泡沫铜多孔材料的液体渗透特性研究  

Study on the fluid permeability of porous foam copper materials

作　　者：张晨阳 贾志海[1] 黄宝罗 康学良 ZHANG Chenyang;JIA Zhihai;HUANG Baoluo;KANG Xueliang(School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)

机构地区：[1]上海理工大学能源与动力工程学院,上海200093

出　　处：《能源研究与信息》2023年第2期117-123,共7页Energy Research and Information

基　　金：国家自然科学基金资助项目(51776128)。

摘　　要：目前对波形板汽-水分离装置的研究多集中于结构参数和入口参数的分析,而从其材料特性角度探讨提高分离效果的研究鲜有报道。以去离子水为介质,探讨了泡沫铜多孔材料孔隙率、有效半径以及浸润性对其渗透特性的影响。将修正后的弯毛细管模型与达西定律相结合,建立了泡沫铜渗透率、孔隙率以及有效半径之间的定性关系,即随着泡沫铜孔隙率和有效半径的增加,其渗透性能逐渐增强,这一结论与实验结果符合良好。此外,通过对泡沫铜材料进行浸润改性,分析了浸润性对其渗透性能的影响,结果发现,随着表面能的提高,泡沫铜的渗透性能逐渐增强。Previous studies on the steam-water separator with corrugated plates usually focused on the analysis of structural parameters and inlet parameters,and there were few reports on the improvement of separation performance in terms of the material characteristics.The permeability of porous foam copper materials was investigated.The effect of porosity,effective radius and wettability on the permeability was analyzed using deionized water as the medium.Combining the modified curved capillary model with Darcy's law,a qualitative relationship among the permeability,porosity and effective radius was proposed.The permeability of foam copper gradually increases with the increment of porosity and effective radius,which is consistent with the experimental results.In addition,wetting modification changes the surface energy of foam copper.It is found that with the increase of surface energy,the permeability of foam copper ascends gradually.

关 键 词：多孔材料 渗透 孔隙率 有效半径 浸润性 

分 类 号：TK124[动力工程及工程热物理—工程热物理]