TIAN Zhongxuan, WANG Changhong, ZHEN Huanpei, et al. Heat transfer characteristic of flat plate heat pipe cooling system for LED[J]. CIESC Journal, 2017, (S1): 155-161.
TIAN Zhongxuan, WANG Changhong, ZHEN Huanpei, et al. Heat transfer characteristic of flat plate heat pipe cooling system for LED[J]. CIESC Journal, 2017, (S1): 155-161.DOI: 10.11949/j.issn.0438-1157.20170562.
A new kind of flat plate heat pipe is designed in this article
which uses oxidative dehydration as well as molecular self-assembling method to make hydrophilic and hydrophobic membranes. Membrane's hydrophilicity can be characterized by measuring the contact angle. For hydrophilic membrane
its contact angle is only 9.3°
but that for hydrophobic membrane reaches 153°. Based on the characteristics of the heat pipe after surface modification
four kinds of LED cooling systems are designed for comparison. hot wire method and thermal resistance analysis are used to compare each system's performance. Among theses four cooling systems
the flat plate heat pipe combining with forced convection system has the highest ultimate cooling power