Study and application of fresh air cooling technology using earth heat retainers

Presents the application of the technology in Expo Axis, Shanghai. The research result shows that the earth heat retainer can be used to cooling fresh air, and that the larger the air flow rate, the greater the cooling capacity is. However, the energy efficiency analysis indicates that the system with part fresh air cooled by earth heat retainer has higher efficiency and it is necessary to do optimizing design for each actual projects.