Thermo-fluid dynamics of pulsating heat pipes for LED lightings
نویسندگان
چکیده
منابع مشابه
Performance characteristics of pulsating heat pipes as integral thermal spreaders
In the recent past, Pulsating Heat Pipes (PHPs) have attracted the attention of many researchers as viable candidates for enhanced heat transfer through passive two-phase heat transfer mechanism. Although a complete theoretical understanding of operational characteristics of this device is not yet achieved, there are many emerging niche applications, ranging from electronics thermal management ...
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Pulsating heat pipe is an efficient heat exchange device which is being used for cooling and heating recovery. In the present work, we made a closed-loop pulsating heat pipe with six U-turns and we used water in our system. Moreover the use of water-Fe3O4 nanofluid was studied with two different filling ratios 40% and 50% and 1% mass concentration. At the end we calculated heat resistance and h...
متن کاملStudy about heat transfer coefficient of water-nanofluid in pulsating heat pipes
Pulsating heat pipe is an efficient heat exchange device which is being used for cooling and heating recovery. In the present work, we made a closed-loop pulsating heat pipe with six U-turns and we used water in our system. Moreover the use of water-Fe3O4 nanofluid was studied with two different filling ratios 40% and 50% and 1% mass concentration. At the end we calculated heat resistance and h...
متن کاملexprimental investigation of the influence of filling ratio on the thermal performance of pulsating heat pipes
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متن کاملMultiobjective optimal design of Light Emitting Diode (LED) lightings
In this paper, a Pareto multiobjective optimization is performed to design new luminaires, finding the optimal forward current, number of LEDs and proper heatsink by taking into account the cost, the energy consumption and the impact on the environment (life cycle analysis from cradle to grave). Three commercialized white LEDs have been studied and modelled in terms of optical, electrical, ther...
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ژورنال
عنوان ژورنال: Mechanical Engineering Journal
سال: 2016
ISSN: 2187-9745
DOI: 10.1299/mej.16-00160