کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
668403 1458744 2014 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimization of geometry and flow rate distribution for double-layer microchannel heat sink
ترجمه فارسی عنوان
بهینه سازی توزیع هندسی و جریان برای دو لایه گرمای خنک کننده میکرو کانال
کلمات کلیدی
دو لایه گرمای خنک کننده، بهینه سازی، روش ساده ی کنجد-گرادیان، مقاومت حرارتی جهانی، خنک کننده
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی


• A optimization procedure was developed to optimize double-layer MCHS design.
• Pumping power, flow rate, and pressure drop were constraint conditions, respectively.
• Five geometric parameters and one flow velocity as search variables were optimized.
• Dependences of optimal search variables on constraint conditions were discussed.
• The results provide a guide for double-layer MCHS design.

A three-dimensional solid–fluid conjugated model is coupled with a simplified conjugate-gradient method to optimize the flow and heat transfer in a water-cooled, silicon-based double-layer microchannel heat sink (MCHS). Six design variables: channel number, bottom channel height, vertical rib width, thicknesses of two horizontal ribs, and coolant velocity in the bottom channel are optimized simultaneously to search for a minimum of global thermal resistance. The optimal design variables are obtained at fixed pumping powers, coolant volumetric flow rates, and pressure drops through the MCHS, respectively. The dependences of design variables on the increased pumping power, volumetric flow rate, and pressure drop are discussed. Although the combined optimization is proven effective only for the double-layer MCHS with a specific dimension, it is expected that the proposed design strategy provide a valuable guide for the practical double-layer MCHS design.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Thermal Sciences - Volume 78, April 2014, Pages 158–168
نویسندگان
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