Research On Energy-Saving Technical Transformation Of Existing Residential Window Shade In Changsha Area

In China,building energy consumption accounted for about one-third of the total energy consumption of the society and is increasing year by year.In order to reduce the social energy consumption,during the 12th Five Year,existing residential building energy-saving reform were carried on in hot summer and cold winter zone.Shading is a kind of passive energy saving measures,played an important role to reduce the indoor thermal environment and improve the indoor comfort.Changsha as one of the famous "four stoves" in China,the summer was extremely hot.Shade transformation was a measure to reduce indoor temperature and air conditioning cooling energy consumption measures and had a greater practical effect.Existing residential building energy-saving reform not only improved the design of the residential function,but also reflected the importance of regional culture medium.Based on the geographical profile and climatic characteristics of Changsha area and the general situation of indoor thermal environment in summer,this paper has carried on the following research from the angle of energy saving transformation of existing residential windows:First of all,through the theoretical research,the status quo at home and abroad and the existing status of residential shade research,the existing problems of Changsha area sunshade were summed up and the research direction were clarified.Secondly,based on the shade transformation theory,combining with the influence factors of shade over the changsha area,basic principles and technical requirements,select the suitable residential energy-saving reform of the shade,and discussed respectively.At the same time combined with rehabilitation of representative Design Builder software methods for energy consumption and indoor air temperature simulation,comparison,analysis and optimization of feasible shading energy-saving retrofit scheme is put forward.Finally,through the test of the indoor air temperature of two shading energy saving cases during the second five-year period,the effect of the analysis and transformation is analyzed,which provides the practical basis for the research of this thesis and the popularization of shade.Shade energy saving transformation of existing residential was not only an important way to improve the indoor thermal environment,but also a feasible measure to reduce the social energy consumption.In this paper,a systematic study is carried out on the exterior windows of existing residential buildings in Changsha.The paper can improve the people close attention to energy saving,provide valuable reference for shade energy saving transformation for Changsha 13th Five-Year,and promote the energy saving of existing residential buildings.