调湿材料应用于全室空间的调湿性能评价方法  

Quantitative Evaluation Method on Practical Moisture Buffering Effect of Hygroscopic Materials in Real-world Buildings

作　　者：石诚楠 张会波 吉野博 SHI Chengnan;ZHANG Huibo;Hiroshi Yoshino(School of Design,Department of Architecture,Shanghai Jiao Tong University,Shanghai 200240,China;Yangtze Delta Region Institute of Tsinghua University,Jiaxing 314000,Zhejiang,China)

机构地区：[1]上海交通大学,设计学院建筑学系,上海200240 [2]浙江清华长三角研究院,浙江嘉兴314000

出　　处：《建筑科学》2019年第10期157-162,共6页Building Science

基　　金：国家自然科学基金面上项目“夏热冬冷地区基于调温调湿围护结构的湿环境控制与节能方法研究”(51778358)

摘　　要：调湿材料作为一种新兴的功能性建材越来越多地被应用于被动式建筑中,它能够抑制建筑室内相对湿度的峰谷,使室内湿环境的变化趋于稳定并降低能耗。以现有调湿材料评价标准及相关模型为基础,在湿缓冲理论的背景下,考虑建筑室内的通风换气次数(ACH)、调湿材料面积与房间体积比LR (Loading Ratio)、湿源负荷等因素,通过在人工气象室内对调湿材料(多孔瓷砖)进行多组实验,提出了一种更加具有实用意义的评价方法,并采用2个无量纲指标MBEa和MBEd用于评价调湿材料对全室空间湿度的缓冲效果。将MBEa/MBEd与其主要影响因素拟合计算,其结果表明:在实际建筑中调湿材料吸/放湿效果随着房间换气次数的减少和LR的增加而呈现指数形式增加。Hygroscopic materials,which can suppress the peak and valley of indoor humidity environment and stabilize humidity fluctuations,are widely used in passive buildings to reduce building energy consumption. Based on the review of existing evaluation standards and related models of hygroscopic materials,a series of experiments examining the moisture buffering effect of hygroscopic materials were conducted in an artificial meteorology room,taking air change rate,hygroscopic material loading ratio and moisture load into account. The experimental data indicate there is limitation of the current modelin evaluating the hygroscopic materials. Furthermore,a new index was proposed to evaluate the moisture adsorption effect( MBEa) and moisture desorption effect( MBEd) of hygroscopic materials at room scale. Based on the relationship between MBEa/MBEdand major influence parameters,the moisture adsorption/desorption effect of hygroscopic materials in real-world buildings increased exponentially with the decrease of ACH or the increase of LR of hygroscopic materials.

关 键 词：湿环境 调湿材料 调湿评价指标 通风换气次数 湿缓冲效果 

分 类 号：TU111.1[建筑科学—建筑理论]