Thermal Storage and Release Properties of Aluminum Foam - Paraffin Composite Phase Change Materials

Abstract:

Aluminum foam-Paraffin Composite Phase Change Materials (APCPCMs) were fabricated by aluminum foam and paraffin, and the thermal storage and thermal release properties of the composites have been studied. The results are shown as follows. (1) When the volume ratio between APCPCM and water is 1:4, the time for the temperature changing of APCPCMs with aluminum foam porosity being 54.81%, 60.52%, 64.37% and 69.74%, from 24°C to 66°C, is 190s, 305s, 380s and 395s respectively. The thermal release time of these APCPCMs is 270s, 355s, 540s and 600s after being put into 24°C water, and resulting in a water temperature increase by 8.2°C, 8.7°C, 9.4°C and 10.1°Crespectively. (2) APCPCM with aluminum foam porosity 60.52% is compared with aluminum foam and paraffin, the thermal storage time of these three kinds of materials is 305s, 60s, 870s, and the thermal release time is 355s, 30s, 1470s respectively. (3) The equivalent thermal conductivity coefficient of the APCPCMs with aluminum foam porosity ranging form 69.74% to 54.81% is between 61.16 W•m-1•k-1 to 91.4W•m-1•k-1.

• Periodical: Advanced Materials Research (Volume 668)
• Pages: 42-47
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.668.42
• Online since: March 2013
• Authors: Xiao Xu Luo, Xiao Qing Zuo, Ming Wei Zhao
• Keywords: Aluminum Foam, APCPCM, Paraffin, Release Properties, Thermal Storage Properties

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