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Heat and mass transfer studies on compact generator of R134a/DMF vapour absorption refrigeration system / P. Balamurugan 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. 506–517 Titre : Heat and mass transfer studies on compact generator of R134a/DMF vapour absorption refrigeration system Titre original : Etudes sur le transfert de chaleur et de masse dans un système frigorifique compact à absorption de vapeur au R134a/DMF Type de document : texte imprimé Auteurs : P. Balamurugan, Auteur ; A. Mani, Auteur Année de publication : 2012 Article en page(s) : pp. 506–517 Note générale : Génie mécanique Langues : Anglais (eng) Mots-clés : R134a  DMF  Generator  Absorption  system  Heat  transfer  Mass  transfer Résumé : Experimental investigation on the performance of compact generator of R134a/DMF vapour absorption refrigeration system is presented. The system uses brazed plate heat exchangers as generator, condenser, absorber, evaporator and solution heat exchanger and has a rated cooling capacity of 1 kW. The influence of driving temperature ratio, driving pressure ratio, R134a mass fraction and solution two phase Reynolds number is studied. This kind of system can be operated with low grade thermal energy such as solar energy, waste heat, etc. The generator temperature is chosen accordingly between 353 K and 368 K. Desorption ratio and Sherwood number increase as the solution Reynolds number, solution initial mass fraction, and driving temperature ratio increase whereas they decrease as the driving pressure ratio increases. The performance of the compact generator at different operating conditions is presented. Based on the present data, empirical correlations for Nusselt number and Sherwood number are proposed. ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700712000102 [article] Heat and mass transfer studies on compact generator of R134a/DMF vapour absorption refrigeration system = Etudes sur le transfert de chaleur et de masse dans un système frigorifique compact à absorption de vapeur au R134a/DMF [texte imprimé] / P. Balamurugan, Auteur ; A. Mani, Auteur . - 2012 . - pp. 506–517. Génie mécanique Langues : Anglais (eng) in International journal of refrigeration > Vol. 35 N° 3 (Mai 2012) . - pp. 506–517 Mots-clés : R134a  DMF  Generator  Absorption  system  Heat  transfer  Mass  transfer Résumé : Experimental investigation on the performance of compact generator of R134a/DMF vapour absorption refrigeration system is presented. The system uses brazed plate heat exchangers as generator, condenser, absorber, evaporator and solution heat exchanger and has a rated cooling capacity of 1 kW. The influence of driving temperature ratio, driving pressure ratio, R134a mass fraction and solution two phase Reynolds number is studied. This kind of system can be operated with low grade thermal energy such as solar energy, waste heat, etc. The generator temperature is chosen accordingly between 353 K and 368 K. Desorption ratio and Sherwood number increase as the solution Reynolds number, solution initial mass fraction, and driving temperature ratio increase whereas they decrease as the driving pressure ratio increases. The performance of the compact generator at different operating conditions is presented. Based on the present data, empirical correlations for Nusselt number and Sherwood number are proposed. ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700712000102