Evaluation of methanol adsorption on activated carbons for thermally driven chillers part I / S.K. Henninger 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. 543–553 Titre : Evaluation of methanol adsorption on activated carbons for thermally driven chillers part I : Thermophysical characterisation Titre original : Evaluation de l'adsorption de méthanol sur du charbon actif dans les refroidisseurs à entraînement thermique. Partie I: caractérisation thermophysique Type de document : texte imprimé Auteurs : S.K. Henninger, Auteur ; M. Schicktanz, Auteur ; P.P.C. Hügenell, Auteur Année de publication : 2012 Article en page(s) : pp. 543–553 Note générale : Génie mécanique Langues : Anglais (eng) Mots-clés : Activated carbon Methanol Heat pump Adsorption system Refrigerating unit Thermodynamic cycle Résumé : In this first part a comprehensive thermophysical characterisation of six activated carbons – based on coconut, peat and stone coal with focus on thermally driven chillers is reported. Pore and surface analysis are performed using N2 and CO2 adsorption. Furthermore the density and heat capacity of the samples is determined. Methanol adsorption measurements for evaporation between −5 °C and 35 °C and driving temperatures up to 130 °C are realized using a thermobalance and evaluated using the Dubinin–Astakhov (DA) approach. Based on the given DA equations, the possible loading lifts for typical applications like 95°-35°-7 °C are calculated. The samples show very attractive maximum loading lifts up to 0.385 g g−1. Furthermore the mass and volume specific cooling enthalpy of 244 kJ kg−1 and 126 kJ dm−3 under realistic conditions demonstrates the good performance of this working pair. ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700711002489 [article] Evaluation of methanol adsorption on activated carbons for thermally driven chillers part I = Evaluation de l'adsorption de méthanol sur du charbon actif dans les refroidisseurs à entraînement thermique. Partie I: caractérisation thermophysique : Thermophysical characterisation [texte imprimé] / S.K. Henninger, Auteur ; M. Schicktanz, Auteur ; P.P.C. Hügenell, Auteur . - 2012 . - pp. 543–553. Génie mécanique Langues : Anglais (eng) in International journal of refrigeration > Vol. 35 N° 3 (Mai 2012) . - pp. 543–553 Mots-clés : Activated carbon Methanol Heat pump Adsorption system Refrigerating unit Thermodynamic cycle Résumé : In this first part a comprehensive thermophysical characterisation of six activated carbons – based on coconut, peat and stone coal with focus on thermally driven chillers is reported. Pore and surface analysis are performed using N2 and CO2 adsorption. Furthermore the density and heat capacity of the samples is determined. Methanol adsorption measurements for evaporation between −5 °C and 35 °C and driving temperatures up to 130 °C are realized using a thermobalance and evaluated using the Dubinin–Astakhov (DA) approach. Based on the given DA equations, the possible loading lifts for typical applications like 95°-35°-7 °C are calculated. The samples show very attractive maximum loading lifts up to 0.385 g g−1. Furthermore the mass and volume specific cooling enthalpy of 244 kJ kg−1 and 126 kJ dm−3 under realistic conditions demonstrates the good performance of this working pair. ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700711002489

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