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Effect of Ultrasonic Irradiation on the Crystallization of Sodium Acetate Trihydrate Utilized as Heat Storage Material
Author(s) -
Seo K.,
Suzuki S.,
Kinoshita T.,
Hirasawa I.
Publication year - 2012
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201100680
Subject(s) - nucleation , crystallization , irradiation , ultrasonic sensor , materials science , sodium , thermodynamics , physics , metallurgy , nuclear physics , acoustics
The effect of ultrasonic irradiation on nucleation phenomena in the heat storage material CH 3 COONa · 3H 2 O was investigated by measuring the nucleation probability and induction time. The experimental results show that the concentration of CH 3 COONa should be operated in the optimum range for CH 3 COONa · 3H 2 O‐selective crystallization. Furthermore, the nucleation probability increased and the induction time decreased with increasing energy input. Consequently, the optimum conditions of ultrasonic irradiation of CH 3 COONa · 3H 2 O are 53 wt‐% CH 3 COONa, 3.0 W of energy input, and Δ T = 10–68 K.