化工学报Issue(6)：2055-2061,7.DOI:10.11949/j.issn.0438-1157.20141581
多尺度复合毛细芯环路热管的传热特性
Heat transfer characteristics of loop heat pipe with modulated composite porous wick
摘要
Abstract
In order to suffice the different needs for pore size and thermal conductivity of wick in different evaporator regions of loop heat pipe (LHP), a LHP with modulated composite porous wick is constructed and investigated experimentally. The heat transfer characteristics of LHP are tested at different heating powers, inclination angles and cooling conditions. The results show that LHP has good heat transfer performances. The lowest temperature of the evaporator wall center (Tc) is only 64℃ at 200 W. The ice cooling can significantly promote LHP heat transfer performance, reducing Tc and thermal resistance, compared with the air cooling. The lowest thermal resistance is 0.19 K·W−1. Besides, the ice cooling is helpful to improving the temperature uniformity of the evaporator wall. The effects of inclination angles on temperature and thermal resistance vary with the increase of the heating power. At low heating power, Tc of LHP with evaporator and condenser being the same altitude is lower than that with evaporator below condenser. As the heating power rises, the former becomes higher than the latter. In addition, the heat leak from evaporator to compensation chamber can be reduced by applying the modulated composite porous wick. With the increase of heating power, the effects of inclination angles on heat leak are different.关键词
环路热管/毛细芯/多尺度/传热特性/热泄漏Key words
loop heat pipe/wick/multiscale/heat transfer/heat leak分类
能源科技引用本文复制引用
王野,纪献兵,郑晓欢,徐进良..多尺度复合毛细芯环路热管的传热特性[J].化工学报,2015,(6):2055-2061,7.基金项目
国家自然科学基金项目（51276061）；国家高技术研究发展计划项目（2013AA03A113）；国家自然科学基金与广东省联合基金项目（U1034004）；国家自然科学基金重点项目（51436004）。@@@@supported by the National Natural Science Foundation of China (51276061), the National High Technology Research and Development Program of China (2013AA03A113), the Joint Fund of the Natural Science Foundation of China and Guangdong Province (U1034004) and the Key Program of the National Natural Science Foundation of China (51436004) （51276061）
