Performance of a novel HVAC system in hot and humid weather conditions: chilled-ceiling combined with desiccant cooling

摘要

A non-traditional HVAC (Heating, Ventilating, and Air-conditioning) system: chilled-ceiling combined with desiccant cooling, is proposed for hot and humid regions like Hong Kong. The performance of the combined system is investigated by a building energy simulation code named accuracy. The energy savings effect of the system in comparison with a conventional all-air system is investigated. The indoor humidity variations with the system are predicted by a room moisture balance method. It is found that to address the problem of water condensation on ceiling panels, a one-hour in advance air dehumidification is required for this novel system.