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Enhancing performance in heat storage unit and packed-bed system: Novel capsule designs inspired by drop structure

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  • Chen, Xudong
  • Zhang, Jingyu
  • Zou, Huichuan
  • Zhang, Guoliang
  • Zhang, Aoyu
  • Dong, Yan
  • Liang, Huaxu
  • Wang, Fuqiang

Abstract

Packed-bed system offers a promising solution to the uneven spatiotemporal variability of solar energy. However, challenges persist in its development, including excessive disparity in localized temperature, sluggish heat storage rate, and suboptimal efficiency. In this context, the drop structure phase change material capsule concept was proposed to enhance thermal energy storage performance, drawing inspiration from the streamlined structure such as tuna or submarine. This research delves into the comprehensive performance of drop, sphere, and shuttle structure capsules, encompassing experimental investigation and simulation analysis of the external convection, internal melting, and charging processes. Additionally, an experimental visualization setup was devised to monitor the melting process. The results indicated that replacing conventional sphere structure capsule with the drop structure capsule reduces the drag of external flow by 10.12 %. The complete melting time of the individual capsule and the packed-bed system was shortened by 5.53 % and 10.94 %, respectively. Furthermore, the standard deviations of the longitudinal and radial average temperatures decreased by 24.12 % and 29.97 %, respectively.

Suggested Citation

  • Chen, Xudong & Zhang, Jingyu & Zou, Huichuan & Zhang, Guoliang & Zhang, Aoyu & Dong, Yan & Liang, Huaxu & Wang, Fuqiang, 2024. "Enhancing performance in heat storage unit and packed-bed system: Novel capsule designs inspired by drop structure," Energy, Elsevier, vol. 313(C).
    • Handle: RePEc:eee:energy:v:313:y:2024:i:c:s0360544224038258
    DOI: 10.1016/j.energy.2024.134047
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    1. Gilson Dranka, Géremi & Ferreira, Paula & Vaz, A. Ismael F., 2022. "Co-benefits between energy efficiency and demand-response on renewable-based energy systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 169(C).
    2. Yan, Zhongjun & Zhu, Yuexiang & Liu, Lifang & Yu, Zhun (Jerry) & Li, Shuisheng & Zhang, Guoqiang, 2023. "Performance enhancement of cylindrical latent heat storage units in hot water tanks via wavy design," Renewable Energy, Elsevier, vol. 218(C).
    3. Hu, Nan & Li, Zi-Rui & Xu, Zhe-Wen & Fan, Li-Wu, 2022. "Rapid charging for latent heat thermal energy storage: A state-of-the-art review of close-contact melting," Renewable and Sustainable Energy Reviews, Elsevier, vol. 155(C).
    4. Yao, Haichen & Liu, Xianglei & Li, Jiawei & Luo, Qingyang & Tian, Yang & Xuan, Yimin, 2023. "Chloroplast-granum inspired phase change capsules accelerate energy storage of packed-bed thermal energy storage system," Energy, Elsevier, vol. 284(C).
    5. Kumar, G. Senthil & Nagarajan, D. & Chidambaram, L.A. & Kumaresan, V. & Ding, Y. & Velraj, R., 2016. "Role of PCM addition on stratification behaviour in a thermal storage tank – An experimental study," Energy, Elsevier, vol. 115(P1), pages 1168-1178.
    6. Moreno, Diana & Nielsen, Steffen & Sorknæs, Peter & Lund, Henrik & Thellufsen, Jakob Zinck & Mathiesen, Brian Vad, 2024. "Exploring the location and use of baseload district heating supply. What can current heat sources tell us about future opportunities?," Energy, Elsevier, vol. 288(C).
    7. Chen, Xudong & Li, Chunzhe & Yang, Zhenning & Dong, Yan & Wang, Fuqiang & Cheng, Ziming & Yang, Chun, 2024. "Golf-ball-inspired phase change material capsule: Experimental and numerical simulation analysis of flow characteristics and thermal performance," Energy, Elsevier, vol. 293(C).
    8. Shao, Y.L. & Soh, K.Y. & Islam, M.R. & Chua, K.J., 2023. "Thermal, exergy and economic analysis of a cascaded packed-bed tank with multiple phase change materials for district cooling system," Energy, Elsevier, vol. 268(C).
    9. Xia, L. & Zhang, P. & Wang, R.Z., 2010. "Numerical heat transfer analysis of the packed bed latent heat storage system based on an effective packed bed model," Energy, Elsevier, vol. 35(5), pages 2022-2032.
    10. Tian, Yang & Liu, Xianglei & Zheng, Hangbin & Xu, Qiao & Zhu, Zhonghui & Luo, Qinyang & Song, Chao & Gao, Ke & Yao, Haichen & Dang, Chunzhuo & Xuan, Yimin, 2022. "Artificial mitochondrion for fast latent heat storage: Experimental study and lattice Boltzmann simulation," Energy, Elsevier, vol. 245(C).
    11. Pu, Jihong & Shen, Chao & Yang, Shaoxin & Zhang, Chunxiao & Chwieduk, Dorota & Kalogirou, Soteris A., 2022. "Feasibility investigation on using silver nanorods in energy saving windows for light/heat decoupling," Energy, Elsevier, vol. 245(C).
    12. Dong, Yan & Wang, Fuqiang & Zhang, Yaqi & Shi, Xuhang & Zhang, Aoyu & Shuai, Yong, 2022. "Experimental and numerical study on flow characteristic and thermal performance of macro-capsules phase change material with biomimetic oval structure," Energy, Elsevier, vol. 238(PB).
    13. Shi, Xuhang & Li, Chunzhe & Yang, Zhenning & Xu, Jie & Song, Jintao & Wang, Fuqiang & Shuai, Yong & Zhang, Wenjing, 2024. "Egg-tray-inspired concave foam structure on pore-scale space radiation regulation for enhancing photo-thermal-chemical synergistic conversion," Energy, Elsevier, vol. 297(C).
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