Analysis of Heat Transfer Performance of Double-Layer Copper Tube Heat Exchanger Equipped with Helical Deflector

SUN Yaru; LI Dequan; JI Jiadong; HUA Zisen

doi:10.7652/xjtuxb202408012

您当前的位置：

首页 >

文章列表页 >

Analysis of Heat Transfer Performance of Double-Layer Copper Tube Heat Exchanger Equipped with Helical Deflector

更新时间：2025-07-28

- Analysis of Heat Transfer Performance of Double-Layer Copper Tube Heat Exchanger Equipped with Helical Deflector
- Vol. 58, Issue 8, Pages: 114-123(2024)
- 作者机构：
  
  1. 安徽理工大学数学与大数据学院,安徽,淮南,232001
  2. 安徽理工大学人工智能学院,安徽,淮南,232001
  3. 安徽理工大学机械工程学院,安徽,淮南,232001
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202408012
  CLC： TH123;TK172
- Online First：10 August 2024，
  
  Published：2024
- 稿件说明：
移动端阅览
SUN Yaru, LI Dequan, JI Jiadong, et al. Analysis of Heat Transfer Performance of Double-Layer Copper Tube Heat Exchanger Equipped with Helical Deflector[J]. 2024, 58(8): 114-123.
DOI：

SUN Yaru, LI Dequan, JI Jiadong, et al. Analysis of Heat Transfer Performance of Double-Layer Copper Tube Heat Exchanger Equipped with Helical Deflector[J]. 2024, 58(8): 114-123. DOI： 10.7652/xjtuxb202408012.

摘要

为提高螺旋铜管(SCT)换热器的综合传热性能

通过在换热器内加装螺旋形导流板

采用双向流固耦合计算方法

分析了不同入口流速和导流板安装位置下对换热器内部双层SCT的振动和传热性能的影响。数值结果表明:双层SCT换热器外层SCT的振动强度明显高于内层; 无振动时内层SCT的传热系数高于外层

有振动时外层SCT的传热系数高于内层; 随着入口流速增加

内外层SCT的振幅均增大

传热系数提高; 导流板的安装位置会直接影响SCT的振动和传热特性

且在SCT呈现最大振动强度和最佳传热性能时的安装位置并不相同; 对比振动强化传热参数Q

PEC

和综合传热性能因子R

发现

双层SCT换热器的Q

PEC

和R

均高于单层

两螺旋导流板分别安装在换热器的左、下位置时

PEC

最大

安装在换热器的左、上位置时

最大且比安装在左、下位置时最高增大了7.99%。该研究可为高性能SCT换热器的设计提供理论和数据支撑。

Abstract

In order to improve the comprehensive heat transfer performance of spiral copper tube(SCT)heat exchanger

two helical deflectors are installed in the heat exchanger. The two-way fluid-structure interaction calculation method is used to analyze the effects of different inlet velocities and helical deflector's installed positions on the vibration and heat transfer performances of double-layer SCT in the heat exchanger. The numerical results show that in the double-layer SCT heat exchanger

the vibr

ation intensity of the outer SCT is obviously higher than that of the inner SCT. The heat transfer coefficient of the inner SCT is higher than that of the outer SCT under non-vibration condition

while this coefficient of the outer SCT is higher than that of the inner SCT under vibration condition. With the increase of the inlet velocity

the vibration amplitudes and the heat transfer coefficients of the inner and outer SCT all increase. The deflector's installed position directly affects the vibration and heat transfer performance of the SCT

and the deflector's installed position for the maximum vibration intensity is inconsistent with that for the best heat transfer performance. By comparing the vibration-enhanced heat transfer parameter Q

PEC

and the comprehensive heat transfer performance factor R

it can be observed that the Q

PEC

and R

of the double-layer SCT heat exchanger are both higher than those of the single-layer one. The Q

PEC

value is maximum when the two helical deflectors are installed in the left lower positions of the double-layer SCT heat exchanger. The R

value is maximum when they are installed at the left upper positions of the heat exchanger

and it increases by 7.99% at most compared with the value when they are installed in the left lower positions. The research results provide theoretical and data support for the design of high-performance SCT heat exchangers.

