Choudhary, Shyam K and Bhadu, Manish Kumar and Guin, Akshya Kumar and Pramanick, A K and Ghosh, Nabarun and Rout, Tapan Kumar and Das, Sumitesh (2013) Boiling Study of Nanofluid on Graphene Coated Substrate. Journal of Nanofluids, 2 . pp. 1-4.
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A comparative study is done to understand the effect of variation in surface energy of substrates on boiling and dry-out characteristics of nanofluid. Droplet of TiO2 nanofluid on glass substrate shows strong pinning along the droplet perimeter. As the droplet evaporates, boundary of nanofluid droplet recedes slowly towards the center leaving a ring-shaped stain of concentrated nanoparticles. Surface energy of glass substrate is modified by graphene coating, confirmed by increase in contact angle. While boiling of nanofluid on graphene coated glass substrate shows an almost uniform dry-out pattern. Reduced wettability of nanofluid droplet on graphene coated glass substrate is responsible for this behavior.
|Uncontrolled Keywords:||Nanofluid, Boiling, Wetting, Heat Transfer, Graphene, Nanoparticle|
|Divisions:||Material Science and Technology|
|Deposited By:||Dr. A.K. Pramanick|
|Deposited On:||06 Aug 2013 12:52|
|Last Modified:||06 Aug 2013 12:52|
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