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Une nouvelle technologie de production de froid hybride à sorption-compression solide pour le transport et le stockage frigorifiques.

A novel hybrid solid sorption-compression refrigeration technology for refrigerated transportation and storage.

Auteurs : GAO P., WANG L. W., ZHU F. Q.

Type d'article : Article de la RIF

Résumé

The conventional solid sorption refrigeration system could hardly utilize hot water below 90 °C as the driving heat source, and obtain a refrigerating temperature below -10 °C at a condensing temperature above 35 °C, which severely restricts its scope of application. Additionally, for vapor-compression refrigeration systems, low evaporating temperatures inevitably result in high power consumption and low coefficient of performance (COP). To solve these problems, a novel hybrid solid sorption-compression refrigeration cycle is proposed, and a compressor is added between sorption bed and condenser to control desorption pressure, allowing sorbent to regenerate at a lower heat source temperature. At a condensing temperature of 35 °C, the hybrid cycle utilizing the working pair of SrCl2NH3 can operate even at a heat source temperature of 60 °C, while for the conventional one, heat source temperature must exceed 98.6 °C. Its COP is almost independent of the evaporating temperature, mainly benefiting from the constant pressure ratio and compressor power consumption at a given heat source temperature. Furthermore, the hybrid system can effectively recover the waste heat of engine jacket water, thereby providing refrigerating capacity for refrigerated trucks. Under the conditions of 50 °C condensing temperature and -25 °C evaporating temperature, its COP is up to 5.0, while the value of conventional system is only 1.3. Moreover, the hybrid system can utilize 60–90 °C solar hot water to provide refrigerating capacity for refrigerated warehouses. Ultimately, the novel hybrid cycle not only effectively extends the application range of the solid sorption cycle, but also features a higher COP compared to the vapor-compression one.

Documents disponibles

Format PDF

Pages : 1-10

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : A novel hybrid solid sorption-compression refrigeration technology for refrigerated transportation and storage.
  • Identifiant de la fiche : 30028103
  • Langues : Anglais
  • Sujet : Technologie
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 122
  • Date d'édition : 02/2021
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2020.10.041
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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