcher. Department of Mechanical and Mechatronic Engineering, Stellenbosch University, Stellenbosch

  • S.J. Van der Spuy, Stellenbosch University

    SAIMechE Member, Professor. Department of Mechanical and Mechatronic Engineering, Stellenbosch University, Stellenbosch

  • H.C.R. Reuter, Stellenbosch University

    Extraordinary Professor. Department of Mechanical and Mechatronic Engineering, Stellenbosch University, Stellenbosch

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Published

13-09-2022

Issue

Vol. 38 (2022)

Section

Articles

License

Copyright (c) 2022 C. du Plessis, S.J. Van der Spuy, H.C.R. Reuter (Author)

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

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How to Cite

“Characterisation of a Standard Fan Test Facility to Accommodate Reflection of Sound During Noise Measurements” (2022) R&D Journal, 38, pp. 24–30. doi:10.17159/2309-8988/2022/v38a3.