کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4990902 1457107 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental investigation of high-power light-emitting diodes' thermal management by ionic wind
ترجمه فارسی عنوان
بررسی تجربی مدیریت حرارت حرارتی با قدرت بالا با استفاده از باد یونی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
It is urgently necessary to find an effective way to solve the problem of thermal management in high-power light-emitting diodes (HPLED) because most of the input power is converted into heat, which leads to a high junction temperature. Novel ionic wind generators have been developed in the present work for effective cooling of high-power LEDs. The working performance of the ionic wind using 'wire-to-net' and 'needle-to-net' electrodes were investigated experimentally. The electric field intensity distribution of 'needle-to-net' ionic wind generator was described mathematically. The results indicate that better cooling performance could be obtained when thin wire or pointed needle were used at smaller discharge gap with reasonable electrode spacing under negative corona discharge. The maximum electric field intensity could be obtained at the tip of needles. Finally, the advantages of using ionic wind for cooling the LEDs were confirmed to be higher in efficiency, lower in energy consumption and mechanical noise.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 122, 25 July 2017, Pages 49-58
نویسندگان
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