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Superior Latent Heat Eutectic Salt Na2CO3-Li2CO3-LiF for Thermal Energy Storage: Preparation and Performance Investigation

  • Special Column: Recent Advances in PCMs as Thermal Energy Storage in Energy Systems
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Abstract

In this paper, a novel ternary eutectic salt Na2CO3-Li2CO3-LiF was designed and investigated for concentrated solar power (CSP). The FactSage software was used to predict the composition and eutectic point of Na2CO3-Li2CO3-LiF. The microstructure, thermophysical properties, and thermal stability of eutectic salts were experimentally measured using various analytical methods. With a mass ratio of 57%:32%:11%, the eutectic salt exhibited excellent thermal storage properties with a fusion enthalpy of 413 J/g and a melting point of 426.8°C. The excellent thermal stability of the eutectic salt was reflected by a weight loss of only 0.8% at 600°C.

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Acknowledgments

JIN Yi would like to thank the funding support from the National Key Research and Development Plan of China (2018YFA0702300). TAN Linghua would like to thank National Natural Science Foundation of China (NSFC 2151802156), Natural Science Foundation of Jiangsu Province (BK20181302) and the Fundamental Research Funds for the Central Universities (30920041107). DING Yulong would like to thank UK Engineering and Physical Sciences Research Council (EPSRC) for partial support to this project (Grants EP/T022981/1, EP/S032622/1 and EP/P003435/1), as well as the British Council (2020-RLWK12-10478 and 2019-RLWK11-10724).

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Author notes

  1. LI Weiwei and MIAO Qi contributed equally to this work.

Authors and Affiliations

  1. School of Chemistry and Chemical Engineering, Nanjing University of Science & Technology, Nanjing, 210094, China

    Weiwei Li, Qi Miao, Yelong Zhang, Hongliang Ding, Sa Yang, Yuan Lai & Linghua Tan

  2. National Special Superfine Powder Engineering Research Center, Nanjing University of Science and Technology, Nanjing, 210094, China

    Weiwei Li, Qi Miao, Yelong Zhang, Hongliang Ding, Sa Yang & Linghua Tan

  3. Nanjing Jinhe Energy Material Co., Ltd, Nanjing, 210047, China

    Weiwei Li, Qi Miao, Yelong Zhang, Hongliang Ding & Yi Jin

  4. School of Chemical Engineering, University of Birmingham, Birmingham, B15 2TT, UK

    Yulong Ding

  5. School of Energy & Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China

    Daili Feng & Yulong Ding

Authors
  1. Weiwei Li
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  2. Qi Miao
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  3. Yelong Zhang
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  4. Hongliang Ding
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  5. Sa Yang
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  6. Yuan Lai
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  7. Daili Feng
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  8. Yulong Ding
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  9. Yi Jin
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  10. Linghua Tan
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Corresponding authors

Correspondence to Yi Jin or Linghua Tan.

Ethics declarations

DING Yulong is an editorial board member for Journal of Thermal Science and was not involved in the editorial review or the decision to publish this article. All authors declare that there are no competing interests.

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Li, W., Miao, Q., Zhang, Y. et al. Superior Latent Heat Eutectic Salt Na2CO3-Li2CO3-LiF for Thermal Energy Storage: Preparation and Performance Investigation. J. Therm. Sci. 33, 501–508 (2024). https://doi.org/10.1007/s11630-024-1919-y

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  • DOI: https://doi.org/10.1007/s11630-024-1919-y

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