MULTI-OBJECTIVE OPTIMIZATION OF EXTERNAL WINDOW DESIGN PARAMETERS OF GREEN BUILDINGS IN HOT SUMMER AND WARM WINTER AREAS

Abstract

In this paper, an apartment building in Guangxi, China was selected to evaluate the impact of exterior window design parameters on air conditioning energy consumption, daylight and ventilation. In order to simultaneously optimize the design parameters of the external window to determine the balance between energy consumption, indoor daylight and ventilation, a total of 16 valid cases using an orthogonal array, L₁₆ (4⁵) orthogonal experimental design (OED) were selected. The results show that the width (B) is the most important factor affecting the comprehensive performance, followed by the material (A), the height (C) and the bottom height (D) of the external window. Through the empirical test, the optimal combination of the design parameters of the external window is A2B1C3D4 (Heat aluminum window frame and Low-E hollow glass + 1200mm×1500mm×700mm), which can meet the effects of low energy consumption, good daylight and ventilation at the same time. The evaluation results can provide a favorable reference for the external window design in Guangxi.