湿迁移对墙体传热的影响分析
Release time:2024-08-09
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- Affiliation of Author(s):
- 建筑设备科学与工程学院
- Journal:
- 土木建筑与环境工程
- Key Words:
- 中文关键字:热湿耦合传递;变物性参数;相变潜热;温度;热流,英文关键字:coupled heat and moisture transfer; inconstant phy
- Abstract:
- 考虑温湿度对墙体材料热湿物性参数的影响,建立以相对湿度和温度为驱动势的墙体热湿耦合传递模型。在变温湿度边界条件下对墙体非稳态热湿耦合传递过程进行分析,计算得到墙体表面温湿度及热流密度,与不考虑传湿情况进行对比分析。结果表明:不考虑吸放湿时墙体内表面温度比考虑吸放湿时变化幅度大,且前者内表面平均温度与后者相差约0.9℃;因墙体内表面吸放湿作用引起的相变潜热约占总壁体传热量的27.5%,在负荷计算中不可忽略。
- Note:
- 刘艳峰
- First Author:
- liujiaping,liuyanfeng,wangyingying
- Indexed by:
- Journal paper
- Volume:
- 卷:34
- Issue:
- 期:6
- Page Number:
- 页:109-114
- Translation or Not:
- no
- Date of Publication:
- 2012-12-01
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