4.7 Article

Joule Heating of Ionic Conductors Using Zero-Phase Frequency Alternating Current to Suppress Electrochemical Reactions

Journal

ENGINEERING
Volume 25, Issue -, Pages 138-143

Publisher

ELSEVIER
DOI: 10.1016/j.eng.2022.03.004

Keywords

Joule heating; Ionic conductors; Electrolytes; Zero-phase frequency; Electrochemical corrosion

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This paper reports on the Joule heating of ionic conductors without electrochemical reactions, achieved by using electricity with a zero-phase frequency to suppress electrolysis. Demonstrations with various ionic conductors, both liquids and solids, show highly efficient energy conversion without electrochemical reactions. This heating method is simple, direct, fast, clean, and uniform, and has great potential in numerous industrial and household applications.
It is well known that heat is generated when an electric current passes through an electrical conductor. While various applications in our daily lives and industries utilize the heating of electronic conductors, little attention has been paid to the potential of ionic conductors for heating purposes. This is because of the inevitable electrochemical reactions, which can result in unwanted electrolysis of conductors, corrosion of electrodes, and surface fouling. This paper reports the Joule heating of ionic conductors without electrochemical reactions. Electricity with a zero-phase frequency is employed to suppress the electrolysis of ionic conductors at high voltages. Demonstrations with various ionic conductors, both liquids and solids, show highly efficient energy conversion free of electrochemical reactions. This heating method is simple, direct, fast, clean, and uniform, and it has great potential in numerous industrial and household applications. (c) 2021 THE AUTHORS. Published by Elsevier LTD on behalf of Chinese Academy of Engineering and Higher Education Press Limited Company. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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