Development of an Experimental Indirect Evaporative Air-cooling System
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Abstract
In this paper an experimental air conditioning system is presented which has significantly lower expected electrical energy consumption than that of the conventional compressor-operated ones in a basis of same cooling power. The cooling of the air is provided by cool hygroscopic salt solution while it is capable to dry the treated air. The salt solution is re-cooled in a heat exchanger where its heat is transferred to cooled soft water. The cooling of the soft water is provided by its evaporation into the ambient air in an evaporative chiller. Thus, the extracted heat energy of the treated air is transformed to the latent heat of the water vapour which is exhausted to the external environment. In this paper the structure of the system and the function of each part is presented. The operation and the technical implementation of the evaporative chiller is presented in detail.
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