An experimental study on heat transfer performance of a pulsating heat pipe radiator for CPU heat dissipation

Autor: Shang Fumin, Yang Qingjing, Liu Chaoyue, Fan Shilong, Liu Jianhong
Jazyk: English<br />French
Rok vydání: 2020
Předmět:
Zdroj: E3S Web of Conferences, Vol 165, p 06035 (2020)
Druh dokumentu: article
ISSN: 2267-1242
DOI: 10.1051/e3sconf/202016506035
Popis: To meet the requirement of electronic heat dissipation with high heat flux, a kind of heat dissipation device using pulsating heat pipe (PHP) for CPU heat dissipation was put forward. The heat transfer performance and surface temperature distribution of the radiator are analyzed by analyzing the wall temperature distribution and the distribution of the evaporator and condenser of the PHP. The experimental results show that the change of wind speed has obvious influence on the operation of the PHP radiator. The surface temperature distribution of the PHP radiator is very uniform, which is especially beneficial for CPU cooling. The heat transfer performance of the PHP is better, and the minimum average thermal resistance is 0.19 k/W. In addition, there is no drying phenomenon when the temperature reaches about 120 °C, which indicates that the pulsating heat pipe has a very high heat transfer limit.
Databáze: Directory of Open Access Journals