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    Microwave irradiation based non-chemical method to manipulate surface tension of nanofluids

    Access Status
    Fulltext not available
    Authors
    Saptoro, Agus
    Kanazawa, Y.
    Asada, M.
    Asakuma, Y.
    Phan, C.
    Date
    2016
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Saptoro, A. and Kanazawa, Y. and Asada, M. and Asakuma, Y. and Phan, C. 2016. Microwave irradiation based non-chemical method to manipulate surface tension of nanofluids. Experimental Thermal and Fluid Science. 72: pp. 228-234.
    Source Title
    Experimental Thermal and Fluid Science
    DOI
    10.1016/j.expthermflusci.2015.11.015
    ISSN
    0894-1777
    School
    Curtin Sarawak
    URI
    http://hdl.handle.net/20.500.11937/27550
    Collection
    • Curtin Research Publications
    Abstract

    Manipulation of the surface tension is one of the key pathways to enhance heat and mass transfer performances of nanofluids in thermal systems. Current practices and existing literature on the surface tension reduction indicate that surfactant is usually employed as a chemical-additive to manipulate surface tension. This study, on the other hand, aims to explore a physical method to manipulate the surface tension of nanofluids based on microwave irradiation. This paper, therefore, is the first publication to report surface tension behaviors of nanofluids during and after microwave irradiation. Experimental results show that after microwave treatment, lower surface tensions were observed for both TiO2 and Fe2O3 based nanofluids for an extended period of time, even though the temperature has returned to its initial condition. These preliminary findings suggest that microwave irradiation treatment has the potential to be a non-chemical method to manipulate surface tension of nanofluids.

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