基于三维模拟的夹心保温墙板热工性能量化研究  

Quantitative study on thermal performance of sandwich insulation wall based on three-dimensional simulation

作　　者：张翼 邓琴琴 孙立新 赵矗 邹瑜 高丹 ZHANG Yi;DENG Qinqin;SUN Lixin;ZHAO Chu;ZOU Yu;GAO Dan(China Academy of Building Research Co.Ltd.,Beijing 100013,China;State Key Laboratory of Building Safety and Built Environment,Beijing 100013,China)

机构地区：[1]中国建筑科学研究院有限公司,北京100013 [2]建筑安全与环境国家重点实验室,北京100013

出　　处：《新型建筑材料》2025年第3期65-69,共5页New Building Materials

基　　金：“十四五”国家重点研发计划项目(2023YFC3806300)。

摘　　要：利用Fluent软件对不同工况下夹心保温外墙的热流量进行了三维模拟,并与试验测试结果进行对比。结果表明,在不同工况下,FRP连接件和夹式不锈钢连接件对体系的热流增量均较小;在不同的热工分区下,外墙传热系数越小,同一连接件对体系的热流增量越大;对于同一连接件,内外表面温差的变化在10~40℃对其热流量无明显影响;连接件对体系的影响最大不超过30%;保温层厚度较薄且连接件数量较少时,模拟结果与测试结果误差在10%以内,随着保温层变厚且连接件数量增加,误差逐渐增大但仍保持在20%以内。Three-dimensional simulation of the heat flow of the sandwich thermal insulation facade under different working conditions was carried out using Fluent software and compared with the experimental test results.The results show that under different working conditions,the heat flow increment of FRP connectors and sandwich stainless steel connectors to the system are smaller,under different thermal partition,the smaller the heat transfer coefficient of the external wall,the larger the heat flow increment of the same connector to the system,for the same connector,the change of the temperature difference between the internal and external surfaces in the range of 10~40℃does not have a significant effect on the heat flow,the maximum effect of the connector to the system is not more than 30%.When the thickness of the insulation layer is thin and the number of connectors is small,the error between the simulation results and the test results is within 10%,and as the thickness of the insulation layer becomes thicker and the number of connectors increases,the error gradually increases but still remains within 20%.

关 键 词：夹心保温外墙 三维模拟 热工计算 

分 类 号：TU756.4[建筑科学—建筑技术科学]