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Solidification analysis of a single particle with encapsulated phase change materials
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Yang, Jia and Zhao, Changying (2013) Solidification analysis of a single particle with encapsulated phase change materials. Applied Thermal Engineering, Volume 51 (Number 1-2). pp. 338-346. doi:10.1016/j.applthermaleng.2012.09.020 ISSN 1359-4311.
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Official URL: http://dx.doi.org/10.1016/j.applthermaleng.2012.09...
Abstract
The melting or solidification behavior of a single particle with encapsulated phase change material (PCM) is essential in analyzing the heat transfer effect of encapsulated PCM suspension slurries, particularly in mini-channels or high flow speed applications. Accordingly, the heat diffusion equation of a sphere with a liquid–solid moving interface model is used to analyze the solidification of PCM within a single encapsulated particle. The nonlinearities associated with a moving boundary problem are simplified via the transformation of dimensionless variables of equations. A technique which combines Explicit Euler method and Implicit Euler method in finite difference scheme is thus developed to solve the Stefan problem. The result is compared with an iterative analytical series solution and a good agreement is obtained. The evolution of solidification and the moving front surface are predicted for different size particles with core paraffin encapsulated, and the solidified volume fraction as a function of time is also determined.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
| Journal or Publication Title: | Applied Thermal Engineering | ||||
| Publisher: | Pergamon | ||||
| ISSN: | 1359-4311 | ||||
| Official Date: | 2013 | ||||
| Dates: |
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| Volume: | Volume 51 | ||||
| Number: | Number 1-2 | ||||
| Page Range: | pp. 338-346 | ||||
| DOI: | 10.1016/j.applthermaleng.2012.09.020 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access |
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