Air conditioning design of China Da Tang Power Group Headquarter Office Building

Presents the basic situation of the project. The ice thermal storage system, chilled water system with large temperature difference between supply and return chilled water and VAV system with low temperature air supply combined with dedicated fresh air system are used to reduce operating costs and improve occupants’ thermal comfort. The operating cost can be reduced by adopting the ice thermal storage system to utilize the power price difference between high and low power demand periods. The adoption of the VAV system with low temperature air supply can reduce the air quantity, duct size and air transportation power consumption. At the same time, the low temperature air supply system provides more comfortable indoor environment due to lower relative humidity.