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Identification of air leakage in a household heat pump tumble dryer
ID Gatarić, Pero (Author), ID Širok, Brane (Author), ID Gostiša, Jurij (Author)

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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.

Language:English
Keywords:heat pumps, tumble dryers, leakage, energy efficiency, condensation efficiency
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:Str. 3622–3630
Numbering:Vol. 40, no. 16
PID:20.500.12556/RUL-143671 This link opens in a new window
UDC:621.577:648.336
ISSN on article:0737-3937
DOI:10.1080/07373937.2022.2073596 This link opens in a new window
COBISS.SI-ID:108705027 This link opens in a new window
Publication date in RUL:06.01.2023
Views:321
Downloads:49
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Record is a part of a journal

Title:Drying technology
Shortened title:Dry. technol.
Publisher:Taylor & Francis
ISSN:0737-3937
COBISS.SI-ID:5922823 This link opens in a new window

Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.

Secondary language

Language:Slovenian
Keywords:sušilni stroji, toplotne črpalke, netesnost, energetska učinkovitost, merilne metode

Projects

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

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