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Evaluation of methanol/activated carbons for thermally driven chillers, part II / M. Schicktanz in International journal of refrigeration, Vol. 35 N° 3 (Mai 2012) 

Public ISBD [article]  in International journal of refrigeration > Vol. 35 N° 3 (Mai 2012) . - pp. 554–561 Titre : Evaluation of methanol/activated carbons for thermally driven chillers, part II : The energy balance model Titre original : Evaluation des couples actifs méthanol / charbon actif utilisés dans les refroidisseurs entraînés par la chaleur. Partie II: le modèle de bilan thermique Type de document : texte imprimé Auteurs : M. Schicktanz, Auteur ; P. Hügenell, Auteur ; S.K. Henninger, Auteur Année de publication : 2012 Article en page(s) : pp. 554–561 Note générale : Génie mécanique Langues : Anglais (eng) Mots-clés : Adsorption  Methanol  Activated  carbon  COP  Chilling  Energy  balance Résumé : This paper describes a simple energy balance model based on static parameters to calculate the COP of an adsorption chiller. The model leads to an analytical equation using basic information about the working pair, the chiller design and the operation temperatures. A set of dimensionless key figures is derived for better understanding of the influence of physical parameters on the COP. These key figures are investigated in this paper. In contrast to absorption chillers, desorption is not an isobaric process in adsorption chillers. The influence of the path is discussed in the limits of isobaric and isothermal desorption. Furthermore, the model is applied to a set of new material data, focussingfocussing on methanol/activated carbon as the working pair. This working pair makes refrigeration below 0°C feasible. This paper is the second of two articles about the measurement and evaluation of methanol/activated carbon for cooling purposes in adsorption chillers. The first part contains the experimental description and the thermophysical properties of methanol/activated carbon. ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700711000776 [article] Evaluation of methanol/activated carbons for thermally driven chillers, part II = Evaluation des couples actifs méthanol / charbon actif utilisés dans les refroidisseurs entraînés par la chaleur. Partie II: le modèle de bilan thermique : The energy balance model [texte imprimé] / M. Schicktanz, Auteur ; P. Hügenell, Auteur ; S.K. Henninger, Auteur . - 2012 . - pp. 554–561. Génie mécanique Langues : Anglais (eng) in International journal of refrigeration > Vol. 35 N° 3 (Mai 2012) . - pp. 554–561 Mots-clés : Adsorption  Methanol  Activated  carbon  COP  Chilling  Energy  balance Résumé : This paper describes a simple energy balance model based on static parameters to calculate the COP of an adsorption chiller. The model leads to an analytical equation using basic information about the working pair, the chiller design and the operation temperatures. A set of dimensionless key figures is derived for better understanding of the influence of physical parameters on the COP. These key figures are investigated in this paper. In contrast to absorption chillers, desorption is not an isobaric process in adsorption chillers. The influence of the path is discussed in the limits of isobaric and isothermal desorption. Furthermore, the model is applied to a set of new material data, focussingfocussing on methanol/activated carbon as the working pair. This working pair makes refrigeration below 0°C feasible. This paper is the second of two articles about the measurement and evaluation of methanol/activated carbon for cooling purposes in adsorption chillers. The first part contains the experimental description and the thermophysical properties of methanol/activated carbon. ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700711000776