کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7842276 | 1506508 | 2018 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermal and hydraulic analysis of a rectangular microchannel with gallium-copper oxide nano-suspension
ترجمه فارسی عنوان
تجزیه و تحلیل حرارتی و هیدرولیکی یک میکرو کانال مستطیل با نانو سوسپانسیون اکسید گالیم
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کلمات کلیدی
جریان ذرات گالیم، گیرنده خورشیدی میکروکنولوژیکی، انتقال گرما، افت فشار، شاخص عملکرد،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
چکیده انگلیسی
In this work, the utilization of liquid metal nano-suspension in a rectangular microchannel was experimentally investigated with the view to develop a new insight for the fabrication of solar thermal receiver working with liquid metals. Gallium with superior heat transfer behavior was selected as a working fluid and copper oxide was dispersed in it at weight fractions of 5%, 10% and 15%. Effects of various operating parameters including applied heat flux to the microchannel, the concentration of nanoparticles and flow rate of nano-suspension on the heat transfer coefficient, pressure drop and thermo-hydraulic performance of the system were evaluated. Results showed that gallium-based nano-suspensions offer a potential for cooling a high heat flux microchannel surface. The highest thermal performance of ~3.3 was achieved in a laminar regime and at wt%â¯=â¯10. Heat flux and flow rate were found to plausibly enhance the heat transfer coefficient, however, for the mass concentration, the thermo-hydraulic performance was decreased at wt%â¯=â¯15, due to the augmentation of viscosity. Also, it was found that agglomeration and clogging are other reasons for the augmentation of the pressure drop within the microchannel.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 263, 1 August 2018, Pages 382-389
Journal: Journal of Molecular Liquids - Volume 263, 1 August 2018, Pages 382-389
نویسندگان
M.M. Sarafraz, H. Arya, M. Arjomandi,