Experimental Test of Properties of KCl-MgCl2 Eutectic Molten Salt for Heat Transfer and Thermal Storage Fluid in Concentrated Solar Power Systems

Xiankun Xu, Xiaoxin Wang, Peiwen Li, Yuanyuan Li, Qing Hao, Bo Xiao, Hassan Elsentriecy, Dominic F Gervasio

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The eutectic mixture of MgCl2-KCl molten salt is a high temperature heat transfer and thermal storage fluid able to be used at temperatures up to 800 °C in concentrating solar thermal power systems. The molten salt thermophysical properties are reported including vapor pressure, heat capacity, density, viscosity, thermal conductivity, and the corrosion behavior of nickel-based alloys in the molten salt corrosion at high temperatures. Correlations of the measured properties as functions of molten salt temperatures are presented for industrial applications. The test results of tensile strength of two nickel-based alloys exposed in the molten salt at a temperature of 800 °C from 1-week length to 16-week length are reported. It was found that the corrosion and strength loss is rather low when the salt is first processed to remove water and oxygen.

Original languageEnglish (US)
Article number051011
JournalJournal of Solar Energy Engineering, Transactions of the ASME
Volume140
Issue number5
DOIs
StatePublished - Oct 1 2018

Fingerprint

Solar energy
Eutectics
Molten materials
Salts
Heat transfer
Fluids
Corrosion
Temperature
Nickel
Vapor pressure
Industrial applications
Specific heat
Hot Temperature
Thermal conductivity
Tensile strength
Thermodynamic properties
Viscosity
Oxygen
Water

Keywords

  • concentrated solar power
  • high temperature heat transfer fluid
  • MgCl-KCl
  • molten chloride salt
  • thermal storage
  • thermophysical properties

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology

Cite this

Experimental Test of Properties of KCl-MgCl2 Eutectic Molten Salt for Heat Transfer and Thermal Storage Fluid in Concentrated Solar Power Systems. / Xu, Xiankun; Wang, Xiaoxin; Li, Peiwen; Li, Yuanyuan; Hao, Qing; Xiao, Bo; Elsentriecy, Hassan; Gervasio, Dominic F.

In: Journal of Solar Energy Engineering, Transactions of the ASME, Vol. 140, No. 5, 051011, 01.10.2018.

Research output: Contribution to journalArticle

@article{9188146d5f544ac8a8327588de4a9bd8,
title = "Experimental Test of Properties of KCl-MgCl2 Eutectic Molten Salt for Heat Transfer and Thermal Storage Fluid in Concentrated Solar Power Systems",
abstract = "The eutectic mixture of MgCl2-KCl molten salt is a high temperature heat transfer and thermal storage fluid able to be used at temperatures up to 800 °C in concentrating solar thermal power systems. The molten salt thermophysical properties are reported including vapor pressure, heat capacity, density, viscosity, thermal conductivity, and the corrosion behavior of nickel-based alloys in the molten salt corrosion at high temperatures. Correlations of the measured properties as functions of molten salt temperatures are presented for industrial applications. The test results of tensile strength of two nickel-based alloys exposed in the molten salt at a temperature of 800 °C from 1-week length to 16-week length are reported. It was found that the corrosion and strength loss is rather low when the salt is first processed to remove water and oxygen.",
keywords = "concentrated solar power, high temperature heat transfer fluid, MgCl-KCl, molten chloride salt, thermal storage, thermophysical properties",
author = "Xiankun Xu and Xiaoxin Wang and Peiwen Li and Yuanyuan Li and Qing Hao and Bo Xiao and Hassan Elsentriecy and Gervasio, {Dominic F}",
year = "2018",
month = "10",
day = "1",
doi = "10.1115/1.4040065",
language = "English (US)",
volume = "140",
journal = "Journal of Solar Energy Engineering, Transactions of the ASME",
issn = "0199-6231",
publisher = "American Society of Mechanical Engineers(ASME)",
number = "5",

}

TY - JOUR

T1 - Experimental Test of Properties of KCl-MgCl2 Eutectic Molten Salt for Heat Transfer and Thermal Storage Fluid in Concentrated Solar Power Systems

AU - Xu, Xiankun

AU - Wang, Xiaoxin

AU - Li, Peiwen

AU - Li, Yuanyuan

AU - Hao, Qing

AU - Xiao, Bo

AU - Elsentriecy, Hassan

AU - Gervasio, Dominic F

PY - 2018/10/1

Y1 - 2018/10/1

N2 - The eutectic mixture of MgCl2-KCl molten salt is a high temperature heat transfer and thermal storage fluid able to be used at temperatures up to 800 °C in concentrating solar thermal power systems. The molten salt thermophysical properties are reported including vapor pressure, heat capacity, density, viscosity, thermal conductivity, and the corrosion behavior of nickel-based alloys in the molten salt corrosion at high temperatures. Correlations of the measured properties as functions of molten salt temperatures are presented for industrial applications. The test results of tensile strength of two nickel-based alloys exposed in the molten salt at a temperature of 800 °C from 1-week length to 16-week length are reported. It was found that the corrosion and strength loss is rather low when the salt is first processed to remove water and oxygen.

AB - The eutectic mixture of MgCl2-KCl molten salt is a high temperature heat transfer and thermal storage fluid able to be used at temperatures up to 800 °C in concentrating solar thermal power systems. The molten salt thermophysical properties are reported including vapor pressure, heat capacity, density, viscosity, thermal conductivity, and the corrosion behavior of nickel-based alloys in the molten salt corrosion at high temperatures. Correlations of the measured properties as functions of molten salt temperatures are presented for industrial applications. The test results of tensile strength of two nickel-based alloys exposed in the molten salt at a temperature of 800 °C from 1-week length to 16-week length are reported. It was found that the corrosion and strength loss is rather low when the salt is first processed to remove water and oxygen.

KW - concentrated solar power

KW - high temperature heat transfer fluid

KW - MgCl-KCl

KW - molten chloride salt

KW - thermal storage

KW - thermophysical properties

UR - http://www.scopus.com/inward/record.url?scp=85051066938&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85051066938&partnerID=8YFLogxK

U2 - 10.1115/1.4040065

DO - 10.1115/1.4040065

M3 - Article

AN - SCOPUS:85051066938

VL - 140

JO - Journal of Solar Energy Engineering, Transactions of the ASME

JF - Journal of Solar Energy Engineering, Transactions of the ASME

SN - 0199-6231

IS - 5

M1 - 051011

ER -