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Title: Microencapsulation of a eutectic PCM using in situ polymerization technique for thermal energy storage
Authors: Srinivasaraonaik B.
Singh L.P.
Tyagi I.
Rawat A.
Sinha S.
Published in: International Journal of Energy Research
Abstract: In the present work, microencapsulated phase change material (M-PCM) has been synthesized with eutectic mixture (75% SA + 25% CA) as core and melamine formaldehyde (MF) as shell using in situ polymerization. Advanced instrumental techniques like field emission scanning electron microscopy (FE-SEM), Fourier-transform infrared spectroscopy (FT-IR), particle size analyzer (PSA), thermogravimetric/differential thermal analysis (TG/DTA), differential scanning calorimetry (DSC), and thermal conductivity analyzer (TCi) were used to characterize the synthesized M-PCM, and impact of effective parameters like pH and agitator speed on the encapsulation process was also elucidated. Results obtained reveal that at the optimized pH (3.2) and agitator speed (1500 rpm) M-PCM possess smooth surface morphology, spherical in shape with particle size of 10.41 μm. Based on FT-IR analysis, it was observed that the synthesized M-PCM was uniformly encapsulated by MF resin with eutectic mixture in the core. The encapsulation process results in the improvement of the thermal stability of eutectic mixture, it increases from 202.5 to 212.3°C, and the encapsulation efficiency of the M-PCM is found to be 85.3%. The melting point and latent heat of fusion of M-PCM were found to be 34.5°C and 103.9 kJ/kg, respectively.
Citation: International Journal of Energy Research(2020), 44(5): 3854-3864
Issue Date: 2020
Publisher: John Wiley and Sons Ltd
Keywords: eutectic mixture
in situ polymerization
thermal energy storage
ISSN: 0363907X
Author Scopus IDs: 57210597314
Author Affiliations: Srinivasaraonaik, B., Environmental Science and Technology Group, CSIR-Central Building Research Institute, Roorkee, India
Singh, L.P., Environmental Science and Technology Group, CSIR-Central Building Research Institute, Roorkee, India
Tyagi, I., Env
Corresponding Author: Srinivasaraonaik, B.; Environmental Science and Technology Group, India; email:
Appears in Collections:Journal Publications [CH]

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