平面布置振荡热管壁面温度分布特性实验研究  

Experimental Research about the Wall Temperature Distribution on the Oscillating Heat Pipe Fixed up as a Plate

作　　者：赵孝保[1] 李奇贺[1] 董宏伟[1] 恽超[1] 

机构地区：[1]南京师范大学动力工程学院,江苏南京210042

出　　处：《南京师范大学学报（工程技术版）》2005年第1期16-19,共4页Journal of Nanjing Normal University(Engineering and Technology Edition)

基　　金：江苏省高校自然科学基金资助项目(01KGB47003).

摘　　要：实验测量了由振荡热管冷凝段构成的平板表面中管束壁面上横向和纵向温度,对升负荷和降负荷过程中壁面温 度分布特性进行了分析.实验表明平板表面外侧管壁面温度波动幅度较大,中间点温度比较均匀;受管束内汽液流动及剧烈 振荡的影响,在热管蒸发段壁面温度达到90℃时,平板表面温度均匀程度最好;当蒸发段壁面温度为120℃时,横向各点温 度相差比较大.管束壁面纵向温度分布实验表明:蒸发段壁面温度为40℃时,热管未启动;而在120℃时热管完全启动,各测 点温度相差不大;在60℃～80℃时,纵向温度相差较大,温度分布不均匀,靠近蒸发段的测点温度升高较快;蒸发段壁面温度 在80℃以上时,平板表面纵向温度趋于均匀.A plate surface was formed with the condensing section tubes of the Oscillating Heat Pipe, the tube wall temperature is experimentally measured along the crosswise and vertical direction of the Oscillating Heat Pipe, and some analyses are made about the temperature distributive characteristics during the rising heating load and the declining heating load. The experiment shows that the temperature on the outside tube is fluctuated apparently but is even in the center, and that when the evaporating section temperature rises up to 90℃, the plate surface temperature is at the best even, but that when the evaporating section temperature rises up to 120℃, the crosswise temperature is not the same, and that when the evaporating section temperature rises up to 40℃, the oscillating heat pipe is not started, but that when the temperature rises up to 120℃, the heat pipe is fully started and the vertical wall temperature is the same; and that when the evaporating section temperature is between 60～80℃, the vertical wall temperature is different and the temperature near the evaporating section rises quickly, and that when the evaporating section temperature rises up to 80℃, the vertical temperature on the plate surface is even.

关 键 词：振荡热管 温度分布 平板表面 温度均匀度 

分 类 号：TK124[动力工程及工程热物理—工程热物理]