Visualization experimental on periodic flow characteristics of a flat plate pulsating heat pipe with asymmetric microchannels

ZHAO Zeyuan; XIE Mingxuan; LI Zehao; ZHANG Dong; AN Zhoujian; JIN Jie; DING Yong

doi:10.16085/j.issn.1000-6613.2026-0023

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Visualization experimental on periodic flow characteristics of a flat plate pulsating heat pipe with asymmetric microchannels

更新时间：2026-05-05

- Visualization experimental on periodic flow characteristics of a flat plate pulsating heat pipe with asymmetric microchannels
- Chemical Industry and Engineering Progress (2026)
- 作者机构：
  
  1.兰州理工大学，能源与动力工程学院，甘肃兰州730050
  2.甘肃省太阳能与生物质能互补供能系统重点实验室, 甘肃兰州730050
  3.贵州理工学院，航空航天工程学院，贵州贵阳550003
  4.安徽华东光电技术研究所有限公司，安徽芜湖241003
- 作者简介：
- 基金信息：
- DOI：10.16085/j.issn.1000-6613.2026-0023
  CLC： TK172.4
- Received：08 January 2026，
  
  Revised：2026-04-30，
  
  Accepted：30 April 2026，
- 稿件说明：
移动端阅览
ZHAO Zeyuan, XIE Mingxuan, LI Zehao, et al. Visualization experimental on periodic flow characteristics of a flat plate pulsating heat pipe with asymmetric microchannels[J/OL]. Chemical Industry and Engineering Progress, 2026.
DOI：

ZHAO Zeyuan, XIE Mingxuan, LI Zehao, et al. Visualization experimental on periodic flow characteristics of a flat plate pulsating heat pipe with asymmetric microchannels[J/OL]. Chemical Industry and Engineering Progress, 2026. DOI： 10.16085/j.issn.1000-6613.2026-0023.

摘要

为探究非对称微流道平板脉动热管内部工质的流动和传热特性，本文搭建了可视化实验平板，对比测试了非对称流道脉动热管和对称流道脉动热管在50%充液率，10W~80W加热功率下，0°、30°、60°、90°倾角下的运行性能和工质的流动特性。结果表明，非对称流道脉动热管在90°倾角70W加热功率下热阻达到最低，为0.85℃/W；对称流道脉动热管在60°倾角70W加热功率下热阻最低，为0.88℃/W；非对称流道的设计有效降低了重力对脉动热管传热性能的影响；水平工况下，非对称流道脉动热管在50W加热功率下会形成周期性的脉动流，有效改善了脉动热管在水平工况下的传热性能；即使脉动热管已经烧干，随着加热功率的下降，这种周期性的脉动流动是可恢复的。本文通过可视化方法系统阐述了非对称流道中热驱动力和毛细力协同作用的周期性流动机制，为非对称微流道脉动热管的结构优化提供了实验依据。

Abstract

To investigate the flow and heat transfer characteristics of the working fluid in a flat-plate pulsating heat pipe (PHP) with asymmetric microchannels

a visual experimental platform was established. Comparative tests were conducted on asymmetric-channel and symmetric-channel PHPs under a filling ratio of 50%

heating powers ranging from 10 W to 80 W

and inclination angles of 0°

30°

60°

and 90°. The results show that the asymmetric-channel PHP achieves the lowest thermal resistance of 0.85 ℃/W at 90° inclination and 70 W heating power

while the symmetric-channel PHP reaches its lowest thermal resistance of 0.88 ℃/W at 60° inclination and 70 W heating power. The asymmetric-channel design effectively reduces the influence of gravity on the heat transfer performance of the PHP. Under horizontal conditions

the asymmetric-channel PHP exhibits periodic pulsating flow at 50 W heating power

significantly improving its heat transfer performance in horizontal orientation. Moreover

even after dry-out occurs

the periodic pulsating flow can be restored as the heating power decreases. This study systematically elucidates the periodic flow mechanism driven by the synergistic effect of thermal and capillary forces in asymmetric microchannels through visualization

providing experimental insights for structural optimization of asymmetric microchannel PHPs.

