Development of probes to measure in-duct sound pressure levels of a gas turbine exhaust

Authors

  • Mal P. Sacks Tacet Engineering Ltd, Toronto, Canada
  • John Buttell Tacet Engineering Ltd, Toronto, Canada

Keywords:

Acoustic wave velocity, Gas turbines, Microphones, Probes, Turbulent flow, In duct sound pressure levels, In situ silencer insertion loss measurements

Abstract

The ability to measure in-duct sound power levels at the exhaust flange of a gas turbine allows in situ verification of gas turbine exhaust sound power levels and verification of silencer dynamic insertion loss. The primary requirement for a measurement of sound power level is a procedure that will measure valid sound pressure levels in a high velocity, hot gas, highly turbulent turbine exhaust flow. This paper describes the current state of the development of two specialized wall mounted microphone probes: a perpendicular tube and a slit tube.

Additional Files

Published

1997-12-01

How to Cite

1.
Sacks MP, Buttell J. Development of probes to measure in-duct sound pressure levels of a gas turbine exhaust. Canadian Acoustics [Internet]. 1997 Dec. 1 [cited 2025 Feb. 16];25(4):29-30. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1109

Issue

Vol. 25 No. 4 (1997)

Section

Technical Articles

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