Analogy between heat and moisture Thermo-hygro-mechanical tailoring of composites by taking into account the second sound phenomenon

A. Szekeres

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Analogy between heat and moisture Thermo-hygro-mechanical tailoring of composites by taking into account the second sound phenomenon

机译：热与湿之间的类比通过考虑第二种声音现象，对复合材料进行热-湿-机械剪裁

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摘要

The well known analogy and cross coupling between heat conduction and moisture diffusion have been extended to other modes of transfer. Theoretical and analytical results and application to composite materials have been obtained.

机译：众所周知，导热和水分扩散之间的类比和交叉耦合已经扩展到其他传递方式。已经获得了理论和分析结果并应用于复合材料。

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来源
《Computers & Structures》 |2000年第3期|145-152|共8页
作者
A. Szekeres;
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作者单位

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类计算技术、计算机技术;
关键词
Heat; Moisture; Transfer;

机译：热;湿气;传递;

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1. Novel adsorption method for moisture and heat recuperation in ventilation: Composites 'LiCl/matrix' tailored for cold climate [J] . Alexandr Shkatulov, Larisa G. Gordeeva, Ilya S. Girnik, Energy . 2020,第Juna15期

机译：通风中水分和热恢复的新型吸附方法：Composites的LiCl / Matrix'为寒冷气候定制
2. Moisture Transport: Tailoring Differential Moisture Transfer Performance of Nonwoven/Polyacrylonitrile‐SiO ₂2 Nanofiber Composite Membranes (Adv. Mater. Interfaces 15/2017) [J] . Babar Aijaz Ahmed, Wang Xianfeng, Iqbal Nousheen, Advanced materials interfaces . 2017,第15期

机译：水分运输：无纺布/聚丙烯腈-SIO的剪裁差分水分转移性能 _{2 2 纳米纤维复合膜（ADV。母体。接口15/2017）}
3. Dethermalization Theory: Thermal/Dielectric Analogy for Heat Flow Through Porosity in Composites [J] . H.I. Ringermacher, B.N. Cassenti Journal of Nondestructive Evaluation . 2013,第4期

机译：脱热理论：复合材料中通过孔隙的热流的热/介电类比
4. THERMO-HYGRO-MECHANICAL BEHAVIOUR OF NONWOVEN BIOCOMPOSITES UNDER VARIOUS ENVIRONMENTAL CONDITIONS [C] . V. Gager, A. Le Duigou, A. Bourmaud, International Conference on Composite Materials . 2019

机译：非织造生物复合材料在各种环境条件下的热效式动力学
5. Effects of heat and moisture on fiberglass composite materials in the load carrying and non-load carrying conditions. [D] . McClurg, Jack Albert. 2002

机译：在负载和非负载条件下，热量和水分对玻璃纤维复合材料的影响。
6. On Indigestion; Its Pathology; and Treatment by the Local Application of Uniform and Continuous Heat and Moisture. With an Account of an Improved Mode of Applying Heat or Cold in Irritative and Inflammatory Diseases [O] . 1848

机译：消化不良；其病理学；通过均匀和连续加热和保湿的局部方法进行处理。考虑到在刺激性和炎症性疾病中应用冷热模式的改进
7. This article presents a new numerical model describing the behaviour of a thermally thick wood sample exposed to high solar heat flux (above 1 MW/m2). A preliminary study based on dimensionless numbers is used to classify the problem and support model building assumptions. Then, a model based on mass, momentum and energy balance equations is proposed. These equations are coupled with liquid-vapour drying model and pseudo species biomass degradation model. By comparing to a former experimental study, preliminary results have shown that these equations are not enough to accurately predict biomass behaviour under high solar heat flux. Indeed, a char layer acting as radiative shield forms on the sample exposed surface. In addition to this classical set of equations, it is mandatory to take into account radiation penetration into the medium. Furthermore, as biomass contains water, medium deformation consecutively to char steam gasification must also be implemented. Finally, with the addition of these two strategies, the model is able to properly capture the degradation of biomass when exposed to high radiative heat flux over a range of sample initial moisture content. Additional insights of biomass behaviour under high solar heat flux were also derived. Drying, pyrolysis and gasification fronts are present at the same time inside of the sample. The coexistence of these three thermochemical fronts leads to char gasification by the steam produced from drying of the sample, which it is the main phenomenon behind medium ablation. [O] . Pozzobon, Victor, Salvador, Sylvain, Bézian, Jean Jacques 2018

机译：本文提供了一个新的数值模型，该模型描述了暴露于高太阳热通量（高于1 / MW / m2）的热厚木材样品的行为。基于无量纲数的初步研究用于对问题进行分类并支持模型构建假设。然后，提出了一种基于质量，动量和能量平衡方程的模型。这些方程式与液体蒸汽干燥模型和假物种生物质降解模型耦合。通过与以前的实验研究进行比较，初步结果表明，这些方程不足以准确预测高太阳热通量下的生物量行为。的确，在样品暴露的表面上形成了充当辐射屏蔽层的炭层。除了这套经典的方程式之外，还必须考虑到辐射向介质的渗透。此外，由于生物质中含有水，因此还必须在炭蒸气汽化后进行连续的介质变形。最后，通过添加这两种策略，该模型能够在一定范围的样品初始水分含量下暴露于高辐射热通量的情况下，正确捕获生物质的降解。还得出了在高太阳热通量下生物量行为的其他见解。样品内部同时存在干燥，热解和气化前沿。这三个热化学前沿的共存会导致样品干燥产生的蒸汽产生焦炭气化，这是介质烧蚀的主要现象。
8. Transient Hydrothermal Stresses in Composites: Coupling of Moisture and Heat with Temperature Varying Diffusivity. [R] . Sih, G. C., Shih, M. T. 1979

机译：复合材料中的瞬态水热应力：水分和热量的耦合随温度的变化扩散。

Analogy between heat and moisture Thermo-hygro-mechanical tailoring of composites by taking into account the second sound phenomenon

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