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references

PENG Yifan , WU Jiyang , NI Jiahao , et al . Magnetic-controlled dynamic radiative cooling and solar heating for advanced space thermal management [J ] . Carbon Neutrality , 2025 , 4 : 23 .

XU Yanyan , XUE Yanqin , QI Hong , et al . An updated review on working fluids, operation mechanisms, and applications of pulsating heat pipes [J ] . Renewable and Sustainable Energy Reviews , 2021 , 144 : 110995 .

LING Yunzhi , SHE Xiaohui , ZHANG Xiaosong , et al . A PCM-based thermal management system combining three-dimensional pulsating heat pipe with forced-air cooling [J ] . Applied Thermal Engineering , 2022 , 213 : 118732 .

LI Jingjing , QIAO Lulu , LV Wenjie , et al . Performance response analysis of battery module with nanofluids pulsating heat pipes under normal and high-temperature charging scenarios [J ] . Applied Thermal Engineering , 2024 , 257 : 124339 .

李伟航 , 石千磊 , 曲涛 , et al . 锂离子电池储能热管理系统比较与经济性分析研究发电技术 [J ] . 2025 : 1 - 10 .LIWeihang, SHIQianlei, QUTao, et al. Comparison and Economic Analysis of Thermal Management Systems for Lithium-ion Battery Energy Storage [J ] . Power Generation Technology , 2025 : 1 - 10 .

SU Zipei , HU Yanxin , YAN Yibo , et al . Study on the multi-factors interaction of annular pulsating heat pipe based on response surface method and temperature curve analysis [J ] . Applied Thermal Engineering , 2024 , 236 : 121531

ZHAO Changying , YAN Jun , TIAN Xikun , et al . Progress in thermal energy storage technologies for achieving carbon neutrality [J ] . Carbon Neutrality , 2023 , 2 : 10 .

张东 , 侯宏艺 , 李庆亮 , 等 . 非均匀热流密度条件下脉动热管运行特性分析 [J ] . 华南理工大学学报(自然科学版) , 2022 , 50 ( 7 ): 126 - 135 .

ZHANG Dong , HOU Hongyi , LI Qingliang , et al . Analysis of operation characteristics of pulsating heat pipe under the condition of non-uniform heat flux [J ] . Journal of South China University of Technology (Natural Science Edition) , 2022 , 50 ( 7 ): 126 - 135 .

SHUKLA Anoop Kumar , KUMAR Subrata . Effect of dual diameter length on the performance characteristics of a single loop pulsating heat pipe [J ] . International Communications in Heat and Mass Transfer , 2025 , 164 : 108898 .

LIU Dong , LIU Jianhong , YANG Kai , et al . A Comparative experimental Investigation into the heat transfer characteristics of pulsating heat pipes with symmetric versus asymmetric structures [J ] . Applied Thermal Engineering , 2025 , 266 : 125516 .

王超 , 刘向东 , 沈超群 , 等 . 微型脉动热管气液两相流动与传热特性实验研究 [J ] . 工程热物理学报 , 2018 , 39 ( 6 ): 1285 - 1290 .

WANG Chao , LIU Xiangdong , SHEN Chaoqun , et al . Experimental study on vapor-liquid two-phase flow and heat transfer characteristics in micro pulsating heat pipe [J ] . Journal of Engineering Thermophysics , 2018 , 39 ( 6 ): 1285 - 1290 .

李新泽 , 张双星 , 杨洪海 , 等 . 基于电池冷却用新型脉动热管性能的实验研究 [J ] . 化工学报 , 2024 , 75 ( 6 ): 2222 - 2232 .

LI Xinze , ZHANG Shuangxing , YANG Honghai , et al . Experimental study on performance of new type of pulsating heat pipe for battery cooling [J ] . CIESC Journal , 2024 , 75 ( 6 ): 2222 - 2232

孙轶飞 , 王枭 , 李向舜 , et al . 基于数据驱动代理模型的港口液化天然气冷能发电系统预测控制发电技术 [J ] . 2025 : 1 - 10 .SUNYifei, WangXiao, LiXiangshun, et al. Predictive Control of Port LNG Cold Energy Power Generation System Based on Data-driven Surrogate Model [J ] . Power Generation Technology , 2025 : 1 - 10 .

