Documents disponibles écrits par cet auteur

Performance improvement of air-cooled refrigeration system by using evaporatively cooled air condenser / E. Hajidavalloo in International journal of refrigeration, Vol. 33 N° 5 (Août 2010) 

Public ISBD [article]  in International journal of refrigeration > Vol. 33 N° 5 (Août 2010) . - pp. 982-988 Titre : Performance improvement of air-cooled refrigeration system by using evaporatively cooled air condenser Titre original : Amélioration de la performance d'un système frigorifique refroidi par air à l'aide d'un condenseur d'air refroidi par évaporation Type de document : texte imprimé Auteurs : E. Hajidavalloo, Auteur ; H. Eghtedari, Auteur Année de publication : 2010 Article en page(s) : pp. 982-988 Note générale : Génie Mécanique Langues : Anglais (eng) Mots-clés : Air  conditioning  Air  conditioner  Solid  sorption  Improvement  Coefficient  of  performance  Experiment  Water  Evaporative  cooler  Energy  saving Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : Increasing the coefficient of performance of air conditioner with air-cooled condenser is a challenging problem especially in area with very hot weather conditions. Application of evaporatively cooled air condenser instead of air-cooled condenser is proposed in this paper as an efficient way to solve the problem. An evaporative cooler was built and coupled to the existing air-cooled condenser of a split-air-conditioner in order to measure its effect on the cycle performance under various ambient air temperatures up to 49 °C. Experimental results show that application of evaporatively cooled air condenser has significant effect on the performance improvement of the cycle and the rate of improvement is increased as ambient air temperature increases. It is also found that by using evaporatively cooled air condenser in hot weather conditions, the power consumption can be reduced up to 20% and the coefficient of performance can be improved around 50%. More improvements can be expected if a more efficient evaporative cooler is used. DEWEY : 621.5 ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S014070071000037X [article] Performance improvement of air-cooled refrigeration system by using evaporatively cooled air condenser = Amélioration de la performance d'un système frigorifique refroidi par air à l'aide d'un condenseur d'air refroidi par évaporation [texte imprimé] / E. Hajidavalloo, Auteur ; H. Eghtedari, Auteur . - 2010 . - pp. 982-988. Génie Mécanique Langues : Anglais (eng) in International journal of refrigeration > Vol. 33 N° 5 (Août 2010) . - pp. 982-988 Mots-clés : Air  conditioning  Air  conditioner  Solid  sorption  Improvement  Coefficient  of  performance  Experiment  Water  Evaporative  cooler  Energy  saving Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : Increasing the coefficient of performance of air conditioner with air-cooled condenser is a challenging problem especially in area with very hot weather conditions. Application of evaporatively cooled air condenser instead of air-cooled condenser is proposed in this paper as an efficient way to solve the problem. An evaporative cooler was built and coupled to the existing air-cooled condenser of a split-air-conditioner in order to measure its effect on the cycle performance under various ambient air temperatures up to 49 °C. Experimental results show that application of evaporatively cooled air condenser has significant effect on the performance improvement of the cycle and the rate of improvement is increased as ambient air temperature increases. It is also found that by using evaporatively cooled air condenser in hot weather conditions, the power consumption can be reduced up to 20% and the coefficient of performance can be improved around 50%. More improvements can be expected if a more efficient evaporative cooler is used. DEWEY : 621.5 ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S014070071000037X