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Improving the performance of household refrigerating appliances through the integration of phase change materials in the context of the new global refrigerator standard IEC 62552:2015.

Amélioration des performances des équipements frigorifiques domestiques par l'intégration de matériaux à changement de phase dans le cadre de la nouvelle norme mondiale IEC 62552:2015 relative aux réfrigérateurs.

Auteurs : SONNENREIN G., BAUMHÖGGER E., ELSNER A., MORBACH A., NEUKOTTER M., PAUL A., VRABEC J.

Type d'article : Article de la RIF

Résumé

The influence of latent heat storage elements on the cooling performance and the temperature rise time of household refrigerating appliances is studied experimentally in the context of the “new global refrigerator standard” IEC 62552:2015. In addition to the daily energy consumption, this international standardization introduced performance tests for cooling capacity and temperature rise time. While the cooling capacity has long been anchored in various test procedures of consumer organizations, the temperature rise time, which has only been tested on freezers so far, will be a decisive factor in the future. Moreover, the need for so-called "smart appliances" that may balance power consumption is increasing since such devices may compensate the volatility of renewable energies and thus stabilize the power grid. Against this background, eight commercial household refrigerators and refrigerator-freezers are equipped with polymer-bound phase change materials (PCM) and their performance is determined under the new standard test conditions. The results show that the introduction of PCM increases the cooling capacity by up to 33 % and also increases the temperature rise time by up to 145 %, without affecting power consumption, as compared to the unmodified refrigeration appliances.

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Format PDF

Pages : 448-456

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Détails

  • Titre original : Improving the performance of household refrigerating appliances through the integration of phase change materials in the context of the new global refrigerator standard IEC 62552:2015.
  • Identifiant de la fiche : 30027818
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 119
  • Date d'édition : 11/2020
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2020.07.025
  • Disponible à la bibliothèque de l'IIF

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