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Effect of Al2o3 dispersion on enthalpy and thermal stability of ternary nitrate eutectic salt

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dc.contributor.author Yathin Krishna
dc.contributor.author R. Saidur
dc.contributor.author M. Faizal
dc.contributor.author Navid Aslfattahi
dc.contributor.author K.C. Ng
dc.contributor.author A. Arifutzzaman
dc.contributor.author Shashikantha Karinka
dc.date.accessioned 2025-12-02T08:12:06Z
dc.date.available 2025-12-02T08:12:06Z
dc.date.issued 2020-05
dc.description.abstract The system efficiency of concentrated solar power (CSP) was determined by using the working temperature of heat transfer fluid (HTF). Initially, organic HTFs were used for this purpose, which had a maximum operating temperature of 400 °C. However, it exhibits poor thermal storage property. The use of inorganic salts which are stable at high temperature (500~600 °C) can significantly increase the system efficiency. These salts can be used as energy storage materials as well. In this paper, nanocomposite comprising of ternary nitrate eutectic molten salt having pre-defined mass dispersed with Al2O3 nanoparticles of 0.1, 0.3, 0.5, and 1 wt.% was tested. The enthalpy and melting point measurements were performed using differential scanning calorimetry (DSC). Thermogravimetric analysis (TGA) was conducted to study the thermal stability of the eutectic salt and mass loss measurement at a temperature higher than 600 ⁰C. The homogeneity and microstructure of synthesized molten salt were examined using scanning electron microscopy (SEM) imaging. The results showed that the melting point of eutectic salt was reduced by 23% with the addition of 1 wt.% of Al2O3 nanoparticles. By increasing the doping of Al2O3, the enthalpy of the mixture increased, indicating that the eutectic mixture could be used for thermal energy storage. SEM imaging analysis revealed the uniform dispersion of Al2O3 nanoparticles in the pure eutectic mixture. Based on the DSC and TGA results, both enthalpy and thermal stability of the molten salt have increased by the addition of Al2O3 nanoparticle, making it a potential candidate salt for CSP applications.
dc.identifier.uri https://ijneam.unimap.edu.my/
dc.identifier.uri https://ijneam.unimap.edu.my/images/PDF/IJNEAM%20SPECIAL%20ISSUE%20MEI%202020/Vol_13_SI_Mei2020_75-84.pdf
dc.identifier.uri https://hdl.handle.net/20.500.14170/15404
dc.language.iso en
dc.publisher Universiti Malaysia Perlis (UniMAP)
dc.relation.ispartof International Journal of Nanoelectronics and Materials (IJNeaM)
dc.relation.issn 1985-5761
dc.subject Molten Salts
dc.subject Thermal Energy Storage
dc.subject Heat Transfer Fluid
dc.subject Concentrated Solar Power
dc.title Effect of Al2o3 dispersion on enthalpy and thermal stability of ternary nitrate eutectic salt
dc.type Resource Types::text::journal::journal article
dspace.entity.type Publication
oaire.citation.endPage 84
oaire.citation.issue SI ISSTE 2019
oaire.citation.startPage 75
oaire.citation.volume 13
oairecerif.author.affiliation Taylors University
oairecerif.author.affiliation Sunway University
oairecerif.author.affiliation Taylors University
oairecerif.author.affiliation Universiti Malaya
oairecerif.author.affiliation Taylors University
oairecerif.author.affiliation Sunway University
oairecerif.author.affiliation NMAM Institute of Technology
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