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THERMAL LOSSES EFFECT ON THE PERFORMANCE OF AN INTERMITTENT SOLAR REFRIGERATION CYCLE FOR GENERATION PHASE

DOI: 10.1615/ICHMT.2009.CONV.1330
page 11

Yasmina Boukhchana
Research Unit: Applied Thermodynamics (99/UR/11-21) Engineers National School, 6029 Gabes Tunisia

Ali Fellah
Research Unit: Applied Thermodynamics (99/UR/11-21) Engineers National School, 6029 Gabes Tunisia

Ammar Ben Brahim
Ecole Nationale d’Ingénieurs de Gabès, Rue Omar Ibn El Khattab, 6029 Gabès, Tunisia, Département de Génie Chimique Procédés, Unité de Recherche : Thermodynamique Appliquée

Abstract

In this contribution, a study of the thermal losses effect undergone by the different parts of an intermittent absorption solar refrigeration cycle using the Ammonia/Water mixture is presented. After having shown the interest of the intermittent cycles through the discussion of the problem of the adaptation of these cycles to solar energy, mass and thermal assessments for each compartment of the installation were established for the two cases without and with thermal losses. The resulting differential equations system is solved numerically. The theoretical results obtained concern the temperature variations, the vapor flow as well as the compositions of the rich and the poor solutions.

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