Effect of atmospheric humidity on electrical conductivity of oil and implications in electrostatic atomization

A. Sankaran, C. Staszel, D. Belknap, A. L. Yarin, F. Mashayek

    Research output: Contribution to journalArticlepeer-review

    17 Citations (Scopus)

    Abstract

    In this work, the effect of the atmospheric humidity on the electrical conductivity of oil as well as its implications in the case of electrostatic atomizers are studied. It was observed that the electrical current through oil increased by at least two orders of magnitude when the relative humidity changed from ∼10% to ∼85%. A comparison of these results is made with the available model for the electrical conductivity of organic liquids. Additional experiments with oil previously subjected to elevated relative humidity were conducted to evaluate its performance in electrostatic atomizer. No improvement of electrostatic atomization was detected, rather a detrimental effect to the steady operation was introduced.

    Original languageEnglish
    Pages (from-to)283-292
    Number of pages10
    JournalFuel
    Volume253
    DOIs
    Publication statusPublished - 2019 Oct 1

    Bibliographical note

    Funding Information:
    This work is supported by National Science Foundation (NSF) GOALI Grant CBET-1505276 .

    Publisher Copyright:
    © 2019 Elsevier Ltd

    Keywords

    • Electrical conductivity
    • Electrostatic atomization
    • Organic oils

    ASJC Scopus subject areas

    • General Chemical Engineering
    • Fuel Technology
    • Energy Engineering and Power Technology
    • Organic Chemistry

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