Effects of nanofluids containing graphene/graphene-oxide nanosheets on critical heat flux
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- Effects of nanofluids containing graphene/graphene-oxide nanosheets on critical heat flux
- Park, Sung Dae; Lee, Seung Won; Kang, Sarah; Bang, In Cheol; Kim, Ji Hyun; Shin, Hyeon Suk; Lee, Dong Wook; Lee, Dong Won
- Critical heat flux; Deposition layers; Nano-fluid; Nanofluids; Oxide nanosheets; Porous surface; Surface wettability; Thermal conduction; Thermal management
- Issue Date
- AMER INST PHYSICS
- APPLIED PHYSICS LETTERS, v.97, no.2, pp.1 - 3
- The superb thermal conduction property of graphene establishes graphene as an excellent material for thermal management. In this paper, we selected graphene/graphene oxide nanosheets as the additives in nanofluids. The authors interestingly found that the highly enhanced critical heat flux (CHF) in the nanofluids containing graphene/graphene-oxide nanosheets (GON) cannot be explained by both the improved surface wettability and the capillarity of the nanoparticles deposition layer. Here we highlights that the GON nanofluid can be exploited to maximize the CHF the most efficiently by building up a characteristically ordered porous surface structure due to its own self-assembly characteristic resulting in a geometrically changed critical instability wavelength.
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