Contact
    Start Publications Augmentation of nucleate boiling heat transfer and critical ...
    ←  Publication Finder
    Attension

    Augmentation of nucleate boiling heat transfer and critical heat flux using nanoparticle thin-film coatings

    Year: 2010

    Journal: International Journal of Heat and Mass Transfer Volume, 53, Issues 1-3, 15 January 2010, Pages 58-67, 20111221

    Authors: Eric Forrest a , Erik Williamson b , Jacopo Buongiorno a , Lin-Wen Hu c, * , Michael Rubner b , Robert Cohen d

    Organizations: a Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, USA, b Department of Materials Science and Engineering, Massachusetts Institute of Technology, USA, c Nuclear Reactor Laboratory, Massachusetts Institute of Technology, USA, d Department of Chemical Engineering, Massachusetts Institute of Technology, USA

    Nanoparticle thin-film coatings applied to boiling surfaces using a layer-by-layer (LbL) assembly method demonstrated significant enhancement in the pool boiling critical heat flux (CHF) and nucleate boiling heat transfer coefficient. Up to 100% enhancement of the critical heat flux and over 100% enhancement of the heat transfer coefficient were observed for pool boiling of nickel wires coated with different thin-films of silica nanoparticles. Surface characterization revealed that the surface wettability changed drastically with the application of these coatings, while causing virtually no change in the surface roughness. It is concluded that the nanoporous structure coupled with the chemical constituency of these coatings leads to the enhanced boiling behavior.