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Heat Dissipation of Open-Cell-Type Aluminum Foams Manufactured by Replication-Casting Process.
- Source :
- Metals (2075-4701); Feb2024, Vol. 14 Issue 2, p206, 17p
- Publication Year :
- 2024
-
Abstract
- Open-cell-type aluminum foam demonstrates excellent heat dissipation owing to interconnected pores. In this study, open-cell-type aluminum foams with various pore sizes and porosities were fabricated using the replication-casting process, which is a relatively simple process. The porosity of the manufactured foams ranged from approximately 55% to 62%. To assess the heat dissipation of the manufactured foams, an air-cooling system was designed. The device could pass a controlled amount of air through the connected pores, simultaneously measuring pressure drop ∆ P and temperature changes. It was confirmed that the open-cell-type aluminum foams exhibited a very high cooling rate in the initial cooling phase, and the thermal behavior is influenced by structural characteristics. At a porosity of 62%, the initial maximum cooling rate was measured to be 1.41 ℃ /s for a pore size of 0.7~1.0 mm, and it was observed to significantly increase to 3.82 ℃ /s for a pore size of 2.8~3.4 mm. Furthermore, for the same pore size, an increase in porosity resulted in an increase in the initial cooling rate. Lager pore sizes and higher porosities led to lower pressure drop ∆ P and improved airflow, enhancing the cooling efficiency of open-cell-type aluminum foams. [ABSTRACT FROM AUTHOR]
- Subjects :
- ALUMINUM foam
MANUFACTURING processes
PRESSURE drop (Fluid dynamics)
POROSITY
FOAM
Subjects
Details
- Language :
- English
- ISSN :
- 20754701
- Volume :
- 14
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Metals (2075-4701)
- Publication Type :
- Academic Journal
- Accession number :
- 175653014
- Full Text :
- https://doi.org/10.3390/met14020206