Partager

Méthode de variation de résistance axiale pour une meilleure quantification des performances d’un tube de condenseur à surface améliorée.

An axial resistance-varying method for improved quantification of enhanced surface condenser tube performance.

Numéro : pap. 2625

Auteurs : NELSON C., KYUNG I.

Résumé

In shell-and-tube condensers, local heat flux and thermal resistance change along a tube’s length due to the rise in water temperature as heat is absorbed. In this study, the outside heat transfer coefficient for pure condensation on an enhanced surface condenser tube was developed as a function of local heat flux. The developed heat transfer coefficient correlation was then substituted into the energy equation and solved to obtain the local mean water temperature as a function of axial position. The developed axial resistance-varying method was compared to the conventional log mean temperature difference method and showed applicability for long tube lengths where it better predicted water temperature approach and range.

Documents disponibles

Format PDF

Pages : 12

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 : An axial resistance-varying method for improved quantification of enhanced surface condenser tube performance.
  • Identifiant de la fiche : 30024694
  • Langues : Anglais
  • Source : 2018 Purdue Conferences. 17th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 09/07/2018

Liens


Voir d'autres communications du même compte rendu (252)
Voir le compte rendu de la conférence

Indexation