Experimental characterization of a household heat pump tumble dryer noise

Luka Curovic (Avtor), Tadej Novaković (Avtor), Pero Gatarić (Avtor), Jure Murovec (Avtor), Jurij Prezelj (Avtor)

Povzetek

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.

Ključne besede

heat pumps;tumble dryers;noise source identification;sound power level reduction;

Podatki

Jezik:	Angleški jezik
Leto izida:	2022
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	UL FS - Fakulteta za strojništvo
UDK:	621.577:534.83:648.336
COBISS:	88357379
ISSN:	0003-682X
Št. ogledov:	235
Št. prenosov:	77
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Slovenski jezik
Sekundarne ključne besede:	sušilni stroji;toplotne črpalke;identifikacija zvočnih virov;zmanjševanje zvočne moči;
Vrsta dela (COBISS):	Članek v reviji
Strani:	str. 1-9
Zvezek:	ǂVol. ǂ188
Čas izdaje:	Jan. 2022
DOI:	10.1016/j.apacoust.2021.108543
ID:	14075037