Dynamic thermal storage analysis of west external wall on night ventilation in Chongqing

Considering the hot and humid climate condition in Chongqing, presents a novel night ventilation system using wall attachment jet to cool down the inner surface of walls, and performs an experiment and numerical analysis. Compares the actual results of non-ventilation condition with those of wall attachment jet night ventilation condition at the same outdoor air design condition. Analyses the influence of night ventilation on the surface temperature of the envelope. Tests the data of two conditions at similar weather conditions, same ventilation rate and different ventilation starting time, develops an unsteady 3D model by Fluent software, and calculates the heat density and thermal storage capacity of the west external wall. The calculation results show that the night ventilation method can effectively reduce the thermal storage of the wall.