Passive Design Strategy for Heating and Ventilation in Winter by the Advancement of a Double-Skin Facade System

Double-skin facade (DSF) systems offer various opportunities for ventilation and heating. This study developed a multi-story, passive DSF system for an office building with single-sided ventilation to exploit passive ventialtion and heating in winter. The key design strategies used for the passive DSF include comparmentalization of cavities, increasedcavity height for the greater preheating effect, while offering individual control for each room. EnergyPlus was used for building energy simulation coupled with the airflow-network model. Our results showed that the increased cavity heights led to the greater airflow and pre-heating effect. The test models helped mitigate the extreme indoor environment in winter, and the consequent indoor air temperature depended on the dynamics between the ventilation and the preheating effect.