Simulation and analysis of heat dissipation performance of power battery based on phase change material enhanced heat transfer variable fin structure

2021 ◽  
pp. 1-21
Author(s):  
Zhifeng Chen ◽  
Xiangsheng Li ◽  
Jilong Zhang ◽  
Lifang Ouyang ◽  
Yuyan Wang ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Phase Change ◽  
Phase Change Material ◽  
Heat Dissipation ◽  
Enhanced Heat Transfer ◽  
Power Battery ◽  
Change Material

A Study on Melting Phenomena and Enhanced Heat Transfer of Phase Change Material by Ultrasonic Vibrations

2007 ◽  
Vol 345-346 ◽  
pp. 889-892 ◽  
Author(s):  
Ho Dong Yang ◽  
Yool Kwon Oh
Keyword(s):  
Heat Transfer ◽  
Phase Change ◽  
Phase Change Material ◽  
Fluid Dynamic ◽  
Computational Simulation ◽  
Melting Time ◽  
Liquid Region ◽  
Ultrasonic Vibrations ◽  
Enhanced Heat Transfer ◽  
Change Material

This study focused on observing the melting phenomena and investigated a principle factor of enhanced heat transfer in phase change material when the ultrasonic vibrations were applied during the melting process. For visualization, particle image velocimetry and thermal-vision camera for observing the flow phenomenon was used. Also, experiments were performed to obtain the experimental results such as melting time and temperature distribution. Besides, structural vibration simulator which is applying a coupled finite element-boundary element method (Coupled FE-BEM) was used for calculation of acoustic pressure occurred by ultrasonic vibrations in liquid region. The results of experimental and numerical observations show that acoustic streaming induced by ultrasonic vibrations is one of the prime effects acoustically enhanced phase change heat transfer and help to accelerate the melting of phase change material. Also, the application technique of visualization and computational simulation introduced in this study is very useful and important to analyze the mechanical behavior of material in a fast fluid dynamic or acoustic field.

Nanoparticle enhanced paraffin and tailing ceramic composite phase change material for thermal energy storage

2020 ◽  
Vol 4 (9) ◽  
pp. 4547-4557
Author(s):  
Runfeng Li ◽  
Yang Zhou ◽  
Xili Duan
Keyword(s):  
Heat Transfer ◽  
Energy Storage ◽  
Phase Change ◽  
Phase Change Material ◽  
Ceramic Composite ◽  
Physical Stability ◽  
Enhanced Heat Transfer ◽  
Composite Phase Change Material ◽  
Change Material ◽  
Transfer Properties

A nanoparticle-paraffin-tailing ceramic composite phase change material is developed with good chemical and physical stability and enhanced heat transfer properties.

scholarly journals Study of Thermal Management System Using Composite Phase Change Materials and Thermoelectric Cooling Sheet for Power Battery Pack

Energies ◽  
2019 ◽  
Vol 12 (10) ◽  
pp. 1937 ◽  
Author(s):  
Chuan-Wei Zhang ◽  
Shang-Rui Chen ◽  
Huai-Bin Gao ◽  
Ke-Jun Xu ◽  
Zhan Xia ◽  
...  
Keyword(s):  
Surface Temperature ◽  
Phase Change ◽  
Phase Change Material ◽  
Thermal Management ◽  
Heat Dissipation ◽  
Lithium Ion ◽  
High Rate ◽  
Thermoelectric Cooling ◽  
Power Battery ◽  
Change Material

Scientific and reasonable battery thermal management systems contribute to improve the performance of a power battery, prolong its life of service, and improve its safety. Based on TAFEL-LAE895 type 100Ah ternary lithium ion power battery, this paper is conducted on charging and discharging experiments at different rates to study the rise of temperature and the uniformity of the battery. Paraffin can be used to reduce the surface temperature of the battery, while expanded graphite (EG) is added to improve the thermal conductivity and viscosity of the composite phase change material (CPCM), and to reduce the fluidity after melting. With the increase of graphite content, the heat storage capacity of phase change material (PCM) decreases, which affects the thermal management effect directly. Therefore, this paper combines heat pipe and semiconductor refrigeration technology to transform heat from the inner CPCM to the thermoelectric cooling sheet for heat dissipation. The results show that the surface temperature of the battery can be kept within a reasonable range when discharging at high rate. The temperature uniformity of the battery is improved and the energy of the battery is saved.

scholarly journals A numerical model and validation of phase change material integrated thermoelectric radiant cooling panel

2019 ◽  
Vol 111 ◽  
pp. 01001
Author(s):  
Hansol Lim ◽  
Hye-Jin Cho ◽  
Seong-Yong Cheon ◽  
Soo-Jin Lee ◽  
Jae-Weon Jeong
Keyword(s):  
Heat Transfer ◽  
Heat Transfer Coefficient ◽  
Numerical Model ◽  
Surface Temperature ◽  
Phase Change ◽  
Transfer Coefficient ◽  
Phase Change Material ◽  
Overall Heat Transfer Coefficient ◽  
Radiant Cooling ◽  
Change Material

A phase change material based radiant cooling panel with thermoelectric module (PCM-TERCP) is proposed in this study. It consists of two aluminium panels, and phase change materials (PCMs) sandwiched between the two panels. Thermoelectric modules (TEMs) are attached to one of the aluminium panels, and heat sinks are attached to the top side of TEMs. PCM-TERCP is a thermal energy storage concept equipment, in which TEMs freeze the PCM during the night whose melting temperature is 16○C. Therefore, the radiant cooling panel can maintain a surface temperature of 16◦C without the operation of TEM during the day. Furthermore, it is necessary to design the PCM-TERCP in a way that it can maintain the panel surface temperature during the targeted operating time. Therefore, the numerical model was developed using finite difference method to evaluate the thermal behaviour of PCM-TERCP. Experiments were also conducted to validate the performance of the developed model. Using the developed model, the possible operation time was investigated to determine the overall heat transfer coefficient required between radiant cooling panel and TEM. Consequently, the results showed that a overall heat transfer coefficient of 394 W/m2K is required to maintain the surface temperature between 16○C to 18○C for a 3 hours operation.

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