HYBRID SOLAR DESICCANT COOLING SYSTEM

Now days, air conditioning systems are a must for almost every commercial and residential building to achieve comfortable indoor conditions. The increasing energy demand, and increasing oil prices and pollution levels raise the need for alternative air conditioning systems which can efficiently utilize renewable energy resources. The desiccant systems are reasonably-priced, produce no CFCs, and capable of both drying and filtering the air. They provide an opportunity to control humidity and temperature independently, and have the capability of using low quality thermal energy. Using excess summer heat from solar collectors to drive desiccant cooling systems is often proposed. A two-wheel desiccant system using solar heat for desiccant regeneration is typically discussed. The two-wheel system uses a desiccant wheel that is “matched” with a heat exchanger wheel. The heat exchanger recycles heat for the desiccant regeneration and improves system efficiency