Innovative-serpentine cooling method of batteries: Both thermal and statistical method approach

IF 4.9 2区工程技术 Q1 ENGINEERING, MECHANICAL

International Journal of Thermal Sciences Pub Date : 2024-09-25 DOI:10.1016/j.ijthermalsci.2024.109437

Ozge Yetik

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引用次数: 0

Abstract

Renewable energy, in particular, is critical for a sustainable world. Effective storage of energy is at the heart of all systems. While energy storage allows us to preserve the beauties offered by nature, it also requires innovative solutions that push the limits of technology. The most important factor affecting the performance of batteries is their temperature. For this reason, the serpentine cooling model, which is an innovative battery cooling method, was evaluated in this study. Generally, in the literature, batteries are considered as heat masses and given a certain heat flux and their temperature distributions are examined. In this study, batteries were connected to each other with busbars as in reality and thermal analyses were performed. In addition, a serpentine cooling method, which has never been used before, was tried as a cooling method in batteries. While all these evaluations were made, statistical analyses were performed for the priority order of the parameters used. All of these situations show how innovative the study is. The NTGK model was used in CFD analyses. 5 different parameters were considered. These are the discharge rate (0.5C, 1C, 1.5C, 2C and 2.5C), the type of refrigerant (air and water), the speed at which the refrigerant enters the model (0.01 m/s, 0.03 m/s and 0.05 m/s), the ambient temperature (293K, 298K and 300K), and the SOH value (50 %, 65 %, 75 %).Water has been shown to be a better refrigerant than air. As the inlet speed of the refrigerant was increased, the discharge rate was reduced, and the SOH value decreased, the temperature values obtained by the model were lower. The temperature values of the batteries according to their location in the model were also examined. 5-factor, 2-level experiments were conducted to examine statistically. It was checked whether the created values fit the distributions and it was seen that the most effective parameter used in the model was the type of refrigerant. In addition, the most statistically effective working conditions were also determined.

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创新的蛇形电池冷却方法：热方法和统计方法

可再生能源对于可持续发展的世界尤为重要。有效的能源储存是所有系统的核心。储能可以让我们保护大自然的美景，但同时也需要突破技术极限的创新解决方案。影响电池性能的最重要因素是其温度。因此，本研究评估了蛇形冷却模型，这是一种创新的电池冷却方法。一般来说，文献中将电池视为热块，并给予一定的热通量，然后研究其温度分布。在本研究中，电池之间用母线连接，就像现实中一样，并进行了热分析。此外，还尝试了一种以前从未使用过的蛇形冷却方法，作为电池的冷却方法。在进行所有这些评估的同时，还对所用参数的优先顺序进行了统计分析。所有这些情况都表明了这项研究的创新性。在 CFD 分析中使用了 NTGK 模型。考虑了 5 个不同的参数。这些参数包括排气速率（0.5C、1C、1.5C、2C 和 2.5C）、制冷剂类型（空气和水）、制冷剂进入模型的速度（0.01 m/s、0.03 m/s 和 0.05 m/s）、环境温度（293K、298K 和 300K）以及 SOH 值（50%、65% 和 75%）。随着制冷剂入口速度的增加、排放速率的降低以及 SOH 值的降低，模型得到的温度值也随之降低。此外，还根据电池在模型中的位置对其温度值进行了研究。进行了 5 因子、2 级实验，以进行统计检验。检查了所创建的值是否符合分布，发现模型中使用的最有效参数是制冷剂类型。此外，还确定了统计上最有效的工作条件。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Thermal Sciences 工程技术-工程：机械

CiteScore

8.10

自引率

11.10%

发文量

531

审稿时长

55 days

期刊介绍： The International Journal of Thermal Sciences is a journal devoted to the publication of fundamental studies on the physics of transfer processes in general, with an emphasis on thermal aspects and also applied research on various processes, energy systems and the environment. Articles are published in English and French, and are subject to peer review. The fundamental subjects considered within the scope of the journal are: * Heat and relevant mass transfer at all scales (nano, micro and macro) and in all types of material (heterogeneous, composites, biological,...) and fluid flow * Forced, natural or mixed convection in reactive or non-reactive media * Single or multi–phase fluid flow with or without phase change * Near–and far–field radiative heat transfer * Combined modes of heat transfer in complex systems (for example, plasmas, biological, geological,...) * Multiscale modelling The applied research topics include: * Heat exchangers, heat pipes, cooling processes * Transport phenomena taking place in industrial processes (chemical, food and agricultural, metallurgical, space and aeronautical, automobile industries) * Nano–and micro–technology for energy, space, biosystems and devices * Heat transport analysis in advanced systems * Impact of energy–related processes on environment, and emerging energy systems The study of thermophysical properties of materials and fluids, thermal measurement techniques, inverse methods, and the developments of experimental methods are within the scope of the International Journal of Thermal Sciences which also covers the modelling, and numerical methods applied to thermal transfer.