关键词

Keywords

references

BERGLES A E. Recent developments in enhanced heat transfer [J]. Heat and Mass Transfer, 2011, 47(8): 1001-1008.

JI Jiadong, GE Peiqi, LIU Ping, et al. Design and application of a new distributed pulsating flow generator in elastic tube bundle heat exchanger [J]. International Journal of Thermal Sciences, 2018, 130: 216-226.

JI Jiadong, LI Feiyang, SHI Baojun, et al. Analysis of the effect of baffles on vibration and heat transfer characteristics of elastic tube bundles [J]. International Communications in Heat and Mass Transfer, 2022, 136: 106206.

孙亚茹, 季家东, 华子森, 等. 带螺旋折流板的中空换热器振动和传热特性分析 [J]. 振动与冲击, 2023, 42(8): 251-258.

SUN Yaru, JI Jiadong, HUA Zisen, et al. Vibration and heat transfer performances analysis of a hollow helical baffle heat exchanger [J]. Journal of Vibration and Shock, 2023, 42(8): 251-258.

DUAN Derong, GE Peiqi, BI Wenbo. Numerical investigation on heat transfer performance of planar elastic tube bundle by flow-induced vibration in heat exchanger [J]. International Journal of Heat and Mass Transfer, 2016, 103: 868-878.

JI Jiadong, NI Xuwang, SHI Baojun, et al. Influence of deflector direction on heat transfer capacity of spiral elastic tube heat exchanger [J]. Applied Thermal Engineering, 2024, 236: 121754.

李科, 文键, 厉彦忠, 等. 错流板翅式换热器分布参数模型构建和优化研究 [J]. 西安交通大学学报, 2022, 56(10): 81-90.

LI Ke, WEN Jian, LI Yanzhong, et al. Research on construction of distributed parameter model and optimization of cross-flow plate fin heat exchanger [J]. Journal of Xi'an Jiaotong University, 2022, 56(10): 81-90.

季家东, 周蓉, 高润淼, 等. 基于不同截面形状的螺旋弹性管束换热器传热特性分析 [J]. 振动与冲击, 2022, 41(22): 219-225.

JI Jiadong, ZHOU Rong, GAO Runmiao, et al. Analysis on the heat transfer characteristics of spiral elastic tube bundle heat exchangers with different cross section shapes [J]. Journal of Vibration and Shock, 2022, 41(22): 219-225.

SUN Yaru, JI Jiadong, HUA Zisen, et al. Flow-induced vibration and heat transfer analysis for a novel hollow heat exchanger [J]. Journal of Thermophysics and Heat Transfer, 2023, 37(1): 94-103.

WU Jinxing, TIAN Qianhui, SUN Xuezhen, et al. Numerical simulation and experimental research on the comprehensive performance of the shell side of the spiral wound heat exchanger [J]. Applied Thermal Engineering, 2019, 163: 114381.

KHOSRAVI-BIZHAEM H, ABBASSI A, ZIVARI RAVAN A. Heat transfer enhancement and pressure drop by pulsating flow through helically coiled tube: an experimental study [J]. Applied Thermal Engineering, 2019, 160: 114012.

JI Jiadong, GAO Runmiao, CHEN Qinghua, et al. Analysis on fluid-induced vibration and heat transfer of helical elastic tube bundles [J]. Journal of Thermophysics and Heat Transfer, 2021, 35(1): 171-178.

STEHLÍK P, NMCANSKY J, KRAL D, et al. Comparison of correction factors for shell-and-tube heat exchangers with segmental or helical baffles [J]. Heat Transfer Engineering, 1994, 15(1): 55-65.

PENG B, WANG Q W, ZHANG C, et al. An experimental study of shell-and-tube heat exchangers with continuous helical baffles [J]. Journal of Heat Transfer, 2007, 129(10): 1425-1431.

