Personalized Cooling System Using Phase Change Materials

Abstract:

The most widely used personal protective system against heat stress is cooling vest that contains phase change material (PCM) for thermal energy storage. PCMs have the property of absorbing/releasing heat when they change their phase at their melting point. If the PCM has greater heat of fusion, more heat is absorbed; furthermore, good thermal conductivity assists in efficient removal of heat. In this work different PCMs are explored for use in personalized cooling vest. Hexadecane is finally selected to be used as a PCM having a melting point of 18-20 °C (which lies in the human thermal comfort) and heat of fusion of 241 kJ/kg. Carbon nanotubes have excellent capability of increasing thermal conductivity of a material. Carbon nanotubes were added in hexadecane, and latent heat of fusion of the mixture increased up to 262.6 kJ/kg.

• Periodical: Key Engineering Materials (Volume 875)
• Pages: 184-192
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.875.184
• Online since: February 2021
• Authors: Kashif Ali, Rizwan Mehmood Gul*, Salman Noshear Arshad, Muhammad Ali Kamran
• Keywords: Carbon Nanotubes, Hexadecane, Latent Heat of Fusion, Personalized Cooling System, Phase Change Materials

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