泡沫金属对并联小通道流动沸腾和传热特性影响

doi:10.13334/j.0258-8013.pcsee.191914

English Version Reader LoginJournal Login

您当前的位置：

首页 >

文章列表页 >

泡沫金属对并联小通道流动沸腾和传热特性影响

更新时间：2025-07-03

- 泡沫金属对并联小通道流动沸腾和传热特性影响
- Issue 17, Pages: 5599-5609(2020)
- 作者机构：
  
  1. 东北电力大学能源与动力工程学院
  2. 东北电力大学电气工程学院
- 作者简介：
- 基金信息：
- DOI：10.13334/j.0258-8013.pcsee.191914
  CLC： TK124
- Published：2020
- 稿件说明：
移动端阅览
[J]. 2020, (17): 5599-5609.
DOI：

[J]. 2020, (17): 5599-5609. DOI： 10.13334/j.0258-8013.pcsee.191914.

摘要

泡沫金属由于占用空间小

散热面积大

可以极大地提升换热效率

小通道填充泡沫金属成为近几年强化换热方向的研究热点。对填充10PPI和20PPI的泡沫金属铜的并联小通道进行了流动沸腾实验研究。通过分析不同工况下的沸腾曲线

发现在相同的壁温条件下

热流密度随着质量流速的增加而增加。在相同热流密度下

填充泡沫金属通道相比空管的换热能力更强

并且PPI越高

换热效果越强。同时

在填充泡沫金属的通道中发现核态沸腾和对流沸腾2种沸腾模式。通过分析泡沫金属对换热系数的影响

发现在相同质量流速下

填充泡沫金属通道的换热系数相比空管都有所增加。通过比较可知

不同PPI泡沫金属虽然对换热系数的影响趋势不完全一致

但是对流动沸腾换热都具有明显的增强作用。最后分析了各工况下换热系数变化情况

基于数据拟合建立了填充10PPI和20PPI泡沫金属的换热系数预测模型

结果表明2个模型均具有良好的预测精度。

Abstract

Due to the small space occupation and large heat dissipation area of metal foam

the heat transfer efficiency can be greatly improved

and the small channel filled with metal foam has become a research hotspot in recent years to strengthen the direction of heat transfer. Flow boiling experiments were conducted on parallel small channels filled with 10 PPI（pore per inch） and 20 PPI metal foam copper. By analyzing the boiling curves under different working conditions

it is found that under the same wall temperature condition

the heat flux density increases with the increase of the mass flow rate. At the same heat flux density

the channels filled with metal foam have stronger heat transfer capabilities than empty channels

and the higher the PPI

the stronger the heat transfer effect. At the same time

two boiling modes of nuclear boiling and convective boiling were found in the channels filled with metal foam. By analyzing the effect of metal foam on the heat transfer coefficient

it is found that under the same mass flow rate

the heat transfer coefficient of the filled metal foam channel is increased compared with the empty channel. It can be seen from the comparison that although the influence trend of different PPI metal foams on the heat transfer coefficient is not completely consistent

they all have a significant enhancement effect on the flow boiling heat transfer. Finally

the heat transfer coefficient changes under various working conditions are analyzed. Based on the data fitting

the correlation coefficients of the heat transfer coefficients of 10 PPI and 20 PPI metal foam are established

the results show that both correlations have good prediction accuracy.

关键词

Keywords

references

Hong-Wei Li,Cheng-Zhen Zhang,Di Yang,Bin Sun,Wen-Peng Hong.Experimental investigation on flow boiling heat transfer characteristics of R141b refrigerant in parallel small channels filled with metal foam[J].International Journal of Heat and Mass Transfer,2019.

School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China,School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.Numerical investigation on forced convection of tubes partially filled with composite metal foams under local thermal non-equilibrium condition[J].International Journal of Thermal Sciences,2018.

Yanzhe Li,Shixue Wang,Yulong Zhao.Experimental study on heat transfer enhancement of gas tube partially filled with metal foam[J].Experimental Thermal and Fluid Science,2018.

R.L. Huang,C.Y. Zhao,Z.G. Xu.Investigation of bubble behavior in gradient porous media under pool boiling conditions[J].International Journal of Multiphase Flow,2018.

Gholamreza Bamorovat Abadi,Chanhee Moon,Kyung Chun Kim.Flow boiling visualization and heat transfer in metal-foam-filled mini tubes – Part I: Flow pattern map and experimental data[J].International Journal of Heat and Mass Transfer,2016.

Yu Zhu,Haitao Hu,Shuo Sun,Guoliang Ding.Heat transfer measurements and correlation of refrigerant flow boiling in tube filled with copper foam[J].International Journal of Refrigeration,2014.

Mastaneh Hajipour,Asghar Molaei Dehkordi.Mixed-convection flow of Al 2 O 3 –H 2 O nanofluid in a channel partially filled with porous metal foam: Experimental and numerical study[J].Experimental Thermal and Fluid Science,2014.

Lixin Cheng.Fundamental Issues of Critical Heat Flux Phenomena During Flow Boiling in Microscale-Channels and Nucleate Pool Boiling in Confined Spaces[J].Heat Transfer Engineering,2013(13).

Y. P. Du,C. Y. Zhao,Y. Tian,Z. G. Qu.Analytical considerations of flow boiling heat transfer in metal-foam filled tubes[J].Heat and Mass Transfer,2012.

D. Brutin,L. Tadrist.Pressure drop and heat transfer analysis of flow boiling in a minichannel: influence of the inlet condition on two-phase flow stability[J].International Journal of Heat and Mass Transfer,2003(10).

胡晨昱,赖展程,胡海涛,丁国良,韩维哲.疏水改性对泡沫金属表面池沸腾换热特性的影响[J].制冷技术,2018(06).

孙斌,王晓童,陈晨,杨迪.泡沫金属对圆管内Al_2O_3-水纳米流体流动和传热特性的影响[J].中国电机工程学报,2017(07).

纪献兵,徐进良,Abanda Aime Marthial,薛强.超轻多孔泡沫金属平板热管的传热性能研究[J].中国电机工程学报,2013(02).

Views

151

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Influence of Embedded Metal Foam on Arc Containment Performance of Explosion-proof Power Transformer Tanks

中心正交旋转管道内流动沸腾特性的数值研究

竖直互连小通道内流动沸腾传热强化机理分析

Related Author

LUO Liang

LI Jinzhong

SUN Jiantao

LI Jiaxi

ZHANG Nong

高南京

董一良

苗润晗

Related Institution

Hefei University of Technology

Xi'an Jiaotong University

China Electric Power Research Institute, Haidian District

AI问答

⁰