Study on Daylighting and Energy Conservation Design of Transparent Envelope for office building in Hot Summer and Cold Winter Zone

摘要

The design of transparent envelope not only affects the energy consumption of cooling and heating, but also has a great impact on indoor day lighting (lighting energy consumption), artificial lighting in office building energy consumption counts for the important proportion, and influences the energy consumption for cooling and heating, so it is necessary to study the energy-saving optimal design of transparent envelope for office building. Combined with day lighting, the effects of some parameters on overall energy consumption of cooling, heating and lighting are investigated using simulation software, such as the window to wall ratio, the heat transfer coefficient of window, shading coefficient, transmittance, shading system, and so on, the optimal design of transparent envelope is obtained for office buildings of the summer and cold winter zone. The results show that annual total energy consumption is the lowest when the window to wall ratio is 40% in different window to wall ratios, building facade facing south among different orientations, and the type is on-2/3-l/3-off in different control methods.