کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8941984 | 1645051 | 2018 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Copper foam/PCMs based heat sinks: An experimental study for electronic cooling systems
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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
Copper foam (with porosity 97% and pore density 35 pores per inch) based heat sink without phase change material (PCM) and copper foam/PCM composites heat sinks are investigated to observe the behavior of operational time of heat sinks with respect to specific temperature both for charging and discharging. Paraffin wax, RT-35HC, RT-44HC and RT-54HC are used as PCM. Investigations are performed at heat flux of 0.8-2.4â¯KW/m2 with a gap of 0.4â¯KW/m2 uniformly distributed. PCM volume fractions of 0.68 and 0.83 are used in composites. Results indicated that at the end of 90â¯min charging, maximum temperature reduction of 25% is noted for RT-35HC/Copper foam at 0.8â¯KW/m2 for PCM volume fraction 0.83. Afterwards, RT-44HC/Copper foam reveals maximum temperature reduction of 24% for 1.6â¯KW/m2. RT-35HC/Copper foam is least efficient at 2.4â¯KW/m2 which reduces the base temperature only by 5-7%. Maximum enhancement ratio in operation time is noticed as 8 and 7.7 for RT-35HC/Copper foam and RT-44HC/Copper foam respectively at set point temperature (SPT) of 40â¯Â°C and 60â¯Â°C for respective composites.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 127, Part C, December 2018, Pages 381-393
Journal: International Journal of Heat and Mass Transfer - Volume 127, Part C, December 2018, Pages 381-393
نویسندگان
Tauseef-ur- Rehman, Hafiz Muhammad Ali, Ahmed Saieed, William Pao, Muzaffar Ali,