TY - JOUR
TI - Investigations on a novel composite phase change material comprising paraffin wax and CQD for thermal conductivity enhancement
AU - Janumala Emeema
AU - Govindarajan Murali
AU - Bomma Reddi Venkateswara Reddi
AU - Chinnasamy Sivakandhan
JN - Thermal Science
PY - 2023
VL - 27
IS - 6
SP - 4747
EP - 4755
PT - Article
AB - Thermal energy storage using phase change materials (PCM) has become crucial in combating the energy crisis and is leading to innovative approaches in energy storage management. As part of this study, novel composite PCM were prepared by dispersing carbon quantum dots (CQD) with weight percentages of 1%, 5%, 10%, 15%, and 20% in paraffin wax. The study aims to investigate thermal conductivity enhancement of these composite PCM and examine their applicability in thermal energy storage. Ultrasonication was utilized to prepare the composites. The SEM was employed to study surface morphology of micro-structures of the PCM. Thermal conductivity was determined using a heat flow meter and results revealed a remarkable increase. Maximum enhancement ratio of 97.38% was obtained for the 20 wt.% composite PCM.