Effects of nanofluids containing graphene/graphene-oxide nanosheets on critical heat flux.

Autor: Sung Dae Park, Seung Won Lee, Kang, Sarah, In Cheol Bang, Ji Hyun Kim, Hyeon Suk Shin, Dong Wook Lee, Dong Won Lee
Předmět:
Zdroj: Applied Physics Letters; 7/12/2010, Vol. 97 Issue 2, p023103, 3p, 1 Color Photograph, 1 Black and White Photograph, 1 Diagram, 1 Graph
Abstrakt: 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. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index