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Energy losses in centrifugal fans / A. Khaldi

Public ISBD Titre : Energy losses in centrifugal fans Type de document : texte imprimé Auteurs : A. Khaldi, Auteur ; W. G. Cartwright, Directeur de thèse Editeur : Manchester : [s.n.] Année de publication : 1983 Importance : 58 f. Présentation : ill. Format : 30 cm. Note générale : Master of Science : Mechanical engineering : University of Manchester : 1983 Bibliogr. [2] f. Annexe [69] f Langues : Anglais (eng) Mots-clés : Energy  losses centrifugal  fanss Impeller  stage Index. décimale : Ms00883 Résumé : The overall performance of a 125 mm diameter centrifugal fan was measured and the efficiencies were detrmined for variable flow rates. The comparatively small size of the fan opened up the possibility that because of low Reynolds number, the internal fluid frictional effects might differ from those predicted by conventional methods. A set of hydraulic low correlation based on the principle of the kinetic energy defect was derived for the fan geometry. These expressions together with expressions for the external losses were implemented in a program in order to predict the overall performance. The effect of the various loss correlations on the overall performance was studied and corrections were made in an attempt to reach agreement between the experimental and calculated performances. Energy losses in centrifugal fans [texte imprimé] / A. Khaldi, Auteur ; W. G. Cartwright, Directeur de thèse . - Manchester : [s.n.], 1983 . - 58 f. : ill. ; 30 cm. Master of Science : Mechanical engineering : University of Manchester : 1983 Bibliogr. [2] f. Annexe [69] f Langues : Anglais (eng) Mots-clés : Energy  losses centrifugal  fanss Impeller  stage Index. décimale : Ms00883 Résumé : The overall performance of a 125 mm diameter centrifugal fan was measured and the efficiencies were detrmined for variable flow rates. The comparatively small size of the fan opened up the possibility that because of low Reynolds number, the internal fluid frictional effects might differ from those predicted by conventional methods. A set of hydraulic low correlation based on the principle of the kinetic energy defect was derived for the fan geometry. These expressions together with expressions for the external losses were implemented in a program in order to predict the overall performance. The effect of the various loss correlations on the overall performance was studied and corrections were made in an attempt to reach agreement between the experimental and calculated performances.

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité	Spécialité	Etat_Exemplaire
Ms00883	Ms00883	Papier	Bibliothèque centrale	Mémoire de Master	Disponible