Numerical simulation of coupled heat and mass transfer in hygroscopic porous materials considering the influence of atmospheric pressure

Li FZ; Li Y; Liu YX; Luo ZX

首页> 外文期刊>Numerical Heat Transfer, Part B. Fundamentals: An International Journal of Computation and Methodology >Numerical simulation of coupled heat and mass transfer in hygroscopic porous materials considering the influence of atmospheric pressure

【24h】

Numerical simulation of coupled heat and mass transfer in hygroscopic porous materials considering the influence of atmospheric pressure

机译：考虑大气压影响的吸湿多孔材料传热传质耦合数值模拟

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

A model of simultaneous transport in hygroscopic porous materials was developed. Water in fabrics is considered to be present in three forms: liquid water in the void space between fibers, bound water in the fibers, and vapor. It is assumed that the heat and mass transport mechanisms include movement of liquid water due to the capillarity and atmospheric pressure gradient, diffusion of vapor within interfibers due to the partial pressure gradient of vapor and total gas pressure gradient, diffusion of vapor into fiber, evaporation, and condensation of water. The moisture diffusion process into hygroscopic porous materials such as wool fabrics was simulated. At normal atmospheric pressure, the results were compared with experimental data on the temperature and water content changes reported in the literature. The distribution of temperature, moisture concentration, liquid water saturation, and atmospheric pressure in the void space between fibers at different boundary conditions are numerically computed and compared. The conclusion is that atmospheric pressure gradient has significant impact on heat and mass transport processes in hygroscopic porous materials.

机译：建立了在吸湿性多孔材料中同时运输的模型。织物中的水被认为以三种形式存在：纤维之间的空隙中的液态水，纤维中的结合水以及蒸汽。假设传热和传质机理包括：由于毛细作用和大气压梯度而引起的液态水运动;由于蒸汽的分压梯度和总气体压力梯度而引起的蒸汽在纤维间的扩散;蒸汽向纤维中的扩散;蒸发。以及水的凝结。模拟了水分在吸湿性多孔材料（如羊毛织物）中的扩散过程。在正常大气压下，将结果与文献中报道的有关温度和水含量变化的实验数据进行比较。计算并比较了在不同边界条件下纤维之间的空隙空间中的温度，水分浓度，液态水饱和度和大气压力的分布。结论是，大气压梯度对吸湿性多孔材料的传热和传质过程具有重要影响。

著录项

来源
《Numerical Heat Transfer, Part B. Fundamentals: An International Journal of Computation and Methodology》 |2004年第3期|共14页
作者
Li FZ; Li Y; Liu YX; Luo ZX;
展开▼
作者单位

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类热力工程、热机;
关键词
LIQUID MOISTURE TRANSFER; DIFFUSION; SORPTION; TEXTILES; WATER; CONDENSATION; FABRICS; MODEL;

机译：液体水分传递;扩散;吸附;纺织;废水;冷凝;织物;模型;

相似文献

外文文献
中文文献
专利

1. Numerical simulation of coupled heat and mass transfer in hygroscopic porous materials considering the influence of atmospheric pressure [J] . Li FZ, Li Y, Liu YX, Numerical Heat Transfer, Part B. Fundamentals: An International Journal of Computation and Methodology . 2004,第3期

机译：考虑大气压影响的吸湿多孔材料传热传质耦合数值模拟
2. Numerical study of the influence of the atmospheric pressure on the heat and mass transfer rates of desiccant wheels [J] . C.R. Ruivo, J.J. Costa, A.R. Figueiredo International Journal of Heat and Mass Transfer . 2011,第7a8期

机译：大气压力对除湿轮传热传质速率影响的数值研究
3. Heat transfer enhancement and pressure drop penalty in porous solar heaters: Numerical simulations [J] . Bovand M., Rashidi S., Esfahani J. A. Solar Energy . 2016,第JANa期

机译：多孔太阳能加热器中的传热增强和压降损失：数值模拟
4. Modeling Coupled Heat and Mass Transfer in Drying Capillary Hygroscopic and Non-Hygroscopic Porous Materials [C] . A. G. Malan, R. W. Lewis, R. S. Ransing International Conference on Modeling of Casting, Welding and Advanced Solidification Processes . 2003

机译：干燥毛细管吸湿性和非吸湿多孔材料的耦合热量和传质
5. Understanding the heat and mass transfer of hygroscopic porous materials. [D] . Roberts, John Stuart. 1999

机译：了解吸湿性多孔材料的传热和传质。
6. Numerical Simulation for the Unsteady MHD Flow and Heat Transfer of Couple Stress Fluid over a Rotating Disk [O] . Najeeb Alam Khan, Shahnila Aziz, Nadeem Alam Khan -1

机译：旋转盘上耦合应力流体的非稳态MHD流动和传热的数值模拟
7. Computational simulation of multi-phase coupled heat and moisture transfer in phase change and self-heating porous materials [O] . Li S, Li Y, Li FZ, 2007

机译：相变和自热多孔材料中多相耦合传热和水分传递的计算模拟
8. Multiphase Heat and Mass Transfer Through Hygroscopic Porous Media withApplications to Clothing Materials [R] . Gibson, P. 1996

机译：通过吸湿多孔介质的多相传热传质及其在服装材料中的应用

Numerical simulation of coupled heat and mass transfer in hygroscopic porous materials considering the influence of atmospheric pressure

摘要

著录项

相似文献

相关主题

期刊订阅