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Analyse de la relation entre les phénomènes de surchauffe et la température de démarrage d'un système de refroidissement diphasique.

[In Chinese. / En chinois.]

Auteurs : LIU J., LI T., PEI N., et al.

Type d'article : Article

Résumé

Experiments on the performance of a new mechanically pumped cooling loop using CO2 as a working fluid were conducted. It was observed during the experiment that there was a superheat phenomenon at the outlet of the evaporator when the heat load was added. Moreover, the superheat degree at the outlet of the evaporator and the pressure pulse caused by the change from superheat state to two-phase state increase with the decrease of the evaporating temperature at the start-up stage. The analysis based on nucleation thermodynamic theory indicated that the critical radius of bubbles would become smaller with the increasing of evaporative temperature. So, a relative lower heat power can change the work fluid from superheat into a stable two-phase state.

Documents disponibles

Format PDF

Pages : 23-28

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    20 €

  • Prix membre*

    15 €

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Détails

  • Titre original : [In Chinese. / En chinois.]
  • Identifiant de la fiche : 2008-1289
  • Langues : Chinois
  • Source : Journal of Refrigeration - vol. 28 - n. 118
  • Date d'édition : 12/2007

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