Regulation performance of cooling ceiling air conditioning system

Simulates the combined air conditioning system of cooling ceiling and dedicated outdoor air system in an office located in Shanghai by TRNSYS. Discusses the influence of both the variable and the constant water supply temperature with on-off control on the stability of indoor temperature, condensation frequency and human thermal comfort. Studies the operational characteristics and energy consumption of the entire system combined with outdoor air dehumidification system. The results show that the energy consumption of two control methods is basically the same and better thermal comfort can be obtained with both methods. The method of variable water supply temperature can avoid the risk of condensation, and its cooling capacity is influenced by the indoor humidity.