| 建筑调湿材料吸放湿速度变化规律 |
| |
| 引用本文： | 黄子硕,于航,张美玲.建筑调湿材料吸放湿速度变化规律[J].同济大学学报(自然科学版),2014,42(2):0310-0314. |
| |
| 作者姓名： | 黄子硕 于航 张美玲 |
| |
| 作者单位： | 同济大学机械与能源工程学院,同济大学机械与能源工程学院,同济大学机械与能源工程学院 |
| |
| 摘 要： | 实验测得了4种建筑材料样品在不同相对湿度条件下的平衡含湿量.将4种样品置于环境参数不同的恒温恒湿环境中进行12h吸湿12h放湿的吸放湿周期试验,测得了样品在各个环境条件下吸(放)湿过程中每小时的吸(放)湿量.实验结果表明,在样品所处环境相对湿度相同时,各实验样品的量纲为一的吸放湿速度是时间的同一幂函数.数值拟合得到了环境相对湿度分别为95%和75%时样品的量纲为一的吸放湿速度的表达式.给出了样品在恒温恒湿环境(风速在2.0m·s-1以下)中材料每小时吸放湿量计算值的相对误差.
|
| 关 键 词： | 调湿材料 含湿量 吸放湿速度 幂函数 |
| 收稿时间： | 2013/1/28 0:00:00 |
| 修稿时间： | 2013/10/24 0:00:00 |
Humidity control Materials and Their Humidity Absorption and Desorption Rate Variation |
| |
| HUANG Zishuo,YU Hang and ZHANG Meiling.Humidity control Materials and Their Humidity Absorption and Desorption Rate Variation[J].Journal of Tongji University(Natural Science),2014,42(2):0310-0314. |
| |
| Authors: | HUANG Zishuo YU Hang and ZHANG Meiling |
| |
| Institution: | School of Mechanical Engineering Tongji University,School of Mechanical Engineering Tongji University,School of Mechanical Engineering Tongji University |
| |
| Abstract: | The equilibrium moisture content under different humidity conditions of four test samples has been tested. We also measured the weight changes of the samples in every hour under different temperature and relative humidity (RH). Experimental results indicate that at same air environment the relationship between dimensionless absorption/ desorption rate and the time can be fitted by a same power function. Through numerical fitting obtained the expression of the dimensionless absorption and desorption rate under the ambient humidity 75%RH and 95%RH respectively. The relative error between the calculated value and measured value of moisture absorption/desorption rate at any hours during the 12 hours also formulated. |
| |
| Keywords: | humidity-control materials moisture content absorption and desorption rate power function |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《同济大学学报(自然科学版)》浏览原始摘要信息 |
| 点击此处可从《同济大学学报(自然科学版)》下载免费的PDF全文 |