CAO Xing, ZHANG Ruiqi, CHEN Dongming, et al. Performance investigation and multi-objective optimization of helical baffle heat exchangers based on thermodynamic and economic analyses [J]. International Journal of Heat and Mass Transfer, 2021, 176: 121489.

GU Xin, LI Ning, CHEN Cheng, et al. Analysis of fluid retention zones in heat exchangers with segmental baffle and helical baffle [J]. International Journal of Chemical Reactor Engineering, 2022, 20(7): 681-696.

季家东, 葛培琪, 毕文波, 等. 采用不同管排组合的换热器弹性管束壳程流体诱导振动响应 [J]. 西安交通大学学报, 2018, 52(3): 69-75.

JI Jiadong, GE Peiqi, BI Wenbo, et al. Shell-side flow-induced vibration responses of elastic tube bundle based on different tube combinations [J]. Journal of Xi'an Jiaotong University, 2018, 52(3): 69-75.

JI Jiadong, GAO Runmiao, SHI Baojun, et al. Improved tube structure and segmental baffle to enhance heat transfer performance of elastic tube bundle heat exchanger [J]. Applied Thermal Engineering, 2022, 200: 117703.

MASTER B I, CHUNANGAD K S, BOXMA A J, et al. Most frequently used heat exchangers from pioneering research to worldwide applications [J]. Heat Transfer Engineering, 2006, 27(6): 4-11.

JI Jiadong, ZHANG Jingwei, LI Feiyang, et al. Numerical research on vibration-enhanced heat transfer of improved elastic tube bundle heat exchanger [J]. Case Studies in Thermal Engineering, 2022, 33: 101936.

季家东, 邓如意, 卢钰, 等. 椭圆截面螺旋铜管换热器传热性能分析 [J]. 西安交通大学学报, 2023, 57(6): 123-132.

JI Jiadong, DENG Ruyi, LU Yu, et al. Heat transfer characteristic of elliptical section spiral copper tube heat exchanger [J]. Journal of Xi'an Jiaotong University, 2023, 57(6): 123-132.

季家东, 葛培琪, 毕文波. 流体诱导弹性管束振动响应数值分析 [J]. 振动与冲击, 2016, 35(6): 80-84.

JI Jiadong, GE Peiqi, BI Wenbo. Numerical analysis on flow-induced vibration responses of elastic tube bundle [J]. Journal of Vibration and Shock, 2016, 35(6): 80-84.

WEBB R L. Performance evaluation criteria for use of enhanced heat transfer surfaces in heat exchanger design [J]. International Journal of Heat and Mass Transfer, 1981, 24(4): 715-726.

YUN J Y, LEE K S. Influence of design parameters on the heat transfer and flow friction characteristics of the heat exchanger with slit fins [J]. International Journal of Heat and Mass Transfer, 2000, 43(14): 2529-2539.

JAMSHIDI N, FARHADI M, GANJI D D, et al. Experimental analysis of heat transfer enhancement in shell and helical tube heat exchangers [J]. Applied Thermal Engineering, 2013, 51(1/2): 644-652.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Effects of Reverse Baffles on the Heat Transfer Performance of Spiral Tubes in Heat Exchangers

Experimental Research on Performance of Small Scale Cool Storage Apparatus with Gas Hydrate

Experimental and Theoretical Study on Heat and Mass Transfer of Hollow Fiber Membrane Heat Exchanger

New Progress in Researches on Gas-Liquid Uniform Distribution Characteristic and Typical Structure Design of Cryogenic Plate-Fin Heat Exchangers

Numerical Analysis on the Combined Flow Induced Vibration Response of Elastic Tube Bundle in Heat Exchanger

Related Author

CHEN Qinghua

PAN Yuling

ZHAO Jinhui

NI Xuwang

JI Jiadong

樊栓狮 2

郭开华 2

梁德青 2

Related Institution

安徽理工大学第一附属医院

安徽理工大学机电工程学院

Institute of Refrigeration Technology, University of Shanghai for Science and Technology

School of Energy and Power Engineering, Xi'an Jiaotong University

School of Mechanical Engineering, Shandong University

⁰