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Single-effect absorption refrigeration cycle boosted with an ejector-adiabatic absorber using a single solution pump / C. Vereda in International journal of refrigeration, Vol. 38 (Février 2014) 

Public ISBD [article]  in International journal of refrigeration > Vol. 38 (Février 2014) . - pp. 22–29 Titre : Single-effect absorption refrigeration cycle boosted with an ejector-adiabatic absorber using a single solution pump Titre original : Cycle frigorifique à simple effet à absorption augmenté par un absorbeur à éjecteur adiabatique utilisant une pompe à solution unique Type de document : texte imprimé Auteurs : C. Vereda, Auteur ; R. Ventas, Auteur ; A. Lecuona, Auteur Année de publication : 2014 Article en page(s) : pp. 22–29 Note générale : Refrigeration Langues : Anglais (eng) Mots-clés : Absorption  hybrid  cycles;  Ammonia-lithium  nitrate;  Cooling;  Two-phase  ejector;  Adiabatic  absorber;  Solar  cooling Résumé : This paper presents a numerical model of a single-effect absorption refrigeration cycle incorporating a triple purpose liquid–vapor ejector acting as pressure booster for refrigerant vapor, adiabatic absorber and controlled solution expansion valve. The promising ammonia-lithium nitrate solution is selected as working pair, being able to produce cold at subzero temperatures, thus valid either for air conditioning or industrial refrigeration. With the use of the liquid–gas ejector, the absorption pressure becomes higher than the evaporation pressure, besides recovering part of the solution pump energy. Results of the simulation show that this innovation behaves like a compressor boosted hybrid cycle without carrying its complexity. It allows decreasing the activation temperature (about 15 °C for a recirculation ratio of 3) and increasing the cooling capacity (reaching a gain of about 100% for a generation temperature of 80 °C). En ligne : http://www.sciencedirect.com/science/article/pii/S0140700713002880 [article] Single-effect absorption refrigeration cycle boosted with an ejector-adiabatic absorber using a single solution pump = Cycle frigorifique à simple effet à absorption augmenté par un absorbeur à éjecteur adiabatique utilisant une pompe à solution unique [texte imprimé] / C. Vereda, Auteur ; R. Ventas, Auteur ; A. Lecuona, Auteur . - 2014 . - pp. 22–29. Refrigeration Langues : Anglais (eng) in International journal of refrigeration > Vol. 38 (Février 2014) . - pp. 22–29 Mots-clés : Absorption  hybrid  cycles;  Ammonia-lithium  nitrate;  Cooling;  Two-phase  ejector;  Adiabatic  absorber;  Solar  cooling Résumé : This paper presents a numerical model of a single-effect absorption refrigeration cycle incorporating a triple purpose liquid–vapor ejector acting as pressure booster for refrigerant vapor, adiabatic absorber and controlled solution expansion valve. The promising ammonia-lithium nitrate solution is selected as working pair, being able to produce cold at subzero temperatures, thus valid either for air conditioning or industrial refrigeration. With the use of the liquid–gas ejector, the absorption pressure becomes higher than the evaporation pressure, besides recovering part of the solution pump energy. Results of the simulation show that this innovation behaves like a compressor boosted hybrid cycle without carrying its complexity. It allows decreasing the activation temperature (about 15 °C for a recirculation ratio of 3) and increasing the cooling capacity (reaching a gain of about 100% for a generation temperature of 80 °C). En ligne : http://www.sciencedirect.com/science/article/pii/S0140700713002880