Identification of air leakage in a household heat pump tumble dryer

Pero Gatarić (Author), Brane Širok (Author), Jurij Gostiša (Author)

Abstract

Leakage of air in tumble dryers is an important parameter regarding the energy efficiency of the drying process. In general, tumble dryers are prone to leakage, therefore further investigation and optimization in this field is of great interest. This study investigates and quantifies leakage of air within the closed-loop system of an in-situ household heat pump tumble dryer. Each potential leakage location was characterized by leakage curve obtained either by isolated or cumulative measurements using system pressurization method. Based on the static pressure distribution within the closed-loop system, the leakage outflow and inflow were quantified. The leakage of air at the rear and front drum seal was evaluated with and without drum movement. The results indicated the highest leakage outflow rate at the heat pump housing, which represents 12,6% of the total drying air flow rate within the closed-loop system. Sealing heat pump housing improved the condensation efficiency from B to A class according to the IEC 61121.

Keywords

heat pumps;tumble dryers;leakage;energy efficiency;condensation efficiency;

Data

Language:	English
Year of publishing:	2022
Typology:	1.01 - Original Scientific Article
Organization:	UL FS - Faculty of Mechanical Engineering
UDC:	621.577:648.336
COBISS:	108705027
ISSN:	0737-3937
Views:	24
Downloads:	10
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	Slovenian
Secondary keywords:	sušilni stroji;toplotne črpalke;netesnost;energetska učinkovitost;merilne metode;
Type (COBISS):	Article
Pages:	str. 3622-3630
Volume:	ǂVol. ǂ40
Issue:	ǂiss. ǂ16
Chronology:	2022
DOI:	10.1080/07373937.2022.2073596
ID:	17623730