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Main Title: Investigating the real life energy consumption of refrigeration appliances in Germany: Are present policies sufficient?
Author(s): Hueppe, Christian
Geppert, Jasmin
Moenninghoff-Juessen, Julia
Wolff, Lena
Stamminger, Rainer
Paul, Andreas
Elsner, Andreas
Vrabec, Jadran
Wagner, Hendrik
Hoelscher, Heike
Becker, Wolfgang
Gries, Ulrich
Freiberger, Alfred
Type: Article
Abstract: Domestic refrigeration appliances are standard household commodities. Although policies, such as the energy labelling, prompted technical improvements and decreased appliance energy consumption throughout recent decades, important parameters were disregarded. These refer to the efficiency loss over time and the consumer behaviour. The objective of this contribution was to develop a dynamic energy model to determine the power consumption of refrigeration appliances considering degradation factors and behaviour. These were included by model parameters for direct consumer interactions, such as the storage behaviour, door openings and temperature setting, as well as indirect actions, e.g. exposing an appliance to specific temperature conditions at an installation site. For this, an online-survey was conducted to evaluate the consumer behaviour. A total of 706 consumers participated in the national questionnaire, serving as input for the dynamic energy model. It was found that the efficiency loss increases the power consumption by at least 1% annually, leading to an excess of 10% after 10 years of usage. Another important finding was that 32.5% of appliance's power consumption results from consumer behaviour, whereas the promotion of behavioural changes leads to a significant decrease of the consumer-induced consumption. Consequently, this study provides a tool to evaluate the impact of policies targeting refrigeration appliances, stressing that efficiency loss and behaviour should be integrated into future policy approaches.
Subject(s): energy efficiency
refrigeration appliances
dynamic modelling
consumer behaviour
energy savings
Issue Date: 18-May-2021
Date Available: 20-Jul-2021
Language Code: en
DDC Class: 660 Chemische Verfahrenstechnik
Sponsor/Funder: BMWi, 03ET1544A, Verbundvorhaben ALGE: Alterungsmechanismen von Haushaltskältegeräten - Teilprojekt: Bestimmung des Degenerationsverhaltens und Konstruktion der Geräte
Journal Title: Energy Policy
Publisher: Elsevier
Volume: 155
Article Number: 112275
Publisher DOI: 10.1016/j.enpol.2021.112275
EISSN: 1873-6777
ISSN: 0301-4215
TU Affiliation(s): Fak. 3 Prozesswissenschaften » Inst. Prozess- und Verfahrenstechnik » FG Thermodynamik und Thermische Verfahrenstechnik
Appears in Collections:Technische Universität Berlin » Publications

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