摘要
展览建筑的空间与功能特殊,优化其门厅空间界面性能对解决室内热环境和建筑能耗问题有较大实践意义。选取长沙市某美术馆进行实地热环境参数测量,利用Kriging插值法生成门厅空间温湿度3D堆叠图,可视化分析了其热环境状况,发现门厅受到透明界面的影响最大。根据当地气象条件和建筑相关参数建立DesignBuilder模型,经误差分析后进行建筑性能模拟,再结合熵权法建立热环境耦合能耗综合评价模型,从透明围护结构热工性能、遮阳设计等方面提出优化策略:1)将透光幕墙更换为隔热金属型材6中透光Low-E+12氩气+6透明玻璃幕墙;2)加装活动式外遮阳,09:00—12:00时百叶最佳运行角度为150°,12:00—17:00时为30°。优化结果显示:相较原门厅,优化后门厅冬季平均气温上升0.19℃,夏季降低2.23℃,全年适中气温时长增加40.7%。该策略的经济成本可在18 a内回收,并能减少378635 kg CO_(2)和103545 kg粉尘排放。
The exhibition building has special space and function,so optimizing the interface performance of the lobby space is of great practical significance to solve the problems of indoor thermal environment(ITE)and building energy consumption(BEC).An art museum in Changsha City was selected to measure its field ITE parameters.Kriging interpolation method was then used to generate a 3D stacked map of temperature and humidity in the lobby space,and the ITE conditions were visually analyzed.It was found that the lobby was most affected by the transparent interface.A Design Builder model was established according to local meteorological conditions and building parameters,which was used to simulate building performance after error analysis.Then,a comprehensive evaluation model of ITE coupling BEC was established by combining the entropy weight method.Optimization strategies were proposed from the aspects of thermal performance and shading design of transparent envelope structure.1)The transparent curtain wall should be replaced with the transparent glass curtain wall of heatinsulating metal profile 6 in Low-E+12 argon+6;2)Equipped with a movable external sunshade,and the optimal operation angle of louvers from 09:00 to 12:00 is 150°,and from 12:00 to 17:00 is 30°.The optimization results show that compared with the original lobby,the average temperature in the lobby increased by 0.19℃in winter,decreased by 2.23℃in summer,and the duration of the annual moderate temperature increased by 40.7%.The economic cost of this strategy can be recovered within 18 years,and 378635 kg of CO_(2) and 103545 kg of dust emissions can be reduced.
作者
肖敏
杜思达
宋晟
XIAO Min;DU Sida;SONG Sheng(School of Architecture,Changsha University of Science&Technology,Changsha 410076,China)
出处
《建筑科学》
CSCD
北大核心
2024年第2期237-247,共11页
Building Science
基金
住房和城乡建设部科学技术计划项目(2021-K-105)
湖南省自然资源厅科技计划项目(2022-27)。
关键词
展览建筑
门厅界面
空间插值
综合评价
节能优化
exhibition building
lobby interface
spatial interpolation
comprehensive evaluation
energy-saving optimization
