Analysis of Heat Dissipation Performance between a Horizontal and Longitudinal Battery Pack Based on Forced Air Cooling

The flow and heat transfer characteristics in a forced-air cooled electronic device are calculated with a two-fluid model of turbulence. The fluids are defined as turbulent and nonturbulent, and precludes the need for low-Reynolds number model in the near-wall regions. Transport equations are solved for the zone-averaged variables of each fluid. Empirical relations, established in prior work, are used to express interchange of mass, momentum, and energy at the interface. Gradient-diffusion flux is considered an intrafluid source of turbulence. Several cases are considered showing effects of Reynolds number and heat-dissipation density on the flow and thermal fields. A critical comparison is made between the results based on the application of this model and the conventional k-ε model. Such results include velocity vectors and temperature distribution. In addition, the two-fluid model predicts spatial distribution of the intermittency factor, which provides a measure of the extent of turbulence and mixing in the electronic system.

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Thermal Performance Maps for Forced Air Cooling of Ruggedized Electronics Enclosures

ASME 2007 InterPACK Conference, Volume 2 ◽

10.1115/ipack2007-33641 ◽

2007 ◽

Cited By ~ 1

Author(s):

Jesse VanEngelenhoven ◽

Gary L. Solbrekken ◽

Karl J. L. Geisler

Keyword(s):

Heat Transfer ◽

Pressure Drop ◽

Heat Dissipation ◽

Side Wall ◽

Form Factors ◽

Air Cooling ◽

Heat Transfer Capacity ◽

Flow Pressure ◽

Forced Air ◽

Analytic Models

Based on standard commercial form factors, this study explores chassis-level air cooling limits for ruggedized military electronics enclosures constrained by pressure drop requirements and fin manufacturing capabilities. Numeric and analytic models are developed and used to define a methodology for optimizing the geometry of longitudinal plate fins included in side wall ducts to maximize the amount of heat that can be dissipated from an air-cooled chassis. The results of these analyses are presented in the form of a performance map facilitate the identification of particular fin manufacturing process well-suited for a specified set of mass flow, pressure drop, and heat transfer requirements. Analysis results demonstrate that if isothermal boundaries can be achieved, the heat transfer capacity of the chassis will increase relative to isoflux boundary condition assumptions. As a means to this end, the incorporation of heat pipes into the chassis wall is explored to enhance heat spreading and approach the isothermal limits of heat dissipation in the airflow ducts.

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Synergy analysis on the heat dissipation performance of a battery pack under air cooling

Ionics ◽

10.1007/s11581-020-03676-5 ◽

2020 ◽

Vol 26 (11) ◽

pp. 5575-5584

Author(s):

Yi Yang ◽

Xiaoming Xu ◽

Yangjun Zhang ◽

Hao Hu ◽

Chen Li

Keyword(s):

Heat Dissipation ◽

Battery Pack ◽

Air Cooling

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Optimization of Insulated Gate Bipolar Transistor System to Maximize Heat Dissipation

Journal of Physics Conference Series ◽

10.1088/1742-6596/2070/1/012245 ◽

2021 ◽

Vol 2070 (1) ◽

pp. 012245

Author(s):

Pritam V. Mali ◽

Harshvardhan H. Patil ◽

Girish B. Pawar ◽

Yuvaraj P. Ballal ◽

Pradip B. Patil

Keyword(s):

Heat Dissipation ◽

Removal Rate ◽

Pure Copper ◽

Heat Removal ◽

Bipolar Transistor ◽

Air Cooling ◽

Maximum Heat ◽

Insulated Gate Bipolar Transistor ◽

Igbt Modules ◽

Forced Air

Abstract An electric motor, a battery and an inverter are the key components of any hybrid vehicle. The most commonly used switching device in the electric power conversion system is Insulated Gate Bipolar Transistor (IGBT) modules. Heat sinks with their fins are optimized to provide the maximum heat flow to the surrounding and Pure copper is used as it has high thermal conductivity with reasonable heat resistance. This helps to decrease the temperature of the IGBT and heat will spread to the fins. Parallel forced air cooling is utilised to give maximum possible heat removal rate. Further experimentation was done on a IGBT using an Inverter circuit and it was analyzed on ANSYS software and it was observed that the results obtained by numerical method and experimental method are approximately same.

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Parametric study of forced air cooling strategy for lithium-ion battery pack with staggered arrangement

Applied Thermal Engineering ◽

10.1016/j.applthermaleng.2018.02.080 ◽

2018 ◽

Vol 136 ◽

pp. 28-40 ◽

Cited By ~ 33

Author(s):

Zhao Lu ◽

Xiaoling Yu ◽

Lichuan Wei ◽

Yalin Qiu ◽

Liyu Zhang ◽

...

Keyword(s):

Lithium Ion Battery ◽

Parametric Study ◽

Lithium Ion ◽

Battery Pack ◽

Air Cooling ◽

Cooling Strategy ◽

Staggered Arrangement ◽

Forced Air

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Cooling of a battery pack of a car, working on renewable energy

MATEC Web of Conferences ◽

10.1051/matecconf/201824515003 ◽

2018 ◽

Vol 245 ◽

pp. 15003 ◽

Cited By ~ 5

Author(s):

Ivan Kasatkin ◽

Mikle Egorov ◽

Evgeny Kotov ◽

Evgeny Zakhlebaev

Keyword(s):

Heat Transfer ◽

Heat Dissipation ◽

Heat Removal ◽

Lithium Ion ◽

Operating Mode ◽

Engineering Calculation ◽

Electrical Circuit ◽

Thermal Engineering ◽

Air Cooling ◽

Forced Air

The aim of the work is to choose a method of a solar car battery cooling. The student engineering team of Peter the Great Petersburg Polytechnic University designs the car. The analysis of the electrical circuit of the battery is carried out, the heat release is estimated due to three factors. According to the conditions of reliable operation of the battery, it is necessary to maintain its temperature range below 45°C, which requires cooling. The paper analyzes the possibilities of liquid, air-cooling, compares the free and forced methods of convective heat transfer. For the normal operating mode of the electric vehicle, environmental temperature at the level up to 38°C, a criterion thermal engineering calculation of the forced air-cooling of the corridor assembly of 405 battery cells providing the required heat dissipation is performed. It is shown that relatively high values of the heat transfer coefficient are provided under turbulent flow conditions characterized by Reynolds criteria above 103. On the basis of an analysis of the steady-state stationary heat-removal regime, it was concluded that an air flow provides a temperature gradient, sufficient for cooling the lithium-ion battery of a Solar Car «Polytech Solar».

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