This paper will report on the development of a prototype of actively controlled facade module,which is capable of adapting its solar transmittance to changeable solar gains.Hence this new facade offers additional feat...This paper will report on the development of a prototype of actively controlled facade module,which is capable of adapting its solar transmittance to changeable solar gains.Hence this new facade offers additional features with respect to the most popular currently used glass facades,which have fixed solar transmittance indeed.The novel technology is made possible by the creation of an additional 1.5-mm-thick sliding shielding liquid,which flows internally,in order to dynamically adapt the window’s solar transmittance.As compared with competitive technologies,this shielding system has low manufacturing costs,is durable,is completely reversible and always transparent,irrespective of its transmittance state.Specifically,the manufacture of a full-size window prototype and the engineering of the window was carried out;moreover,glass pane bending when subject to hydrostatic pressure was eventually assessed.All this information has been used to set up the industrial process needed for its manufacturing.展开更多
This paper focused on the impact of window shades’physical characteristics and opening modes on annual air conditioning energy consumption of residential buildings in China.Three building models with different window...This paper focused on the impact of window shades’physical characteristics and opening modes on annual air conditioning energy consumption of residential buildings in China.Three building models with different window layouts were proposed initially,and then validated by the dimensionless indicator annual energy performance(AEP)to determine the final building model adopted in this study.Harbin,Beijing,Guangzhou,Changsha and Kunming were selected to represent five different climate zones in China.The shading model has taken six physical characteristics of window shades,viz.outer emissivity,inner emissivity,solar transmittance,solar reflectance,thermal infrared transmittance,conductivity and two opening modes,viz.up&down mode as well as left&right mode,into consideration.Besides,the window shades operation schedule was summarized through 949 valid questionnaires.The annual air conditioning energy consumption was calculated via EnergyPlus software,and then the impact of the above different opening modes and parameters on energy use were investigated.The analysis results indicated that the top&bottom opening mode is better than the left&right mode when used in Harbin,and the effect of two different modes in air conditioning energy consumption in Kunming is similar.But in the other three cities,the left and right mode is preferred.Besides,the analysis results of the impact of different physical characteristics on air conditioning energy use in different climate zones could help improve the energy performance of window shades.展开更多
文摘This paper will report on the development of a prototype of actively controlled facade module,which is capable of adapting its solar transmittance to changeable solar gains.Hence this new facade offers additional features with respect to the most popular currently used glass facades,which have fixed solar transmittance indeed.The novel technology is made possible by the creation of an additional 1.5-mm-thick sliding shielding liquid,which flows internally,in order to dynamically adapt the window’s solar transmittance.As compared with competitive technologies,this shielding system has low manufacturing costs,is durable,is completely reversible and always transparent,irrespective of its transmittance state.Specifically,the manufacture of a full-size window prototype and the engineering of the window was carried out;moreover,glass pane bending when subject to hydrostatic pressure was eventually assessed.All this information has been used to set up the industrial process needed for its manufacturing.
基金the financial supports provided by the National Natural Science Foundation of China(Project no.51978252)China National Key R&D Program‘Solutions to heating and cooling of buildings in the Yangtze River region’(Grant no.2016YFC0700305).
文摘This paper focused on the impact of window shades’physical characteristics and opening modes on annual air conditioning energy consumption of residential buildings in China.Three building models with different window layouts were proposed initially,and then validated by the dimensionless indicator annual energy performance(AEP)to determine the final building model adopted in this study.Harbin,Beijing,Guangzhou,Changsha and Kunming were selected to represent five different climate zones in China.The shading model has taken six physical characteristics of window shades,viz.outer emissivity,inner emissivity,solar transmittance,solar reflectance,thermal infrared transmittance,conductivity and two opening modes,viz.up&down mode as well as left&right mode,into consideration.Besides,the window shades operation schedule was summarized through 949 valid questionnaires.The annual air conditioning energy consumption was calculated via EnergyPlus software,and then the impact of the above different opening modes and parameters on energy use were investigated.The analysis results indicated that the top&bottom opening mode is better than the left&right mode when used in Harbin,and the effect of two different modes in air conditioning energy consumption in Kunming is similar.But in the other three cities,the left and right mode is preferred.Besides,the analysis results of the impact of different physical characteristics on air conditioning energy use in different climate zones could help improve the energy performance of window shades.
