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Numerical analysis of the effects of nozzles number on the flow and power of cooling of a vortex tube / Rahim Shamsoddini in International journal of refrigeration, Vol. 33 N° 4 (Juin 2010) 

Public ISBD [article]  in International journal of refrigeration > Vol. 33 N° 4 (Juin 2010) . - pp. 774-782 Titre : Numerical analysis of the effects of nozzles number on the flow and power of cooling of a vortex tube Titre original : Analyse numérique de l'effet du nombre de tuyères sur l'écoulement et la puissance refroidissante d'un tube vortex Type de document : texte imprimé Auteurs : Rahim Shamsoddini, Auteur ; Alireza Hossein Nezhad, Auteur Année de publication : 2010 Article en page(s) : pp. 774-782 Note générale : Génie Mécanique Langues : Anglais (eng) Mots-clés : Refrigeration  system  Vortex  tube  Modelling  Simulation  Geometry  Nozzle Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : In this paper, the effects of the nozzles number on the flow and power of cooling of a vortex tube are studied, using a three-dimensional numerical fluid dynamic model. Vortex tube has interesting functions and several industrial applications, and, as a refrigerator, it is used as a spot cooling device in industry. High-pressure compressible fluid enters the vortex tube and leaves its cold and hot outlets at lower and higher temperatures than that of the inlet flow, respectively. A few experimental and a fewer numerical studies have been conducted in recent years on the effects of nozzles number of a vortex tube. However, in this paper, the effects of nozzles number on the flow and power of cooling of a counter-flow vortex tube are investigated comprehensively. It is observed that as the number of nozzles is increased, power of cooling increases significantly while cold outlet temperature decreases moderately. DEWEY : 621.5 ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700710000101 [article] Numerical analysis of the effects of nozzles number on the flow and power of cooling of a vortex tube = Analyse numérique de l'effet du nombre de tuyères sur l'écoulement et la puissance refroidissante d'un tube vortex [texte imprimé] / Rahim Shamsoddini, Auteur ; Alireza Hossein Nezhad, Auteur . - 2010 . - pp. 774-782. Génie Mécanique Langues : Anglais (eng) in International journal of refrigeration > Vol. 33 N° 4 (Juin 2010) . - pp. 774-782 Mots-clés : Refrigeration  system  Vortex  tube  Modelling  Simulation  Geometry  Nozzle Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : In this paper, the effects of the nozzles number on the flow and power of cooling of a vortex tube are studied, using a three-dimensional numerical fluid dynamic model. Vortex tube has interesting functions and several industrial applications, and, as a refrigerator, it is used as a spot cooling device in industry. High-pressure compressible fluid enters the vortex tube and leaves its cold and hot outlets at lower and higher temperatures than that of the inlet flow, respectively. A few experimental and a fewer numerical studies have been conducted in recent years on the effects of nozzles number of a vortex tube. However, in this paper, the effects of nozzles number on the flow and power of cooling of a counter-flow vortex tube are investigated comprehensively. It is observed that as the number of nozzles is increased, power of cooling increases significantly while cold outlet temperature decreases moderately. DEWEY : 621.5 ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700710000101