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Simulation numérique de tubes capillaires. Application au froid domestique utilisant l'isobutane.

Numerical simulation of capillary tubes. Application to domestic refrigeration with isobutane.

Numéro : pap. n. R13, 2377

Auteurs : ABLANQUE N., RIGOLA J., PÉREZ-SEGARRA C. D., et al.

Résumé

This work presents the implementation and validation of a numerical model that simulates the thermal and fluiddynamic phenomena inside capillary tubes. The algorithm is based on a two-phase flow model where the governing equations (continuity, momentum, energy and entropy) are integrated over the discretized fluid domain and solved by means of a step-by-step scheme. The numerical procedure considers four different transitional regions (subcooled liquid region, metastable liquid region, metastable two-phase flow region and equilibrium two-phase flow region), allows the prediction of both critical and non-critical flow conditions, and evaluates the heat exchanged between the capillary tube and the compressor suction line. The model predictions have been compared against experimental data sets including adiabatic and non-adiabatic conditions. In addition, a parametric study on capillary tubes used in household refrigerators and working with isobutane has been carried out (different geometric conditions were considered).

Documents disponibles

Format PDF

Pages : 8 p.

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 : Numerical simulation of capillary tubes. Application to domestic refrigeration with isobutane.
  • Identifiant de la fiche : 30000749
  • Langues : Anglais
  • Source : 2010 Purdue Conferences. 13th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 12/07/2010

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