| Titre : | Optimisation of a desiccant cooling system design with indirect evaporative cooler (2011) |
| Titre original : | Optimisation de la conception d'un système de refroidissement à déshydratant à refroidissement évaporatif indirect |
| Auteurs : | M. Goldsworthy, Auteur ; S. White, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | International journal of refrigeration (Vol. 34 N° 1, Janvier 2011) |
| Article en page(s) : | pp. 148-158 |
| Note générale : | Génie Mécanique |
| Langues : | Anglais |
| Index. décimale : | 621.5 (Energie pneumatique. Machinerie et outils. Réfrigération) |
| Tags : | Air-conditioning Desiccant system wheel Optimisation Performance |
| Résumé : | Solar desiccant-based air-conditioning has the potential to significantly reduce cost and/or greenhouse gas emissions associated with cooling of buildings. Parasitic energy consumption for the operation of supply fans has been identified as a major hindrance to achieving these savings. The cooling performance is governed by the trade-off between supplying larger flow-rates of cool air or lower flow-rates of cold air. The performance of a combined solid desiccant-indirect evaporative cooler system is analysed by solving the heat and mass transfer equations for both components simultaneously. Focus is placed on varying the desiccant wheel supply/regeneration and indirect cooler secondary/primary air-flow ratios. Results show that for an ambient reference condition, and 70 °C regeneration temperature, a supply/regeneration flow ratio of 0.67 and an indirect cooler secondary/primary flow ratio of 0.3 gives the best performance with COPe > 20. The proposed cooling system thus has potential to achieve substantial energy and greenhouse gas emission savings. |
| DEWEY : | 621.5 |
| ISSN : | 0140-7007 |
| En ligne : | http://www.sciencedirect.com/science/article/pii/S0140700710001519 |
