کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7048512 | 1457130 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Experimental study of high power LEDs heat dissipation based on corona discharge
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
High power light-emitting diodes (LEDs) consume most of the applied power as heat, which leads to a high junction temperature; thus, an efficient cooling device is needed. Most of the developed cooling systems face constraints such as cost, consumption, and noise, leading to low work efficiency. In this study, a needle-to-net type ionic wind generator based on corona discharge is suggested for high power LED cooling. The LEDs' junction temperature was calculated by measuring the case temperature, which is called the pin-temperature measurement method. The characteristics of ionic wind in various electrode arrangements or electrical parameters were analyzed, and the case temperature changes induced by ionic wind were measured under various conditions for analysis. The experimental results indicate that the designed ionic wind generator had good cooling performance close to cooling fan, coupled with lower energy consumption and less mechanically induced noise. The maximum ionic wind velocity was measured to be 2.97m/s at a 15âmm discharge distance and 17âkV applied voltage.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 98, 5 April 2016, Pages 420-429
Journal: Applied Thermal Engineering - Volume 98, 5 April 2016, Pages 420-429
نویسندگان
Jing Wang, Yi-xi Cai, Wei-wei Bao, Hui-xia Li, Qian Liu,