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Synthetic and physical characterization of phase change materials microencapsulated by complex coacervation for thermal energy storage applications
Author(s) -
Malekipirbazari Milad,
Sadrameli S. M.,
Dorkoosh Farid,
Sharifi Hamed
Publication year - 2014
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.3153
Subject(s) - coacervate , differential scanning calorimetry , materials science , phase change material , gelatin , enthalpy , thermal energy storage , phase change , chemical engineering , thermal conductivity , gum arabic , enthalpy of fusion , characterization (materials science) , melting point , thermodynamics , nanotechnology , composite material , chemistry , organic chemistry , physics , engineering
SUMMARY This paper presents a comprehensive study of encapsulated phase change materials (PCMs). In order to investigate some synthesis parameters, microencapsulated paraffin with gelatin/gum Arabic wall system was prepared by the complex coacervation method and the performance of these microcapsules was evaluated by optical microscopy and differential scanning calorimetry. Further investigations were carried out on the impact of physical parameters on the melting time by studying the constrained melting transformation of an encapsulated PCM in a spherical shell subjected to a constant temperature media. Results indicate successful production of PCM microcapsules with high melting enthalpy (116 kJ/kg), and the effects of diameter and thermal conductivity on melting time of PCMs were demonstrated. Copyright © 2014 John Wiley & Sons, Ltd.