Effect of Ultrasonic Irradiation on the Crystallization of Sodium Acetate Trihydrate Utilized as Heat Storage Material

Kiwamu Seo, Shunpei Suzuki, Takuya Kinoshita, Izumi Hirasawa

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    16 Citations (Scopus)


    The effect of ultrasonic irradiation on nucleation phenomena in the heat storage material CH3COONa·3H2O was investigated by measuring the nucleation probability and induction time. The experimental results show that the concentration of CH3COONa should be operated in the optimum range for CH3COONa·3H2O-selective crystallization. Furthermore, the nucleation probability increased and the induction time decreased with increasing energy input. Consequently, the optimum conditions of ultrasonic irradiation of CH3COONa·3H2O are 53wt-% CH3COONa, 3.0W of energy input, and ΔT = 10-68K.

    Original languageEnglish
    Pages (from-to)1013-1016
    Number of pages4
    JournalChemical Engineering and Technology
    Issue number6
    Publication statusPublished - 2012 Jun



    • Heat storage
    • Nucleation
    • Selective crystallization
    • Supercooled melt
    • Ultrasonic irradiation

    ASJC Scopus subject areas

    • Chemical Engineering(all)
    • Chemistry(all)
    • Industrial and Manufacturing Engineering

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