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LAPSE:2018.1090
Published Article
LAPSE:2018.1090
Numerical Study of Solidification in a Plate Heat Exchange Device with a Zigzag Configuration Containing Multiple Phase-Change-Materials
Peilun Wang, Dacheng Li, Yun Huang, Xingang Zheng, Yi Wang, Zhijian Peng, Yulong Ding
November 28, 2018
Latent heat thermal energy storage (TES) plays an important role in the advocation of TES in contrast to sensible energy storage because of the large storage energy densities per unit mass/volume possible at a nearly constant thermal energy. In the current study, a heat exchange device with a zigzag configuration containing multiple phase-change-materials (m-PCMs) was considered, and an experimental system was built to validate the model for a single PCM. A two-dimensional numerical model was developed using the ANSYS Fluent 14.0 software program. The energy fractions method was put forward to calculate the average Ste number and the influence of Re and Ste numbers on the discharge process were studied. The influence of phase change temperature among m-PCMs on the solidification process has also been studied. A new boundary condition was defined to determine the combined effect of the Re and Ste numbers on the discharging process. The modelling results show that for a given input power, the Ste (or Re) number has a significant impact on the discharging process; however, the period value of inlet velocity has almost no impact on it. Besides, the zigzag plate with m-PCMs has a good impact on the temperature shock as “filter action” in the discharging process.
Keywords
heat exchange, multiple phase-change-materials (m-PCMs), numerical modelling, Process Intensification, solidification, zigzag configuration
Suggested Citation
Wang P, Li D, Huang Y, Zheng X, Wang Y, Peng Z, Ding Y. Numerical Study of Solidification in a Plate Heat Exchange Device with a Zigzag Configuration Containing Multiple Phase-Change-Materials. (2018). LAPSE:2018.1090
Author Affiliations
Wang P: State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; School of Engineering and Technology, China University of Geosciences, Beijing 100083, China
Li D: State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
Huang Y: State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
Zheng X: State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
Wang Y: State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
Peng Z: School of Engineering and Technology, China University of Geosciences, Beijing 100083, China
Ding Y: Birmingham Centre for Thermal Energy Storage, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
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Journal Name
Energies
Volume
9
Issue
6
Article Number
E394
Year
2016
Publication Date
2016-05-24
Published Version
ISSN
1996-1073
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PII: en9060394, Publication Type: Journal Article
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LAPSE:2018.1090
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doi:10.3390/en9060394
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Nov 28, 2018
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Calvin Tsay
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