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yushui1983

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新型建筑墙体保温材料的开发和研究随着对建筑节能能耗的要求而逐渐成为一个重点,但该类多孔介质材料的热湿物性参数的研究仍是一个空白。对围护结构热湿耦合传递的研究,将更准确的获得影响室内热湿环境的因素,以及为改善室内热湿环境提出有效的方法和途径。本文通过直接和间接手段分析该类问题热湿物性参数研究方法。根据ASTM E96-05等标准,对EPS,XPS,PU的等温吸放湿曲线,水蒸气渗透系数进行了实测和分析。利用反问题法对热湿耦合问题进行全参数辨识的过程进行了详细的描述。得到材料平衡含湿量和水蒸气渗透系数随相对湿度变化关系式,为围护结构热湿耦合传递研究提供了基础数据。

参考:coupled heat and moisture transfer;inverse problem;isothermal sorption curve;water vapor permeability
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syh9288

捐助贵宾 (著名写手)

海军上将

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zap65535(金币+0,VIP+0):为避免求助者分次给分,建议写明“抢答”占楼,然后一次性应答。 1-12 01:47
yushui1983(金币+15,VIP+0): 1-12 14:08
with the requirements for the energy conservation and consumption of building,the research and development of the new insulation materials for the wall's building gradually become a focus,but the studies on the thermally and moistly physical parameter for this type of porous medium materials is still in blank space.
人生如梦,一樽还酹江月
2楼2010-01-10 18:40:41
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syh9288

捐助贵宾 (著名写手)

海军上将

the research on the coupled heat and moisture transfer of the enclosure structure will result in attaining the accurate factor affecting the indoor thermal and moist environment and provide the effective pathways and methods for improving the indoor thermal and moist environment
人生如梦,一樽还酹江月
3楼2010-01-10 18:52:04
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syh9288

捐助贵宾 (著名写手)

海军上将

in this paper,the researching method for parameters of the thermal and moist properties is analysed in the direct and indirect ways.According to ASTM E96-05 standard,the isothermal sorption curve and the coefficient of water vapor permeability  for EPS, XPS and PU could be carried on the actual measurement and analysis.
人生如梦,一樽还酹江月
4楼2010-01-10 22:05:04
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syh9288

捐助贵宾 (著名写手)

海军上将

the all-parameteric identification process for the problem of the coupled heat and moisture is described in detail by the method of inverse problem.
the equation that the balanced moisture content of materials and coefficient of the water vapor permeability is in dynamic state with the relative humidity provides the data base for the coupled heat and moisture transfer of the enclosure structure.
人生如梦,一樽还酹江月
5楼2010-01-10 22:19:43
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