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Experimental and Numerical Study of an Electrical Thermal Storage Device for Space Heating

Author

Listed:
  • Guizhi Xu

    (State Key Laboratory of Advanced Power Transmission Technology, Global Energy Interconnection Research Institute Co., Ltd., Changping District, Beijing 102211, China)

  • Xiao Hu

    (State Key Laboratory of Advanced Power Transmission Technology, Global Energy Interconnection Research Institute Co., Ltd., Changping District, Beijing 102211, China)

  • Zhirong Liao

    (Key Laboratory of Condition Monitoring and Control for Power Plant Equipment of MOE, School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China)

  • Chao Xu

    (Key Laboratory of Condition Monitoring and Control for Power Plant Equipment of MOE, School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China)

  • Cenyu Yang

    (State Key Laboratory of Advanced Power Transmission Technology, Global Energy Interconnection Research Institute Co., Ltd., Changping District, Beijing 102211, China)

  • Zhanfeng Deng

    (State Key Laboratory of Advanced Power Transmission Technology, Global Energy Interconnection Research Institute Co., Ltd., Changping District, Beijing 102211, China)

Abstract

An electrical thermal storage (ETS) device for space heating is designed in this study. The proposed device is charged by the off-peak electricity and releases its thermal energy to warm the space all day long. The natural convection occurring in the flow channel drives the flowing of air to be heated up and warm the space. The dynamic process of a fully charging/discharging cycle of the device is tested. Meanwhile, a three-dimensional model is developed to simulate the transient thermal behavior. It is found that the experimental and numerical results agree with each other which indicates the validation of the proposed numerical model. The results show that the temperatures of the bricks and the outlet air can be as high as 1002 K and 835 K, respectively. The natural convection occurring in the flow channel transfers 40.4% of the total electrical heating energy to the space for the charging process and 26.9% for the discharging process. Heat losses to the space through the adiabatic material shares 13.3% of the total heating energy for the charging process and 7.2% for the discharging process. Based on those findings, three methods are recommended to improve the device in the successive research.

Suggested Citation

  • Guizhi Xu & Xiao Hu & Zhirong Liao & Chao Xu & Cenyu Yang & Zhanfeng Deng, 2018. "Experimental and Numerical Study of an Electrical Thermal Storage Device for Space Heating," Energies, MDPI, vol. 11(9), pages 1-14, August.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:9:p:2180-:d:164793
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    References listed on IDEAS

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    1. Ioan Sarbu & Calin Sebarchievici, 2018. "A Comprehensive Review of Thermal Energy Storage," Sustainability, MDPI, vol. 10(1), pages 1-32, January.
    2. Arteconi, A. & Hewitt, N.J. & Polonara, F., 2012. "State of the art of thermal storage for demand-side management," Applied Energy, Elsevier, vol. 93(C), pages 371-389.
    3. Niu, Dong-xiao & Song, Zong-yun & Xiao, Xin-li, 2017. "Electric power substitution for coal in China: Status quo and SWOT analysis," Renewable and Sustainable Energy Reviews, Elsevier, vol. 70(C), pages 610-622.
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    Cited by:

    1. Xinyu Pan & Mengdi Yuan & Guizhi Xu & Xiao Hu & Zhirong Liao & Chao Xu, 2023. "Structure and Operation Optimization of a Form-Stable Carbonate/Ceramic-Based Electric Thermal Storage Device for Space Heating," Energies, MDPI, vol. 16(11), pages 1-18, June.
    2. Igor V. Miroshnichenko & Mikhail A. Sheremet & Abdulmajeed A. Mohamad, 2019. "The Influence of Surface Radiation on the Passive Cooling of a Heat-Generating Element," Energies, MDPI, vol. 12(6), pages 1-14, March.
    3. Huichao Ji & Junyou Yang & Haixin Wang & Kun Tian & Martin Onyeka Okoye & Jiawei Feng, 2019. "Electricity Consumption Prediction of Solid Electric Thermal Storage with a Cyber–Physical Approach," Energies, MDPI, vol. 12(24), pages 1-18, December.
    4. Aleksei Khimenko & Dmitry Tikhomirov & Stanislav Trunov & Aleksey Kuzmichev & Vadim Bolshev & Olga Shepovalova, 2022. "Electric Heating System with Thermal Storage Units and Ceiling Fans for Cattle-Breeding Farms," Agriculture, MDPI, vol. 12(11), pages 1-13, October.

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