Experimental characterization of a household heat pump tumble dryer noise

Čurović, Luka (author), Novaković, Tadej (author), Gatarić, Pero (author), Murovec, Jure (author), Prezelj, Jurij (author)

In this paper, an experimental approach for acoustic characterization of a household heat pump tumble dryer is developed. The main noise sources including BLDC motor, centrifugal fan, drain pump, and ventilation duct were identified using an acoustic camera survey based on beamforming, sound pressure level, directivity, and laser Doppler vibrometer vibration velocity measurements. In addition, noise reduction measures were taken, and sound power level and directivity measurements were used to evaluate the significance of the identified sources on the total noise emission. As a result, the A-weighted sound power level was reduced from 64.8 to 60.4 dB and the directivity pattern was improved. The proposed experimental approach for noise identification and the validation approach can be applied to other complex household appliances of similar size.

• Language: English
• Keywords: heat pumps, tumble dryers, noise source identification, sound power level reduction
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2022
• Number of pages: 9 str.
• Numbering: Vol. 188, art. 108543
• PID: 20.500.12556/RUL-133673
• UDC: 621.577:534.83:648.336
• ISSN on article: 0003-682X
• DOI: 10.1016/j.apacoust.2021.108543
• COBISS.SI-ID: 88357379
• Publication date in RUL: 08.12.2021

Record is a part of a journal

• Title: Applied acoustics
• Shortened title: Appl. Acoust.
• Publisher: Elsevier Science
• ISSN: 0003-682X
• COBISS.SI-ID: 24982016

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: sušilni stroji, toplotne črpalke, identifikacija zvočnih virov, zmanjševanje zvočne moči

Projects

• Funder: ARRS - Slovenian Research Agency
• Project number: P2-0401
• Name: Energetsko strojništvo