真空绝热板隔气结构膜渗透性分析及老化实验
发布时间：2018-08-01 17:37
【摘要】：为研究隔气结构膜渗透性对真空绝热板热工性能的影响,对隔气结构膜的渗透原理和渗透性的影响因素进行数值分析,分别分析了温湿度与溶解系数、扩散系数、渗透性的关系,研究发现温度对膜的渗透性影响较大,相对湿度对膜的渗透性的影响较小;基于对隔气结构膜的电镜扫描分析,在不同温度下分别对三种隔气结构膜进行水蒸气渗透性实验研究,结果表明膜的种类、温度对隔气结构膜渗透性的影响较大,膜的渗透性会随着温度的升高而增加。研究结果对真空绝热板膜的选择,性能优化及真空绝热材料的研制具有重要意义。
[Abstract]:In order to study the effect of membrane permeability on the thermal performance of vacuum insulation plate, the permeability principle and the factors affecting permeability of the membrane were analyzed numerically. The temperature, humidity, dissolution coefficient and diffusion coefficient were analyzed respectively. The relationship between permeability, temperature and relative humidity have great influence on membrane permeability, while relative humidity has little effect on membrane permeability. The water vapor permeability of three kinds of membranes was studied at different temperatures. The results show that the type and temperature of membranes have a great influence on the permeability of membranes, and the permeability of membranes will increase with the increase of temperature. The results are of great significance to the selection of vacuum insulation plate membrane, the optimization of performance and the development of vacuum insulation material.
【作者单位】： 上海海事大学商船学院;
【基金】：上海市自然科学基金项目(15ZR1419900)资助
【分类号】：TQ051.893
，
本文编号：2158331
[Abstract]:In order to study the effect of membrane permeability on the thermal performance of vacuum insulation plate, the permeability principle and the factors affecting permeability of the membrane were analyzed numerically. The temperature, humidity, dissolution coefficient and diffusion coefficient were analyzed respectively. The relationship between permeability, temperature and relative humidity have great influence on membrane permeability, while relative humidity has little effect on membrane permeability. The water vapor permeability of three kinds of membranes was studied at different temperatures. The results show that the type and temperature of membranes have a great influence on the permeability of membranes, and the permeability of membranes will increase with the increase of temperature. The results are of great significance to the selection of vacuum insulation plate membrane, the optimization of performance and the development of vacuum insulation material.
【作者单位】： 上海海事大学商船学院;
【基金】：上海市自然科学基金项目(15ZR1419900)资助
【分类号】：TQ051.893
，
本文编号：2158331
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