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Etude expérimentale sur la chute de pression de R-22 et de R-410A pendant le processus de condensation à l'intérieur de microtubes.

[In Chinese. / En chinois.]

Auteurs : ZHANG H., LI J., WANG B.

Type d'article : Article

Résumé

R-410A is known as one of the substitutes for R-22 and it is important to study the pressure drop of R-410A during condensing processes. A test rig was established to measure pressure drop in microscale and characteristics of pressure drop of R-22 and R-410A in a horizontal stainless round tube with an inner diameter of 0.941 mm during condensing processes were investigated experimentally at the saturation temperature of 40°C. The mass flux varied within the range of 200-1000 kg /m2.s and the vapour quality 0.2-0.8. The experimental results indicate that the pressure drop increases with mass flux and vapour quality and more obviously in the high vapour quality region. The pressure drop of R-410A is equivalent to that of R-22 at low vapour quality and mass flux but obviously lower than that of R-22 at higher vapour quality and mass flux.

Documents disponibles

Format PDF

Pages : 1-5

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

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

Détails

  • Titre original : [In Chinese. / En chinois.]
  • Identifiant de la fiche : 2007-1946
  • Langues : Chinois
  • Source : Journal of Refrigeration - vol. 28 - n. 3
  • Date d'édition : 06/2007

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