Conditionnement d'air solaire résidentiel : analyse énergétique et exergétique d'un système de refroidissement ammoniac-eau à absorption .
Residential solar air conditioning: energy and exergy analyses of an ammonia–water absorption cooling system.
Auteurs : AMAN J., TING D. S. K., HENSHAW P.
Type d'article : Article
Résumé
Large scale heat-driven absorption cooling systems are available in the marketplace for industrial applications but the concept of a solar driven absorption chiller for air-conditioning applications is relatively new. Absorption chillers have a lower efficiency than compression refrigeration systems, when used for small scale applications and this restrains the absorption cooling system from air conditioning applications in residential buildings. The potential of a solar driven ammonia–water absorption chiller for residential air conditioning application is discussed and analyzed in this paper. A thermodynamic model has been developed based on a 10 kW air cooled ammonia–water absorption chiller driven by solar thermal energy. Both energy and exergy analyses have been conducted to evaluate the performance of this residential scale cooling system. The analyses uncovered that the absorber is where the most exergy loss occurs (63%) followed by the generator (13%) and the condenser (11%). Furthermore, the exergy loss of the condenser and absorber greatly increase with temperature, the generator less so, and the exergy loss in the evaporator is the least sensitive to increasing temperature.
Détails
- Titre original : Residential solar air conditioning: energy and exergy analyses of an ammonia–water absorption cooling system.
- Identifiant de la fiche : 30010272
- Langues : Anglais
- Source : Applied Thermal Engineering - vol. 62 - n. 2
- Date d'édition : 01/2014
- DOI : http://dx.doi.org/10.1016/j.applthermaleng.2013.10.006
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