梯形槽道微型平板热管的特性研究  

Characteristics of a Micro Flat Heat Pipe with Trapezoidal Grooves

作　　者：金志浩[1] 代立鹏 汤方丽 赵常铭 

机构地区：[1]沈阳化工大学能源与动力工程学院,辽宁沈阳110142

出　　处：《沈阳化工大学学报》2016年第1期60-64,85,共6页Journal of Shenyang University of Chemical Technology

基　　金：国家重点基础研究发展计划(2011CB706504)

摘　　要：建立并完善具有梯形槽道的平板微热管的两相流稳态模型,着重分析管内汽液压力、弯月面半径的轴向变化,及弯月面接触角角度对热管传热量的影响,更全面考虑到汽液界面剪切作用和壁面摩擦的影响.研究了槽道深度值以及上下底长度比值对热管传热能力的影响,模型计算结果与实验研究数据对比较一致,并在现有研究基础上更精准.该模型为不同槽道形状的微热管理论模型研究提供了修正方法.A two-phase flow steady-state model of a micro flat heat pipe with trapezoidal grooves was developed and perfected, which emphatically analyzed the axial change of tube pressure between vapor and liquid, the meniscus radius and the influence of the degree of meniscus contact angle on heat pipe heat transfer. It comprehensively considered the influence of the vapor-liquid interface shearing action and wall friction. The influences of groove depth and the upper and bottom length ratio the heat transfer capability of heat pipe were studied. Model calculation results were consistent with experimental study theory, and more accurate on the basis of existing research. The model provided a correct method for theoretical model of micro heat pipe with different groove shape.

关 键 词：梯形槽道 平板热管 剪切力 传热能力 

分 类 号：TK172.4[动力工程及工程热物理—热能工程]