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Main Title: Determining the heat flow through the cabinet walls of household refrigerating appliances
Author(s): Paul, Andreas
Baumhögger, Elmar
Elsner, Andreas
Moczarski, Lukas
Reineke, Michael
Sonnenrein, Gerrit
Hueppe, Christian
Stamminger, Rainer
Hoelscher, Heike
Wagner, Hendrik
Gries, Ulrich
Freiberger, Alfred
Becker, Wolfgang
Vrabec, Jadran
Type: Article
Language Code: en
Abstract: The increase of the thermal conductivity of PUR foam in the insulation of the cabinet is an important cause for aging processes of household refrigerating appliances. To determine the influence of the PUR foam aging on energy consumption, the development of a new measurement method is necessary because current methods influence the aging behavior of household refrigerators and are therefore not applicable in general. Based on a latent heat sink, constructed as an ice water bucket, a new measurement method is developed to determine the k · A value over time. With this method, the k · A value of four household refrigerating appliances was determined over an interval of 14 months. The k · A value increased between 3.6 % and 11.5 % during this period.
Issue Date: 7-Oct-2020
Date Available: 24-Nov-2020
DDC Class: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
Subject(s): household refrigerating appliances
PUR foam
k · A value
measurement method
Sponsor/Funder: BMWi, 03ET1544A, Verbundvorhaben ALGE: Alterungsmechanismen von Haushaltskältegeräten
Journal Title: International Journal of Refrigeration
Publisher: Elsevier
Publisher Place: Amsterdam [u.a.]
Publisher DOI: 10.1016/j.ijrefrig.2020.10.007
EISSN: 1879-2081
ISSN: 0140-7007
Appears in Collections:FG Thermodynamik und Thermische Verfahrenstechnik » Publications

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