Effect of pore size distribution in bidisperse wick on heat transfer in a loop heat pipe
Resource
HEAT AND MASS TRANSFER, 47(8), 933-940
Journal
Heat and Mass Transfer
Pages
933-940
Date Issued
2011
Date
2011
Author(s)
Lin, Fang-Chou
Liu, Bing-Han
Juan, Chun-Chia
Chen, Yau-Ming
Abstract
The purpose of this article is to experimentally investigate the effect of different pore size distributions in bidisperse wicks upon the heat transfer performance in a LHP. Three bidisperse wicks and one monoporous wick were tested in a loop heat pipe. The pore size distributions of the bidisperse wicks were measured, and the results reflected the three different large/small pore size ratios. The experiments showed that the maximum heat load of the monoporous wick reached about 400 W; and the three bidisperse wicks showed improvements on the maximum heat load up to 570 W. For the monoporous wick, the evaporator heat transfer coefficients of 10 kW/m2 K and total thermal resistance of 0.19°C/W were achieved at a high heat load of 400 W. For the better bidisperse wick, the evaporator heat transfer coefficients could attain about 23 kW/m2 K and total thermal resistance of 0.13°C/W. The results also indicated that a smaller cluster size in a bidisperse structure created a small pore size ratio. It was also found that the bidisperse wick with smaller clusters had a better enhancement in terms of the evaporator heat transfer coefficient. © 2011 Springer-Verlag.
SDGs
Type
journal article
File(s)![Thumbnail Image]()
Loading...
Name
209.pdf
Size
23.41 KB
Format
Adobe PDF
Checksum
(MD5):96e82eed17d061e8684801b30bb2c195