TY - JOUR
T1 - Enhanced Specific Heat of Molten Salt Nano-Eutectic Via Nanostructural Change
AU - Tiznobaik, Hani
AU - Pournorouz, Zahra
AU - Seo, Joohyun
AU - Mostafavi, Amirhossein
AU - Shin, Donghyun
N1 - Publisher Copyright:
© 2021 American Society of Mechanical Engineers (ASME). All rights reserved.
PY - 2021/5/1
Y1 - 2021/5/1
N2 - In this study, the specific heat of molten salt nano-eutectic (Li2CO3-K2CO3doped with SiO2nanoparticles) was theoretically and computationally investigated. The effective specific heat of a nano-eutectic can be significantly enhanced by the formation of needlelike nanostructures by salt eutectic. To investigate the effect of the formed nanostructure, its specific heat was theoretically calculated by a theoretical model. The mass fraction of the formed nanostructure was estimated by matlab. The theoretical prediction made a good agreement with the measured specific heat values from the literature with an error less than 3%. Additional verification of the proposed model was performed by a Molecular Dynamics simulation study. The simulated specific heat of pure molten salt eutectic made a good agreement with the literature value (1.6 kJ/kg °C with an error less than 1.7%). The simulated specific heat of nano-eutectic was 2.017 kJ/kg °C. The error between the theoretical prediction and the simulation is only 3.4% and the value made a good agreement with the experiment (1.9% max. error). The result shows that the enhanced specific heat of a nano-eutectic can be explained by the contribution of the formed nanostructures.
AB - In this study, the specific heat of molten salt nano-eutectic (Li2CO3-K2CO3doped with SiO2nanoparticles) was theoretically and computationally investigated. The effective specific heat of a nano-eutectic can be significantly enhanced by the formation of needlelike nanostructures by salt eutectic. To investigate the effect of the formed nanostructure, its specific heat was theoretically calculated by a theoretical model. The mass fraction of the formed nanostructure was estimated by matlab. The theoretical prediction made a good agreement with the measured specific heat values from the literature with an error less than 3%. Additional verification of the proposed model was performed by a Molecular Dynamics simulation study. The simulated specific heat of pure molten salt eutectic made a good agreement with the literature value (1.6 kJ/kg °C with an error less than 1.7%). The simulated specific heat of nano-eutectic was 2.017 kJ/kg °C. The error between the theoretical prediction and the simulation is only 3.4% and the value made a good agreement with the experiment (1.9% max. error). The result shows that the enhanced specific heat of a nano-eutectic can be explained by the contribution of the formed nanostructures.
KW - molecular dynamics simulation
KW - molten salt
KW - nano-eutectic
KW - nanoparticle
KW - specific heat
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U2 - 10.1115/1.4050173
DO - 10.1115/1.4050173
M3 - Article
AN - SCOPUS:85103208680
SN - 0022-1481
VL - 143
JO - Journal of Heat Transfer
JF - Journal of Heat Transfer
IS - 5
M1 - 054501
ER -