Energy Storage Science and Technology ›› 2014, Vol. 3 ›› Issue (3): 179-190.doi: 10.3969/j.issn.2095-4239.2014.03.001

• Invited papers •     Next Articles

State-of-the-art of phase-change thermal storage at middle-low temperature

XU Zhiguo, ZHAO Changying, JI Yunan, ZHAO Yao   

  1. Key Laboratory of Power Machinery and Engineering of Ministry of Education,Shanghai Jiao Tong University,Shanghai 200240,China
  • Received:2014-04-20 Online:2014-05-01 Published:2014-05-01

Abstract: Phase-change thermal storage technology has been widely studied and applied because of its high heat storage density and constant temperature. Particularly in the case that energy supply is not continuous, its application is very extensive. As an effective method to resolve the time and space conflicts of energy supply, phase-change thermal storage system can significantly improve energy utilization efficiency. In this paper, state-of-the-art of phase change thermal storage at middle and low temperature includes the three aspects: Phase-change material selection, numerical simulation of the phase-change process, phase-change thermal storage device. Firstly, introducing species and cycling stability, thermal conductivity enhancement of the phase change material. Secondly, summarizing numerical simulation methods and theories. Thirdly, describing different devices of phase-change thermal storage. Finally, pointing out the research objectives and directions of phase-change thermal storage at middle-low temperature.

Key words: middle-low temperature, thermal storage, phase-change material, simulation method

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