Paper 3
Effect of Free Cooling on the Operation of a Desiccant Evaporative Cooling
System
Chadi
Maalouf1, Etienne Wurtz2 and Laurent Mora1
1LEPTAB,
Universitiy of La Rochelle, Av M. Crepeau, 17042. La Rochelle, France
2
INES: Institute National d’Energie Solaire - Savoie Technolac, 50 avenue
du Lac Léman
73375
Le Bourget du Lac Cedex, France
Abstract
Desiccant cooling is a potentially environmentally
friendly technology which can be used to cool buildings without the use of
traditional refrigerants. We have studied the operation of a desiccant
cooling system in France. It is used to meet the cooling demand of a
training room containing 40 persons. In order to decrease the system
primary energy requirement, free cooling techniques are used. Models are
implemented in SimSPARK a simulation environment able to solve complex
problems. Simulations are run for several French cities. Results indicate
that, as outdoor humidity ratio increases, regeneration energy increases.
Using free cooling with ventilation and direct humidification can decrease
regeneration energy requirement between 15 and 25%.
Key words: free
cooling, desiccant cooling, primary energy, SPARK.
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