烧结金属毡吸液芯平板热管传热特性试验研究  

Experimental investigation on thermal performance of a flat heat pipe

作　　者：寇志海[1] 吕洪涛[1] 陈保东[1] 李广超[1] 刘宇[1] 白敏丽[2] 杨洪武 

机构地区：[1]沈阳航空航天大学航空航天工程学院,辽宁沈阳110136 [2]大连理工大学能源与动力学院,辽宁大连116024 [3]大连金三维科技有限公司,辽宁大连116600

出　　处：《热力发电》2014年第6期51-54,76,共5页Thermal Power Generation

基　　金：国家自然科学基金资助项目(51206115)

摘　　要：提出了一种使用烧结金属毡作为吸液芯的新型平板热管。搭建了该平板热管传热特性的测试系统,通过试验分析了该平板热管的启动性能、均温性能,以及热负荷、工作倾角等对该平板热管传热特性的影响。结果表明,该平板热管具有很强的散热能力,其当量导热系数可以达到壳体材料导热系数的11.2倍,且具有良好的均温特性。A novel flat heat pipe with sintering metal felt wick was put forward,which has features of high heat dissipation capacity,high permeability,high mechanical strength,and convenient manufacture.The thermal performance of this novel flat heat pipe was experimentally investigated under natural convection cooling condition.The startup performance,temperature uniformity characteristics and effects of heating power and tilt angles on thermal performance of the novel flat heat pipe were also analyzed.The results show that the equivalent thermal conductivity of this novel flat heat pipe can be up to 11.2 times higher than that of shell material of the heat pipe.The novel flat heat pipe can also have good temperature uniformity.

关 键 词：烧结金属毡 吸液芯 平板热管 散热能力 导热系数 

分 类 号：TK172.4[动力工程及工程热物理—热能工程]