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A Preliminary Study for The Effect of DC voltage on the Nucleation Process of PCM CaCl2.6H2O
Hani Kurniawati (a*), Ahmad Swandi (a), Fahrizal Afrianto (a), Annisa Rahman (a), Radhiah Anggraini (a), Risky Afandi Putri (a), Daniel Kurnia (a), Inge Magdalena Sutjahja (a)

(a) Departemen Fisika Fakultas Matematika dan Ilmu Pengetahuan Alam, Institut Teknologi Bandung,
Jl. Ganesha no. 10 Bandung, Indonesia, 40132
*hanikurniawati[at]students.itb.ac.id
*inge[at]fi.itb.ac.id


Abstract

This paper report the results of experimental study for electrofreezing of a salt hydrate-based phase change material CaCl2.6H2O to reduce the supercooling effect.The experiment was performed by using DC voltage and 0.3 mm diameter of copper electrode. The time-dependent temperature is was measured using thermocouple data logger which is connected to a computer. The parameter variation consist of the magnitude of applied electric field and interval time for field application. It turns out that the minimum amplitude of applied field is about 700 V, and the supercooling degree tend to decrease with the increase of applied field. The supercooling degree also changed with the interval time for the applied field, although its variation still need to be further clarified. From this experiment, it can be concluded that DC voltage affects the supercooling degree of CaCl2.6H2O and help to create the nucleation process.

Keywords: Electrofreezing, Solidification, Salt Hydrate CaCl2.6H2O, Supercooling

Topic: Functional Materials

Link: https://ifory.id/abstract/2a3QKuFYzHc4

Conference: The 7th International Conference on Advanced Materials Science and Technology (ICAMST 2019)

Plain Format | Corresponding Author (Hani Kurniawati)

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