The role of chemical additives to the phase change process of CaCl2.6H2O to optimize its performance as latent heat energy storage system

I. M. Sutjahja, S. A.U. Rahayu, Nia Kurniati, Ivyalentine D. Pallitine, D. Kurnia

Research output: Contribution to journalConference articlepeer-review

11 Citations (Scopus)

Abstract

CaCl2.6H2O is one of salt hydrate based phase change material (PCM) which is suitable for room air-temperature stabilizer because it has the melting temperature just above the human comfort zone temperature (Tm ∼ 29 oC) and a relatively large heat entalphy (AH ∼ 190 kJ/kg). This paper reports the role of the type of chemical additives to PCM CaCl2.6H2O to the phase change process throughout the solidification process or heat release in order to optimize its performance as latent heat energy storage system. In this research we used several kinds of chemical additive, namely SrCl2.6H2O (1.0 wt%), BaCO3 (0.5 wt%), and K2CO3 (0.5 wt%). In terms of its latent time for phase change process the order the effectiveness of those chemical additives are reduced from SrCl2.6H2O, BaCO3and K2CO3. We found that this is also related to their role in suppression supercooling and phase separation effects which occurs during crystallization process of CaCl2.6H2O.

Original languageEnglish
Article number012064
JournalJournal of Physics: Conference Series
Volume739
Issue number1
DOIs
Publication statusPublished - 23 Sep 2016
Event6th Asian Physics Symposium 2015, APS 2015 - Bandung, Indonesia
Duration: 19 Aug 201520 Aug 2015

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