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Numerical Study of an Energy Storage Container with a Flat Plate Phase Change Unit Characterized by an S-Shaped Flow Channel

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  • Zhanjun Guo

    (School of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450046, China)

  • Sen Liu

    (School of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450046, China)

  • Jiali Wang

    (School of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450046, China)

  • Yanping Xu

    (Henan Ju’an Heating Technology Co., Ltd., Zhengzhou 450000, China)

  • Zhangyang Kang

    (School of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450046, China)

  • Jinsheng Zhang

    (School of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450046, China)

Abstract

China’s rapid economic development and rising energy consumption have led to significant challenges in energy supply and demand. While wind and solar energy are clean alternatives, they do not always align with the varying energy needs across different times and regions. Concurrently, China produces substantial amounts of industrial waste heat annually. Effective recycling of this waste heat could substantially mitigate energy supply and demand issues. The Mobile Thermal Energy Storage (M-TES) system is a key solution to address these challenges, as it helps manage the uneven distribution of energy over time and space. This article establishes a packaged M-TES based on a plate-type phase change unit. Based on different placement methods of the plate-type phase change unit, different inlet temperatures and phase change temperature differences, and different inlet and outlet directions, the complete charging and discharging process of the packaged phase change thermal storage system was simulated using ANSYS FLUENT 2022 R1 software. The results showed that during the heating process of the entire system, the horizontal placement of the plate-type phase change unit and the inlet and outlet methods of the heat transfer fluid (HTF) significantly improved the heating effect of the system, increasing it by 15.9%. Increasing the temperature difference between the inlet temperature of the heat transfer fluid and the melting temperature of the phase change material (PCM) from 4 K to 19 K can increase the melting rate of PCM by approximately 54.9%

Suggested Citation

  • Zhanjun Guo & Sen Liu & Jiali Wang & Yanping Xu & Zhangyang Kang & Jinsheng Zhang, 2024. "Numerical Study of an Energy Storage Container with a Flat Plate Phase Change Unit Characterized by an S-Shaped Flow Channel," Sustainability, MDPI, vol. 16(17), pages 1-15, August.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:17:p:7441-:d:1466110
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    References listed on IDEAS

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    1. Geng, Xiaoye & Li, Wei & Wang, Yu & Lu, Jiangwei & Wang, Jianping & Wang, Ning & Li, Jianjie & Zhang, Xingxiang, 2018. "Reversible thermochromic microencapsulated phase change materials for thermal energy storage application in thermal protective clothing," Applied Energy, Elsevier, vol. 217(C), pages 281-294.
    2. Bhagat, Kunal & Saha, Sandip K., 2016. "Numerical analysis of latent heat thermal energy storage using encapsulated phase change material for solar thermal power plant," Renewable Energy, Elsevier, vol. 95(C), pages 323-336.
    3. Zhangyang Kang & Wu Zhou & Kaijie Qiu & Chaojie Wang & Zhaolong Qin & Bingyang Zhang & Qiongqiong Yao, 2023. "Numerical Simulation of an Indirect Contact Mobilized Thermal Energy Storage Container with Different Tube Bundle Layout and Fin Structure," Sustainability, MDPI, vol. 15(6), pages 1-13, March.
    4. Zhanjun Guo & Wu Zhou & Sen Liu & Zhangyang Kang & Rufei Tan, 2023. "Effects of Geometric Parameters and Heat-Transfer Fluid Injection Direction on Enhanced Phase-Change Energy Storage in Vertical Shell-and-Tube System," Sustainability, MDPI, vol. 15(17), pages 1-21, August.
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