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Effet de l’inertie de l’écoulement du fluide et du refoulement sur la force efficace et les zones d’écoulement des soupapes à lamelles.

Effect of fluid flow inertia and backflow on the effective force and flow areas of reed-type valves.

Numéro : pap. 1390

Auteurs : LOHN S. K., SILVA E., BEPPLER D. L., et al.

Résumé

Reed-type valves are used to control the suction and discharge processes in small reciprocating compressors. Simulation models adopted in the preliminary design of such compressors usually employ the concepts of effective force and flow areas to characterize valve performance. These parameters are evaluated considering steady flow through the valve port, and hence neglecting flow inertia in the opening and closing stages of the valve motion. Moreover, both effective areas are also considered not to be affected by the presence of backflow. This paper presents a numerical study about the effect of flow inertia and backflow on the effective flow and force areas of valves of a small reciprocating compressor, with a finite element model developed to predict valve dynamics. The results show that the effective force area must be evaluated separately for conditions of normal flow and backflow and that flow inertia can significantly affect backflow in the valve.

Documents disponibles

Format PDF

Pages : 8

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 : Effect of fluid flow inertia and backflow on the effective force and flow areas of reed-type valves.
  • Identifiant de la fiche : 30024332
  • Langues : Anglais
  • Source : 2018 Purdue Conferences. 24th International Compressor Engineering Conference at Purdue.
  • Date d'édition : 09/07/2018

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