1. School of Mechanical Engineering, Hunan University of Technology, Zhuzhou 412007, China 2. School of Vehicle Operation, Hunan Automotive Engineering Vocational College, Zhuzhou 412007, China
A liquid-cooled plate with low thermal resistance, low-pressure loss and uniform temperature is important to guarantee the range of the power battery pack and delay the decay of cell life. To improve the heat transfer performance of the liquid-cooled plate, a power battery pack liquid-cooled plate was used as the object, the temperature uniformity coefficient was constructed, and a new full-featured disturbance element model was proposed. The characteristic parameters and arrangement parameters of the disturbance element were optimized, and a liquid-cooled plate heat transfer experimental rig was built to verify the accuracy of the simulation results of the temperature and pressure drop. Results showed that when the ratio of width to length of the disturbance element structure was 1, the ratio of disturbance element structure width to runner width was 0.5, and the interval between two disturbance elements was 15 mm, the comprehensive performance of the liquid-cooled plate was optimal. After optimization, the temperature uniformity coefficient of the liquid-cooled plate was reduced from 0.339 to 0.121, with an optimization range of 186.03%; the maximum temperature of the liquid-cooled plate after optimization was 24.7 ℃, with a temperature difference of 3 ℃, and the comprehensive error between simulation calculation results and experimental results was 3.79%.
Yong ZHANG,Shen-gong PAN,Shui-chang LIU,Feng-zhao MAO,Qing-yu WANG,He LIU,Yi-fei YIN. Optimization and experimental study of heat transfer in liquid-cooled plate of full-featured disturbance element cells. Journal of ZheJiang University (Engineering Science), 2023, 57(6): 1157-1164.
Fig.3Physical drawing of liquid-cooled plate and heating film
材料
ρ/（kg·m-3）
c/(J·kg?1?K?1)
K/(W·m?2?K?1)
v/(m·s?1)
热源
1 300
1 973
150
—
液冷板
2 700
900
209
—
冷却介质
997
4 181
0.62
0.25
Tab.1Thermophysical properties of simulation materials
Fig.4Monitoring unit location layout diagram
Fig.5Heat dissipation cloud diagram of original liquid-cooled plate
Fig.6Structure of full-feature disturbance element
Fig.7Geometrical model of single runner with disturbance element
Fig.8Variation of aspect ratio of disturbance element to turbulence intensity, pressure drop of flow channel
Fig.9Cloud diagram of velocity distribution of cooling medium when aspect ratio of disturbance element is 1
Fig.10Variation of width ratio of disturbance element and flow channel to turbulence intensity, pressure drop of flow channel
Fig.11Backflow phenomenon at tail of disturbance element
Fig.12Cloud diagram of velocity distribution of cooling medium when width ratio of disturbance element and flow channel is 0.5
Fig.13Variation of number of disturbance element to turbulence intensity, pressure drop of flow channel
Fig.14Variation of interval of disturbance element to turbulence intensity, pressure drop of flow channel
Fig.15Cloud diagram of velocity distribution of cooling medium when interval of disturbance element is 15 mm
Fig.16Liquid-cooled plate of fully-featured disturbance element structure
Fig.17Heat dissipation cloud diagram of optimized liquid-cooled plate
Fig.18Heat transfer experiment platform of liquid-cooled plate
Fig.19Heat dissipation cloud picture of heated film from thermal imager takes
[1]
BANDHAUER T M, GARIMELLA S, FULLER T F, et al A critical review of thermal issues in lithium-ion batteries[J]. Journal of the Electrochemical Society, 2011, 158 (3): R1- R25
doi: 10.1149/1.3515880
[2]
LI T, ZHANG L, SUN Q, et al Capacity loss induced by lithium deposition at graphite anode for LiFePO4/graphite cell cycling at different temperatures [J]. Electrochim Acta, 2013, 111: 802- 808
doi: 10.1016/j.electacta.2013.08.074
[3]
WRINGHT R B, CHRISTOPHERSEN J P, MOTLOCH C G, et al Power fade and capacity fade resulting from cycle-life testing of advanced technology development program lithium-ion batteries[J]. Journal of Power Sources, 2003, 119–121: 865- 869
[4]
