Comparison between the conventional and recirculation modes in desiccant cooling cycles and deriving critical efficiencies of components |
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Authors: | P Bourdoukan E Wurtz P Joubert |
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Affiliation: | 1. LOCIE, Laboratoire Optimisation de la Conception et Ingénierie de l''Environnement, Université de Savoie, Campus scientifique, 73376 Le Bourget du Lac, France;2. LEPTIAB, Laboratoire d''Etude des Phénomènes de Transfert de l''Instantanéité Agro-industrie et Bâtiment, Université de La Rochelle, Pôle Sciences et Technologies, Avenue Marillac, 17000 La Rochelle, France |
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Abstract: | Desiccant evaporative systems are heat driven at moderate temperature and are usually coupled with solar collectors or with waste heat. The performance of desiccant systems is very sensitive to outside conditions and to the efficiency of the system components. In this paper the impact of these factors on the performance of two configurations of desiccant systems is investigated through simulation. First, a model of a desiccant air handling unit is briefly presented and validated experimentally. Then different efficiency combinations are studied and the critical efficiencies are derived. Finally, a comparison of the conventional and the recirculation configurations is made, based on outside conditions. |
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Keywords: | Cooling Efficiency Desiccant wheel Regenerator Simulation Validation SPARK |
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