Abstract
SYNOPSIS In this paper the authors have presented a review, analysis and computer modelling of desiccant based hybrid air-conditioning (A/C) cycles for typical hot and humid conditions. Three hybrid cycles based on solid desiccant dehumidifier (viz. ventilation/condenser, recirculation/condenser and ventilation/heat exchanger cycles) have been evaluated and compared in performance with a conventional vapour compression A/C system. Computer modelling and analysis is based on dehumidifier performance data and the air psychrometric properties data correlations. Typical performance results in parametric variations for less and more humid conditions prevailing in Indian cities are presented. It is found that there is considerable scope for energy savings and improvement in the COP with hybrid A/C over the conventional vapour compresion cycle and desiccant cooling cycle alone for high latent heat load conditions.
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