Research on Cold Wind Intrusion of High-rise Buildings in Severe Cold and Cold Regions
There is a strong chimney effect in high-rise buildings in severe cold and cold regions,a large amount of cold air invades when the outer door is opened,which results in low temperature,high wind speed and high energy consumption in the lobby.Based on analysis,calculation,and actual measurement,it was proposed that emphasis should be placed on improving the air tightness of the top of the building and strengthening the internal partition to reduce the thermal pressure effect at the outer door of the first floor of the building.The main entrances and exits of the building should be equipped with rotary doors or the structure of the door bucket should be optimized to avoid direct inflow of cold air into the interior.Specific technical countermeasures were further proposed for the problem of cold wind intrusion in buildings in severe cold and cold regions.
severe cold areascold wind intrusionthermal pressuretesttechnical countermeasures
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