Homogeneous molten salt formulations as thermal energy storage media and heat transfer fluid
Title
Homogeneous molten salt formulations as thermal energy storage media and heat transfer fluid
Subject
Viscosity
Heat transfer
Mixtures
Corrosion rate
Thermal energy
Heat storage
Specific heat
Thermodynamic stability
Sodium compounds
Lithium compounds
Melting point
Potash
Calcium compounds
Fused salts
Potassium Nitrate
Description
Homogeneous ternary and quaternary molten nitrate salts with low melting points (110 C) with enhanced thermo-physical properties were synthesized for thermal energy storage media and heat transfer fluids. The ternary and quaternary molten salts were synthesized by varying the contents of the individual salts. Specifically, one ternary mixture KNO3 (50%), NaNO2 (40%) & Ca (NO3)2 (10%) and two quaternary mixtures KNO3 (50.25%), NaNO2 (35.5%), LiNO3 (9.5%) & Ca (NO3)2.4H2O (4.75%) and KNO3 (50.25%), NaNO2 (35.5%), LiNO3 (4.75%) & Ca (NO3)2.4H2O (9.5%) were synthesized. Experimental results have shown that ternary and quaternary molten salts exhibiting melting point below 110 C and higher thermal stability greater than 550 C. Synthesized quaternary salts are showing high heat capacity, low viscosity at higher temperatures. Corrosion studies of synthesized salts shown that QUAT-1 is showing low corrosion compared to other formulations. Among three formulations, QUAT-1 salt has shown higher specific heat capacity and low viscosity, and lower corrosion rate. 2022
50
Publisher
Journal of Energy Storage
Date
2022
Contributor
Naresh, Gaddam
Rajasekhar, Atmakuri
Bharali, Jitalaxmi
Ramesh, Kanaparthi
Type
journalArticle
Identifier
2352152X
10.1016/j.est.2022.104200
Collection
Citation
“Homogeneous molten salt formulations as thermal energy storage media and heat transfer fluid,” Lamar University Midstream Center Research, accessed May 18, 2024, https://lumc.omeka.net/items/show/25695.