LU L G, HAN X B, LI J Q, et al A review on the key issues for lithium-ion battery management in electric vehicles[J]. Journal of Power Sources, 2013, 226: 272- 288
doi: 10.1016/j.jpowsour.2012.10.060
[5]
WANG C H, LIN T, HUANG J T, et al Temperature response of a high power lithium-ion battery subjected to high current discharge[J]. Mater Research Innovations, 2015, 19 (Suppl.2): 156- 160
[6]
SPOTNITZ R, FRANKLIN J Abuse behavior of high-power, lithium-ion cells[J]. Journal of Power Sources, 2003, 113 (1): 81- 100
doi: 10.1016/S0378-7753(02)00488-3
[7]
ROBINSON J B, DARR J A, EASTWOOD D S, et al Nonuniform temperature distribution in Li-ion batteries during discharge: a combined thermal imaging, X-ray micro-tomography and electrochemical impedance approach[J]. Journal of Power Sources, 2014, 252: 51- 57
doi: 10.1016/j.jpowsour.2013.11.059
[8]
曾祥兵, 谢堃, 张伟, 等 新型动力电池热管理系统设计及性能研究[J]. 汽车工程, 2022, 44 (4): 476- 481 ZENG Xiang-bing, XIE Kun, ZHANG Wei, et al Design and performance study of a new type of thermal management system for traction battery[J]. Automotive Engineering, 2022, 44 (4): 476- 481
[9]
徐晓明. 动力电池热管理技术——散热系统热流场分析 [M]. 北京: 机械工业出版社, 2018
[10]
SHAOSEN S U, LI W, LI Y S, et al Multi-objective design optimization of battery thermal management system for electric vehicles[J]. Applied Thermal Engineering, 2021, 196: 117235
doi: 10.1016/j.applthermaleng.2021.117235
[11]
余剑武, 陈亚玲, 范光辉, 等 锂电池并行流道液冷板结构设计和散热性能分析[J]. 吉林大学学报: 工学版, 2022, 52 (12): 2788- 2795 YU Jian-wu, CHEN Ya-ling, FAN Guang-hui, et al Structure design and thermal dissipation performance analysis of liquid cooling plates with parallel flow channels for lithium batteries[J]. Journal of Jilin University: Engineering and Technology Edition, 2022, 52 (12): 2788- 2795
[12]
DENG T, RAN Y, YIN Y L, et al Multi-objective optimization design of thermal management system for lithium-ion battery pack based on non-dominated sorting genetic algorithm II[J]. Applied Thermal Engineering, 2020, 164: 114394
doi: 10.1016/j.applthermaleng.2019.114394
[13]
FAN Y W, WANG Z H, FU T Multi-objective optimization design of lithium-ion battery liquid cooling plate with double-layered dendritic channels[J]. Applied Thermal Engineering, 2021, 199: 117541
doi: 10.1016/j.applthermaleng.2021.117541
[14]
WANG J F, LIU X D, LIU F, et al Numerical optimization of the cooling effect of the bionic spider-web channel cold plate on a pouch lithium-ion battery[J]. Case Studies in Thermal Engineering, 2021, 26: 101124
doi: 10.1016/j.csite.2021.101124
[15]
LI P, LUO Y Y, ZHANG D, et al Flow and heat transfer characteristics and optimization study on the water-cooled microchannel heat sinks with dimple and pin-fin[J]. International Journal of Heat and Mass Transfer, 2018, 119: 152- 162
doi: 10.1016/j.ijheatmasstransfer.2017.11.112
[16]
ANDREOZZI A, MANCA O, NARDINI S, et al Forced convection enhancement in channels with transversal ribs and nanofluids[J]. Applied Thermal Engineering, 2016, 98: 1044- 1053
doi: 10.1016/j.applthermaleng.2015.12.140
[17]
KHAN A A, KIM S M, KIM K Y Performance analysis of a microchannel heat sink with various rib configurations[J]. Journal of Thermophysics and Heat Transfer, 2016, 30 (4): 782- 790
doi: 10.2514/1.T4663
[18]
LIU J, XIE G, SIMON T W, et al Turbulent flow and heat transfer enhancement in rectangular channels with novel cylindrical grooves[J]. International Journal of Heat and Mass Transfer, 2015, 81: 563- 577
doi: 10.1016/j.ijheatmasstransfer.2014.10.021
[19]
XU X M, HE R Review on the heat dissiPation performance of battery pack with different structures and operation conditions[J]. Renewable and Sustainable Energy Reviews, 2014, 29: 301- 315
doi: 10.1016/j.rser.2013.08.057
[20]
WELTENS H, BRESSIER H, TERRES F, et al Optimization of catalytic converter gas flow distribution by CFD prediction[J]. SAE Technical Paper, 1993, 930780
[21]
周全, 夏克青. Rayleigh-Bénard对流中温度边界层统计特性的实验研究 [C]// 中国力学学会学术大会'2009论文摘要集. 郑州: [s.n.], 2009: 173-174. ZHOU Quan, XIA Ke-qing. Experimental study on statistical properties of temperature boundary layer in Rayleigh-Bénard convection [C]// Abstract collection of Papers '2009 Conference of Chinese Society of Mechanics. Zhengzhou: [s.n.], 2009: 173-174.
