کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
656443 | 1458043 | 2016 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Modeling metal foam enhanced phase change heat transfer in thermal energy storage by using phase field method
ترجمه فارسی عنوان
مدل سازی فوم فلزی افزایش فاز تغییر انتقال حرارت در ذخیره انرژی حرارتی با استفاده از روش میدان فاز
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
روش میدان فاز، انتقال حرارت تغییر فاز، فوم فلزی، ذخیره انرژی حرارتی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
A numerical study on the solid-liquid phase change in open-cell metal foams is carried out by the phase field method originated from the Ginzburg-Landau theory. The Brinkman-Forchheimer extended Darcy equation and the local thermal non-equilibrium model are adopted to take natural convection and the heat transfer between metal foams and phase change materials (PCMs) into consideration, respectively. The result proves that the phase field model is reliable and effective in modeling metal foam enhanced phase change heat transfer in thermal energy storage. The effects of key parameters, such as Rayleigh number, porosity and pore density, on the melting and solidification process are investigated and it is found that they have great influence on the solid-liquid phase change. The phase field, flow field and temperature distributions in the melting and solidification process are obtained. Furthermore, kinetic undercooling in the solidification process is studied. It is concluded that heat conduction through the ligament of metal foams plays a dominant role in the solid-liquid phase change and kinetic undercooling effect is weakened as kinetic coefficient decreases.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 99, August 2016, Pages 170-181
Journal: International Journal of Heat and Mass Transfer - Volume 99, August 2016, Pages 170-181
نویسندگان
Y. Zhao, C.Y. Zhao, Z.G. Xu, H.J. Xu,