Phase change heat transfer in a vertical metal foam-phase change material thermal energy storage heat dissipator
- Publisher:
- Elsevier
- Publication Type:
- Journal Article
- Citation:
- Journal of Energy Storage, 2023, 66, pp. 107370
- Issue Date:
- 2023-08-30
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| Filename | Description | Size | |||
|---|---|---|---|---|---|
| Manuscript_Revised_Clean-Accepted Version V1.pdf | Accepted version | 9.43 MB |
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A metallic foam heat dissipator for cooling electronic components was addressed. A heat dissipator is a partitioned aluminum container loaded along with aluminum metallic foam and saturated with paraffin wax. A heat flux at a surface contains a basic uniform flux and the step transient raise, which should be managed by a heat dissipator and a Phase Change Material (PCM). The regulating equations for a melting/solidification transfer of heat & momentum transport in a heat dissipator were instituted into a structure of partial differential equations. Then, the vital monitoring equations were converted into a general dimensionless type and solved by the Finite Element Method. A mesh adjustment technique & automated time-step control was employed to control the accuracy & convergence of the result automatically. An adaptation technique controls the mesh resolution at the melting/solidification interface. The dimensionless temperature of fusion is a vital factor in the control of the surface temperature and heat dissipator efficiency. Considering a fixed amount of material for walls, a heat dissipator with thick sidewalls and thin top and bottom walls results in slightly better thermal performance. Using a PCM heat sink could reduce the heated surface temperature by >175 % during the pulse load.
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