Low-frequency pulsation from a package boiler

Research output: Contribution to conferencePaper

Abstract

A high-amplitude, low-frequency pulsation was emitted by a package boiler under certain operating conditions. Preliminary testing showed that the pulsation was at approximately 9 Hz and was only present when the firing rate of the boiler decreased below approximately 50% to 70% capacity. A series of dedicated measurements was made to identify the source of the pulsation, including measurements with microphones, accelerometers, and pressure transducers. Ultimately, the test team concluded that a thermoacoustic resonance was causing a feedback loop that linked the flame output of the boiler to the acoustic cavity in the furnace and duct system. A stack damper was installed to modify the acoustic properties of the duct system, and the pulsation was mitigated.

Original languageEnglish (US)
StatePublished - Jan 1 2018
Event47th International Congress and Exposition on Noise Control Engineering: Impact of Noise Control Engineering, INTER-NOISE 2018 - Chicago, United States
Duration: Aug 26 2018Aug 29 2018

Other

Other47th International Congress and Exposition on Noise Control Engineering: Impact of Noise Control Engineering, INTER-NOISE 2018
CountryUnited States
CityChicago
Period8/26/188/29/18

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

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    Dare, T. P., Beck, B. S., Bonness, W. K., Rufener, S., & Flynn, T. (2018). Low-frequency pulsation from a package boiler. Paper presented at 47th International Congress and Exposition on Noise Control Engineering: Impact of Noise Control Engineering, INTER-NOISE 2018, Chicago, United States.