An optimised window control strategy for naturally ventilated residential buildings in warm climates

作者：Tan, Zijing; Deng, Xiang^*

来源：Sustainable Cities and Society, 2020, 57: 102118.

DOI：10.1016/j.scs.2020.102118

• Natural ventilation
• Control strategy
• Window opening percentage
• Thermal comfort
• Control optimisation

The adopted window control strategy within an indoor environment affects ventilation performance and occupant comfort. A natural ventilation strategy with optimised window control is proposed and evaluated on a typical Australian residential building. The three main steps of window control are: 1) prediction of outdoor air temperature through rolling forecast; 2) determination of ventilation mode through the decision tree method and; 3) optimisation of window opening percentage through heuristic control. Three control strategies are investigated and compared throughout the hot season. The results suggest that introducing prediction of outdoor temperature into the natural ventilation control process minimises the negative impact of control hysteresis. By using flexible degrees of window opening, the proposed strategy shows improved performance for maintaining an indoor operative temperature compared to the original open-closed control. The mean absolute deviations of indoor operative temperature from the neutral operative temperature are reduced by more than 30 %. In addition, the presented feedback and predictive control logic results in greater stability of indoor thermal operative temperature by avoiding over-ventilation.

• 单位
  长安大学