王明琦 , 夏向阳 , 赵晓悦 , et al . 计及电池荷电状态的储能系统控制策略优化研究发电技术 [J ] . 2025 : 1 - 11 .WANGMingqi, XIAXiangyang, ZHAOXiaoyue, et al. Research on Optimization of Energy Storage System Control Strategy Considering Battery State of Charge [J ] . Power Generation Technology , 2025 : 1 - 11 .

李志 , 贾力 , 魏文博 . 基于板式脉动热管的LED自然对流冷却实验研究 [J ] . 工程热物理学报 , 2013 , 34 ( 7 ): 1361 - 1364 .

LI Zhi , JIA Li , WEI Wenbo . Experimental study on natural convection cooling of LED based on plate pulsating heat pipe [J ] . Journal of Engineering Thermophysics , 2013 , 34 ( 7 ): 1361 - 1364 .

AKBARI KANGARLUEI Rostam , ABBASALIZADEH RANJBARI Majid , RAMEZANPOUR Ahad . An experimental comparison of thermal performance: Smooth and inner-grooved closed loop pulsating heat pipes in different angles [J ] . International Communications in Heat and Mass Transfer , 2021 , 125 : 105306 .

AYEL V , ARANEO L , SCALAMBRA A , et al . Experimental study of a closed loop flat plate pulsating heat pipe under a varying gravity force [J ] . International Journal of Thermal Sciences , 2015 , 96 : 23 - 34 .

惠博 , 侯宏艺 , 张涛 , 等 . 圆柱形环状脉动热管烧干特性 [J ] . 化工进展 , 2023 , 42 ( S1 ): 33 - 40 .

HUI Bo , HOU Hongyi , ZHANG Tao , et al . Drying characteristics of cylindrical annular pulsating heat pipe [J ] . Chemical Industry and Engineering Progress , 2023 , 42 ( S1 ): 33 - 40 .

于慧文 , 崔文宇 , 郝婷婷 , 等 . 梯度润湿表面脉动热管传热性能的研究 [J ] . 化工进展 , 2020 , 39 ( 11 ): 4375 - 4383 .

YU Huiwen , CUI Wenyu , HAO Tingting , et al . Heat transfer performance of wettability gradient surface oscillating heat pipe [J ] . Chemical Industry and Engineering Progress , 2020 , 39 ( 11 ): 4375 - 4383 .

刘建红 , 刘栋 , 商福民 , 等 . 非对称结构脉动热管换热装置传热性能 [J ] . 化工进展 , 2025 , 44 ( 7 ): 3727 - 3736 .

LIU Jianhong , LIU Dong , SHANG Fumin , et al . Heat transfer performance analysis of pulsating heat pipe heat exchanger with asymmetric structure [J ] . Chemical Industry and Engineering Progress , 2025 , 44 ( 7 ): 3727 - 3736 .

MARKAL Burak , CANDERE Ayse , AVCI Mete , et al . Investigation of flat plate type pulsating heat pipes via flow visualization-assisted experiments: Effect of cross sectional ratio [J ] . International Communications in Heat and Mass Transfer , 2021 , 125 : 105289 .

张东 , 徐宝睿 , 王森 , 等 . 非对称微通道平板脉动热管的变工况实验研究 [J ] . 华南理工大学学报(自然科学版) , 2023 , 51 ( 8 ): 51 - 61 .

ZHANG Dong , XU Baorui , WANG Sen , et al . Experimental study of non-symmetry micro channel flat plate pulsating heat pipe under variable conditions [J ] . Journal of South China University of Technology (Natural Science Edition) , 2023 , 51 ( 8 ): 51 - 61 .

WU Suchen , CHEN Shengkai , XIAO Nianhe , et al . Thermo-hydrodynamic performance of tubular pulsating heat pipes with integral sintered powder wicks [J ] . International Communications in Heat and Mass Transfer , 2023 , 141 : 106573 .

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