Survey and evaluation of equations for thermophysical properties of binary/ternary eutectic salts from NaCl, KCl, MgCl2, CaCl2, ZnCl2 for heat transfer and thermal storage fluids in CSP

Yuanyuan Li, Xiankun Xu, Xiaoxin Wang, Peiwen Li, Qing Hao, Bo Xiao

Research output: Research - peer-reviewArticle

  • 1 Citations

Abstract

Considered as promising candidates of composing eutectic chloride molten salts for high temperature heat transfer fluid (HTF) with low corrosivity to nickel-based alloys, NaCl, KCl, MgCl2, CaCl2, and ZnCl2 are formulated into proper binary and ternary mixtures to satisfy the property requirement for HTFs. Experimental and predicted thermophysical properties of 16 selected eutectic binary and ternary molten salts are provided. The molten salts can work in a temperature range from after eutectic melting to at least 800°C with low vapor pressure and acceptable low corrosivity. Surveyed equations and correlations for thermophysical properties of salt mixtures are used to predict heat capacity, density, thermal conductivity, and viscosity. The results are compared to experimental data from the author's tests as well as reported in literature. Evaluated equations and correlations that can better predict the transport properties of the salts are selected and recommended. Authors expect that more experimental tests will be conducted to provide data for application in CSP industry.

LanguageEnglish (US)
JournalSolar Energy
DOIs
StateAccepted/In press - Jan 21 2017

Fingerprint

Eutectics
Thermodynamic properties
Salts
Heat transfer
Fluids
Hot Temperature
Molten materials
Temperature
Nickel
Vapor pressure
Transport properties
Specific heat
Chlorides
Thermal conductivity
Melting
Viscosity
Industry

Keywords

  • Chloride eutectic molten salts
  • CSP
  • Heat transfer fluids
  • Thermal storage

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

Cite this

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title = "Survey and evaluation of equations for thermophysical properties of binary/ternary eutectic salts from NaCl, KCl, MgCl2, CaCl2, ZnCl2 for heat transfer and thermal storage fluids in CSP",
abstract = "Considered as promising candidates of composing eutectic chloride molten salts for high temperature heat transfer fluid (HTF) with low corrosivity to nickel-based alloys, NaCl, KCl, MgCl2, CaCl2, and ZnCl2 are formulated into proper binary and ternary mixtures to satisfy the property requirement for HTFs. Experimental and predicted thermophysical properties of 16 selected eutectic binary and ternary molten salts are provided. The molten salts can work in a temperature range from after eutectic melting to at least 800°C with low vapor pressure and acceptable low corrosivity. Surveyed equations and correlations for thermophysical properties of salt mixtures are used to predict heat capacity, density, thermal conductivity, and viscosity. The results are compared to experimental data from the author's tests as well as reported in literature. Evaluated equations and correlations that can better predict the transport properties of the salts are selected and recommended. Authors expect that more experimental tests will be conducted to provide data for application in CSP industry.",
keywords = "Chloride eutectic molten salts, CSP, Heat transfer fluids, Thermal storage",
author = "Yuanyuan Li and Xiankun Xu and Xiaoxin Wang and Peiwen Li and Qing Hao and Bo Xiao",
year = "2017",
month = "1",
doi = "10.1016/j.solener.2017.03.019",
journal = "Solar Energy",
issn = "0038-092X",
publisher = "Elsevier Limited",

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T1 - Survey and evaluation of equations for thermophysical properties of binary/ternary eutectic salts from NaCl, KCl, MgCl2, CaCl2, ZnCl2 for heat transfer and thermal storage fluids in CSP

AU - Li,Yuanyuan

AU - Xu,Xiankun

AU - Wang,Xiaoxin

AU - Li,Peiwen

AU - Hao,Qing

AU - Xiao,Bo

PY - 2017/1/21

Y1 - 2017/1/21

N2 - Considered as promising candidates of composing eutectic chloride molten salts for high temperature heat transfer fluid (HTF) with low corrosivity to nickel-based alloys, NaCl, KCl, MgCl2, CaCl2, and ZnCl2 are formulated into proper binary and ternary mixtures to satisfy the property requirement for HTFs. Experimental and predicted thermophysical properties of 16 selected eutectic binary and ternary molten salts are provided. The molten salts can work in a temperature range from after eutectic melting to at least 800°C with low vapor pressure and acceptable low corrosivity. Surveyed equations and correlations for thermophysical properties of salt mixtures are used to predict heat capacity, density, thermal conductivity, and viscosity. The results are compared to experimental data from the author's tests as well as reported in literature. Evaluated equations and correlations that can better predict the transport properties of the salts are selected and recommended. Authors expect that more experimental tests will be conducted to provide data for application in CSP industry.

AB - Considered as promising candidates of composing eutectic chloride molten salts for high temperature heat transfer fluid (HTF) with low corrosivity to nickel-based alloys, NaCl, KCl, MgCl2, CaCl2, and ZnCl2 are formulated into proper binary and ternary mixtures to satisfy the property requirement for HTFs. Experimental and predicted thermophysical properties of 16 selected eutectic binary and ternary molten salts are provided. The molten salts can work in a temperature range from after eutectic melting to at least 800°C with low vapor pressure and acceptable low corrosivity. Surveyed equations and correlations for thermophysical properties of salt mixtures are used to predict heat capacity, density, thermal conductivity, and viscosity. The results are compared to experimental data from the author's tests as well as reported in literature. Evaluated equations and correlations that can better predict the transport properties of the salts are selected and recommended. Authors expect that more experimental tests will be conducted to provide data for application in CSP industry.

KW - Chloride eutectic molten salts

KW - CSP

KW - Heat transfer fluids

KW - Thermal storage

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