ANU Open Research Repository will be unavailable 8am-9am on Tuesday 13th August 2024 due to scheduled maintenance.
 

Assessment of a novel ternary eutectic chloride salt for next generation high-temperature sensible heat storage

Simple item page
dc.contributor.authorMohan, Gowtham
dc.contributor.authorBrahmadesham Venkataraman, Mahesh
dc.contributor.authorGomez-Vidal, Judith
dc.contributor.authorCoventry, Joseph
dc.date.accessioned2019-12-06T01:49:03Z
dc.date.issued2018-05-02
dc.date.updated2019-07-28T08:16:52Z
dc.description.abstractA novel ternary eutectic salt mixture for high-temperature sensible heat storage, composed of sodium chloride, potassium chloride and magnesium chloride (NaKMg–Cl) was developed based on a phase diagram generated with FactSage®. The differential scanning calorimetry (DSC) technique was used to experimentally validate the predicted melting point of the ternary eutectic composition, which was measured as 387°C, in good agreement with the prediction. The ternary eutectic was compared to two binary salts formulated based on prediction of the eutectic composition by FactSage, but unfortunately DSC measurements showed that neither binary salt composition was eutectic. Nonetheless, the measured thermo-physical properties of the ternary and the two binary mixtures are compared. Liquid heat capacities of both the ternary and binary salts were determined by using DSC with sapphire as the standard reference. The average heat capacity of the ternary mixture was recorded as 1.18 J g−1 K−1. The mass loss of the molten eutectic salts was studied up to 1000°C using a thermogravimetric analyser in nitrogen, argon and air. The results showed a significant mass loss due to vaporisation in an open system, particularly above 700°C. However, simulation of mass loss in a closed system with an inert cover gas indicates storage temperatures above 700°C may be feasible, and highlights the importance of the design of the storage tank system. In terms of storage material cost, the NaKMg-Cl mixture is approximately 4.5 USD/kWh, which is 60% cheaper than current state-of-the-art nitrate salt mixtures.en_AU
dc.description.sponsorshipThis project is funded by Australian Solar Thermal Research Initiative (ASTRI), a project supported by the Australian Renewable Energy Agency (ARENA). We also thank Mr. Mark Mehos for facilitating the experimental facilities in the Thermal Storage Materials Lab at the National Renewable Energy Laboratory (NREL). The work at NREL was financially supported by the U.S. Department of Energy under Contract No. DE-AC36-08-GO28308.en_AU
dc.format.mimetypeapplication/pdfen_AU
dc.identifier.issn0196-8904en_AU
dc.identifier.urihttp://hdl.handle.net/1885/188463
dc.language.isoen_AUen_AU
dc.publisherPergamon Press Ltd.en_AU
dc.rights© 2018 Elsevier Ltd.en_AU
dc.sourceEnergy Conversion and Managementen_AU
dc.subjectHigh-temperatureen_AU
dc.subjectSensible heat storageen_AU
dc.subjectMelting pointen_AU
dc.subjectHeat capacityen_AU
dc.subjectMass lossen_AU
dc.subjectMolten salten_AU
dc.titleAssessment of a novel ternary eutectic chloride salt for next generation high-temperature sensible heat storageen_AU
dc.typeJournal articleen_AU
dcterms.dateAccepted2018-04-27
local.bibliographicCitation.lastpage164en_AU
local.bibliographicCitation.startpage156en_AU
local.contributor.affiliationMohan, Gowtham, College of Engineering and Computer Science, ANUen_AU
local.contributor.affiliationBrahmadesham Venkataraman, Mahesh, College of Engineering and Computer Science, ANUen_AU
local.contributor.affiliationGomez-Vidal, Judith, National Renewable Energy Laboratoryen_AU
local.contributor.affiliationCoventry, Joseph, College of Engineering and Computer Science, ANUen_AU
local.contributor.authoremailu4005930@anu.edu.auen_AU
local.contributor.authoruidMohan, Gowtham, u5780352en_AU
local.contributor.authoruidBrahmadesham Venkataraman, Mahesh, u5699095en_AU
local.contributor.authoruidCoventry, Joseph, u4005930en_AU
local.description.embargo2037-12-31
local.description.notesImported from ARIESen_AU
local.identifier.absfor091305 - Energy Generation, Conversion and Storage Engineeringen_AU
local.identifier.absfor091505 - Heat and Mass Transfer Operationsen_AU
local.identifier.ariespublicationa383154xPUB10318en_AU
local.identifier.citationvolume167en_AU
local.identifier.doi10.1016/j.enconman.2018.04.100en_AU
local.identifier.scopusID2-s2.0-85046705938
local.identifier.uidSubmittedBya383154en_AU
local.publisher.urlhttps://www.sciencedirect.comen_AU
local.type.statusPublished Versionen_AU

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
01_Mohan_Assessment_of_a_novel_ternary_2018.pdf
Size:
2.33 MB
Format:
Adobe Portable Document Format
Download

Collections

ANU Research Publications

DSpace software copyright © 2002-2024 LYRASIS