Temperature gradient solution for tall spaces: Taking air conditioning and ventilation design for atrium of Xi’an SEG Commercial Plaza as an example

When the tall space is heated in winter, it is easy to have obvious chimney extraction, resulting in hot air floating, especially in the high atrium, the temperature gradient between the bottom two layers and the top one or two layers is large, and the gap between somatosensory comfort is obvious. The measures and means taken by the Xi’an SEG Commercial Plaza project to deal with and solve such problems are presented. According to the actual operation data of the project in the later stage, some experiences are summarized, and ideas are provided for the design of such projects.