کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7053759 1458012 2018 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Investigation on fabrication and capillary performance of multi-scale composite porous wick made by alloying-dealloying method
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Investigation on fabrication and capillary performance of multi-scale composite porous wick made by alloying-dealloying method
چکیده انگلیسی
The multi-scale composite porous wick (MCPW) was fabricated with alloying-dealloying mehtod for the application in the two-phase heat transfer device. The nanostructures were constructed on the sintered copper powders, resulting in the change of surface topography and wettability for MCPW. The capillary rise test was conducted to study the capillary performance based on the IR thermal imaging method. In this study, the comparisons of the two kinds of copper powders and two types of corrosive solutions were conducted to explore porous structure effects and the interactions between the microstructures and nanostructures. Three different working liquids, i.e., acetone, ethanol and water were performed and compared on the MCPW and sintered wick. Test results showed that the MCPW presented hydrophilic performance, facilitating the penetration of the working fluid into the pores. Capillary performance could be significantly enhanced owing to the nanostructures, especially for the sample sintered with irregular copper powder and deallyed by NaOH solution.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 127, Part A, December 2018, Pages 145-153
نویسندگان
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