化工学报2016，Vol.67Issue(10)：4104-4110,7.DOI:10.11949/j.issn.0438-1157.20160483
异形整体式热管散热器传热实验与分析
Experiment and simulation analysis of special-shaped overall heat pipe radiator
董梁 1徐伟强 1李倩倩1
作者信息
- 1. 北京航空航天大学航空科学与工程学院，北京 100191
- 折叠
摘要
Abstract
A new structured heat pipe radiator was designed with integration of the evaporator of flat heat pipes and the condenser of finned cupper cylinders, in order to meet the new requirements of heat dissipation and uniform temperature of electrical and electronic equipment. Heat transfer experiments and simulation analysis were performed to study temperature distribution across the heat pipe under various conditions, factors influencing performance and heat transfer capacity. Results showed good temperature control across the heat pipe with difference in the range of 1.75℃. Heating power and convection heat dissipation had influence on starting performance, overall thermal resistance, equivalent thermal conductivity and heat transfer coefficient. With the increase of heating power and convection rate, both start-up time and thermal resistance were decreased whereas equivalent coefficient of thermal conductivity and coefficient of heat transfer were increased. The minimum thermal resistance and the optimal equivalent thermal conductivity of the heat pipe were 0.189℃·W−1and 20964 W·m−1·K−1, respectively. Compared to traditional heat pipe of same dimensions, the new design had a reduction in thermal resistance by 37% and an increase in heat transfer coefficient by 15%.关键词
热管/传热/热阻/当量热导率Key words
heat pipe/heat transfer/heat resistance/equivalent thermal conductivity分类
能源科技引用本文复制引用
董梁,徐伟强,李倩倩..异形整体式热管散热器传热实验与分析[J].化工学报,2016,67(10):4104-4110,7.
