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Étude expérimentale sur un thermosiphon en boucle avec trois évaporateurs: phénomènes uniques de démarrage et d’oscillation.

Experimental investigation on a loop thermosyphon with three evaporators: Unique startup and oscillation phenomena.

Auteurs : ZHANG H., SHAO S., XU H., et al.

Type d'article : Article, Article de la RIF

Résumé

Loop thermosyphon with multiple evaporators has tremendous potential in applications that involve multiple heat sources. In this paper, a loop thermosyphon with three evaporators is investigated experimentally. Unique phenomena of startup and oscillation compared with common loop thermosyphons are reported. In the startup process, a unique phenomenon called “sudden temperature change” is found. This phenomenon occurs in a temporary state in the startup, when the temperature differences between the evaporators without heating power and with heating power reach certain range (-2.6?°C to 0.8?°C in this experiment). In the quasi-steady state, an oscillation map which shows the range when oscillation occurs is obtained. Compared with only one evaporator with heating power, simultaneous heating on multiple evaporators reduces the oscillation frequency, enhances the oscillation amplitude and sometimes makes it irregular, due to the interaction between the evaporators. Also, for every two adjacent evaporators, the phases of oscillation are almost opposite.

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Format PDF

Pages : 363-370

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 : Experimental investigation on a loop thermosyphon with three evaporators: Unique startup and oscillation phenomena.
  • Identifiant de la fiche : 30025519
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 99
  • Date d'édition : 03/2019
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2018.12.016

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