--- _id: '29208' abstract: - lang: eng text: The parameters required to calculate the energy efficiency of household refrigerating appliances (i.e. refrigerators, freezers and their combinations) are determined by standard measurements. According to regulations, these measurements are carried out when the appliances are new. It is known from previous studies that various technical aging mechanisms can increase electrical energy consumption by up to 36 % over a product lifespan of 18 years. In order to determine the time dependence of the energy consumption of household refrigerating appliances, repeated measurements are carried out in this work. Eleven new appliances are examined under standard measurement conditions. After just two years of operation, an additional energy consumption of up to 11 % is determined. Furthermore, 21 older appliances that had previously been measured in new condition are tested again after up to 21 years of operation. For these older appliances, an average increase of energy consumption of 28 % is found. For individual appliances, the maximum increase is 36 %. An aging model is developed on the basis of these measurement results, which may help to predict the aging-related increase of energy consumption of household refrigerating appliances. This model shows an average increase in energy consumption of 27 % for an appliance age of 16 years. Supplemental performance tests of eight compressors do not show any significant aging effects related to these devices after two years of operation. Furthermore, measurements of the thermal conductivity of aged polyurethane foam test samples are carried out and an increase of its thermal conductivity of 26 % over a period of about three years is determined. article_number: '117992' author: - first_name: Andreas full_name: Paul, Andreas id: '7828' last_name: Paul - first_name: Elmar full_name: Baumhögger, Elmar id: '15164' last_name: Baumhögger - first_name: Andreas full_name: Elsner, Andreas id: '16124' last_name: Elsner - first_name: Michael full_name: Reineke, Michael id: '24603' last_name: Reineke - first_name: Christian full_name: Hueppe, Christian last_name: Hueppe - first_name: Rainer full_name: Stamminger, Rainer last_name: Stamminger - first_name: Heike full_name: Hoelscher, Heike last_name: Hoelscher - first_name: Hendrik full_name: Wagner, Hendrik last_name: Wagner - first_name: Ulrich full_name: Gries, Ulrich last_name: Gries - first_name: Wolfgang full_name: Becker, Wolfgang last_name: Becker - first_name: Jadran full_name: Vrabec, Jadran last_name: Vrabec citation: ama: Paul A, Baumhögger E, Elsner A, et al. Impact of aging on the energy efficiency of household refrigerating appliances. Applied Thermal Engineering. 2022;205. doi:10.1016/j.applthermaleng.2021.117992 apa: Paul, A., Baumhögger, E., Elsner, A., Reineke, M., Hueppe, C., Stamminger, R., Hoelscher, H., Wagner, H., Gries, U., Becker, W., & Vrabec, J. (2022). Impact of aging on the energy efficiency of household refrigerating appliances. Applied Thermal Engineering, 205, Article 117992. https://doi.org/10.1016/j.applthermaleng.2021.117992 bibtex: '@article{Paul_Baumhögger_Elsner_Reineke_Hueppe_Stamminger_Hoelscher_Wagner_Gries_Becker_et al._2022, title={Impact of aging on the energy efficiency of household refrigerating appliances}, volume={205}, DOI={10.1016/j.applthermaleng.2021.117992}, number={117992}, journal={Applied Thermal Engineering}, publisher={Elsevier BV}, author={Paul, Andreas and Baumhögger, Elmar and Elsner, Andreas and Reineke, Michael and Hueppe, Christian and Stamminger, Rainer and Hoelscher, Heike and Wagner, Hendrik and Gries, Ulrich and Becker, Wolfgang and et al.}, year={2022} }' chicago: Paul, Andreas, Elmar Baumhögger, Andreas Elsner, Michael Reineke, Christian Hueppe, Rainer Stamminger, Heike Hoelscher, et al. “Impact of Aging on the Energy Efficiency of Household Refrigerating Appliances.” Applied Thermal Engineering 205 (2022). https://doi.org/10.1016/j.applthermaleng.2021.117992. ieee: 'A. Paul et al., “Impact of aging on the energy efficiency of household refrigerating appliances,” Applied Thermal Engineering, vol. 205, Art. no. 117992, 2022, doi: 10.1016/j.applthermaleng.2021.117992.' mla: Paul, Andreas, et al. “Impact of Aging on the Energy Efficiency of Household Refrigerating Appliances.” Applied Thermal Engineering, vol. 205, 117992, Elsevier BV, 2022, doi:10.1016/j.applthermaleng.2021.117992. short: A. Paul, E. Baumhögger, A. Elsner, M. Reineke, C. Hueppe, R. Stamminger, H. Hoelscher, H. Wagner, U. Gries, W. Becker, J. Vrabec, Applied Thermal Engineering 205 (2022). date_created: 2022-01-10T13:35:45Z date_updated: 2023-04-27T11:08:36Z department: - _id: '728' - _id: '155' - _id: '9' doi: 10.1016/j.applthermaleng.2021.117992 intvolume: ' 205' keyword: - Industrial and Manufacturing Engineering - Energy Engineering and Power Technology language: - iso: eng publication: Applied Thermal Engineering publication_identifier: issn: - 1359-4311 publication_status: published publisher: Elsevier BV quality_controlled: '1' status: public title: Impact of aging on the energy efficiency of household refrigerating appliances type: journal_article user_id: '7828' volume: 205 year: '2022' ...