Experimental Investigation on the Flow and Heat Transfer Characteristics of a Fin and Tube Heat Exchanger Used in Battery Thermal Management

LIU Yi; DU Yi; WAN Hong-Niu; MA Ke-Shuai; JI Wen-Tao

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Experimental Investigation on the Flow and Heat Transfer Characteristics of a Fin and Tube Heat Exchanger Used in Battery Thermal Management

更新时间：2025-01-17

- Experimental Investigation on the Flow and Heat Transfer Characteristics of a Fin and Tube Heat Exchanger Used in Battery Thermal Management
- Moren Journal (2025)
- 作者机构：
  
  1.热流科学与工程教育部重点实验室，能源与动力工程学院，西安交通大学,陕西省西安市710049
  2.青岛求是工业技术研究院,山东省青岛市266427
- 作者简介：
- 基金信息：
  
  Fund Projects: (Shaanxi Province Qin Chuangyuan "Scientist + Engineer" Team Construction Project 2022KXJ-001 and Qingdao Natural Science Foundation funded projects 23-2-1-215-zyyd-jch)(2022KXJ-001)
- DOI：
  CLC： TB01⁺1;TK05
- Received：05 November 2024，
  
  Revised：04 December 2024，
  
  Accepted：2024-12-06
- 稿件说明：
移动端阅览
LIU YI, DU YI, WAN HONG-NIU, et al. Experimental Investigation on the Flow and Heat Transfer Characteristics of a Fin and Tube Heat Exchanger Used in Battery Thermal Management. [J/OL]. Moren journal, 2025.
DOI：

LIU YI, DU YI, WAN HONG-NIU, et al. Experimental Investigation on the Flow and Heat Transfer Characteristics of a Fin and Tube Heat Exchanger Used in Battery Thermal Management. [J/OL]. Moren journal, 2025. DOI：

摘要

基于空气直接冷却的电池热管理，因其成本低、结构简单等优点被广泛应用。然而，随着风速地提高，噪音和功耗也会增加。为此本文针对一典型平直翅片电池热管理用管翅式散热器，采用实验和数值模拟方法研究了在风速为2.1~6.1m/s，（冷却工质入口与空气进口温差）为20~40℃，冷却工质质量流量为0.35kg/s~0.55kg/s时的流动换热特性。研究结果表明，这三个参数对平直翅片散热器的换热性能都有显著影响。随着风速的增加，空气侧换热系数最大提高了102.1%；随着∆

w-a

的增加，换热系数提高了19.1%~28.9%，并与∆

w-a

变化接近线性关系；冷却工质质量流量增加增强了换热，换热系数随之增加，且换热系数在相同流量增幅下增加的程度接近。为了更深入地研究散热器内部的流动状态，根据相同实验条件进行了数值模拟。研究了不同管径、管束列间距等参数变化对换热器换热性能的影响，分析了不同参数对散热器流动换热的影响，获得了相同结构和材料相对较优的换热器几何参数。

Abstract

The direct air-cooling battery thermal management system

it has been widely used due to its advantages such as low cost and simple structure. However

as the air velocity increases

noise and power consumption also increase. Therefore

for a typical flat fin and tube heat exchanger for thermal management of batteries

its flow and heat transfer characteristics were investigated using experimental and numerical methods. By changing the air velocity of 2.1~6.1m/s

(temperature difference between coolant inlet and air inlet) of 20~40℃

and the coolant mass flow rate of 0.35kg/s~0.55kg/s

the heat transfer performance of the heat exchanger is determined. The results demons

trate that these three parameters have a significant effect on the heat transfer performance of the flat fin and tube heat exchanger. With the increase of air velocity

the heat transfer coefficient increased by a maximum of 102.1%; with the increase of

the heat transfer coefficient increased by 19.1% to 28.9%

and close to a linear relationship with

; the increase in mass flow rate of cooling water increases the heat transfer

and the heat transfer coefficient increases to a similar extent with the same flow rate increase. In order to study the flow inside the heat exchanger in depth

numerical simulations were also carried out according to the same experimental conditions. The effects of different pipe diameters and bundle column spacing on the heat exchanger performance were also investigated. The influence of different parameters on the flow and heat transfer of the heat exchanger was analyzed

and the relatively optimal heat exchanger geometrical parameters design with same structure and material were also obtained.

关键词

换热特性平直翅片散热器电池热管理空冷

Keywords

Heat transfer characteristicsflat fin heat exchangerbattery thermal management systemair-cooling

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