夏冬两季风驱雨对墙体内部热湿迁移的影响研究  

Study on the Influence of Wind-driven Rain in Summer and Winter on the Heat and Moisture Transfer Inside the Wall

作　　者：刘苏遥 谢东 侯一帆[1,2,3] 陈国杰 LIU Suyao;XIE Dong;HOU Yifan;CHEN Guojie(School of Civil Engineering,University of South China,Hengyang,Hunan 421001,China;Engineering Lab of Hunan for Building Environment Control,University of South China,Hengyang,Hunan 421001,China;Key Lab of Hunan for the Technologies of Energy Conservation in Prefabricated Buildings,Hengyang,Hunan 421001,China)

机构地区：[1]南华大学土木工程学院,湖南衡阳421001 [2]南华大学建筑环境控制技术湖南省工程实验室,湖南衡阳421001 [3]装配式建筑节能技术湖南省重点实验室,湖南衡阳421001

出　　处：《南华大学学报（自然科学版）》2024年第4期65-73,89,共10页Journal of University of South China：Science and Technology

摘　　要：为探究风驱雨对夏热冬冷地区多层加气混凝土砌块墙体内部热湿迁移的影响,在人工环境舱内分别模拟了夏季和冬季两种气候条件,进行了风驱雨对墙体热湿传递影响的试验研究。结果表明,风驱雨显著促进了墙体的热湿传递;在冬季低温条件下,墙体内部在风驱雨作用下存在结冰、融冰等过程,因此湿度上升较多,其中距离外墙面最近的测点相对湿度上升最高为19.37%;增加降雨时间可以增加风驱雨量,降雨时间为2 h时距离外墙面最近的测点相对湿度上升最高为20.77%。In order to explore the influence of wind-driven rain on the internal heat and moisture transfer of multi-layer aerated concrete block wall in hot summer and cold winter area,the two climatic conditions of summer and winter were simulated in the artificial environment chamber,and the influence of wind-driven rain on the heat and moisture transfer of the wall was studied.The results show that the wind-driven rain significantly promotes the heat and moisture transfer of the wall;under the condition of low temperature in winter,there are processes of icing and melting ice inside the wall under the action of wind-driven rain,so the humidity increases more,and the relative humidity of the measuring point closest to the outer wall surface increases by up to 19.37%.Increasing the rainfall time can increase the wind-driven rainfall.When the rainfall time is 2 h,the relative humidity of the nearest measuring point to the outer wall increases by up to 20.77%.

关 键 词：含湿量 热湿传递 加气混凝土 风驱雨 结冰 

分 类 号：TU551.33[建筑科学—建筑技术科学]