Investigation of an improved solar-powered open absorption system for cooling, dehumidification and air conditioning / Khaled Gommed in International journal of refrigeration, Vol. 35 N° 3 (Mai 2012)  

Public ISBD [article]  inInternational journal of refrigeration > Vol. 35 N° 3 (Mai 2012) . - pp. 676–684 Titre : Investigation of an improved solar-powered open absorption system for cooling, dehumidification and air conditioning Titre original : Etude sur un système ouvert amélioré à absorption fonctionnant à l'énergie solaire utilisé pour le refroidissement, la déshumidification et le conditionnement d'air Type de document : texte imprimé Auteurs : Khaled Gommed, Auteur ; Gershon Grossman, Auteur Année de publication : 2012 Article en page(s) : pp. 676–684 Note générale : Génie mécanique Langues : Anglais (eng) Mots-clés : Liquid desiccant Air conditioning Dehumidification Open system Absorption Résumé : This study is concerned with an open absorption (liquid desiccant) system, capable of producing both cooling and dehumidification for air conditioning, utilizing low-grade heat. The system includes a novel solution heat and mass exchanger (HME) designed to serve as a desiccant solution reservoir for both the absorber and desorber, enabling mass transfer between them with minimum heat transfer losses and eliminating the need for an external recuperative heat exchanger. The use of this new HME together with an improved solution flow arrangement in the new system facilitates the use of adiabatic absorption/desorption with minimum circulation heat losses and wetting problems. The characteristic performance of the system was studied under varying operating conditions. The use of the new HME has fulfilled the objective of reducing the time constant of the system, helped correct idling and level control problems and ensures maximum solution concentration on the absorber side during desorber operation. ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700711002313 [article] Investigation of an improved solar-powered open absorption system for cooling, dehumidification and air conditioning = Etude sur un système ouvert amélioré à absorption fonctionnant à l'énergie solaire utilisé pour le refroidissement, la déshumidification et le conditionnement d'air [texte imprimé] / Khaled Gommed, Auteur ; Gershon Grossman, Auteur . - 2012 . - pp. 676–684. Génie mécanique Langues : Anglais (eng) in International journal of refrigeration > Vol. 35 N° 3 (Mai 2012) . - pp. 676–684 Mots-clés : Liquid desiccant Air conditioning Dehumidification Open system Absorption Résumé : This study is concerned with an open absorption (liquid desiccant) system, capable of producing both cooling and dehumidification for air conditioning, utilizing low-grade heat. The system includes a novel solution heat and mass exchanger (HME) designed to serve as a desiccant solution reservoir for both the absorber and desorber, enabling mass transfer between them with minimum heat transfer losses and eliminating the need for an external recuperative heat exchanger. The use of this new HME together with an improved solution flow arrangement in the new system facilitates the use of adiabatic absorption/desorption with minimum circulation heat losses and wetting problems. The characteristic performance of the system was studied under varying operating conditions. The use of the new HME has fulfilled the objective of reducing the time constant of the system, helped correct idling and level control problems and ensures maximum solution concentration on the absorber side during desorber operation. ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700711002313

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