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

Thermo-economic analysis of high-temperature sensible thermal storage with different ternary eutectic alkali and alkaline earth metal chlorides

Simple item page
dc.contributor.authorMohan, Gowtham
dc.contributor.authorBrahmadesham Venkataraman, Mahesh
dc.contributor.authorGomez-Vidal, Judith
dc.contributor.authorCoventry, Joseph
dc.date.accessioned2020-03-20T04:07:05Z
dc.date.issued2018
dc.date.updated2019-11-25T07:43:57Z
dc.description.abstractMolten salt mixtures with alkali and alkaline earth metal chlorides were developed for high-temperature sensible thermal energy storage in support of concurrent efforts to develop high-temperature advanced power cycles for concentrating solar power applications. Four ternary chloride mixtures with different cation combinations (Na, K, Li, Mg) were designed using the FactSage® software, and for three of these, the eutectic point was experimentally validated by differential scanning calorimetry. Specific heat capacity measurements were conducted following the ASTM E1269 standard, and were measured between 1.18 J/g/K and 1.31 J/g/K. The mass loss of the molten chloride salts was studied under three different gas blankets of nitrogen, argon and air by thermogravimetric analysis. All the selected salt mixtures were stable up to 700 °C, although weight loss due to vaporisation becomes significant around this temperature due to the high vapour pressure of the chloride salt mixtures. However, it is expected that operation at a temperature up to around 750 °C will be feasible in a closed system with an inert environment. Additionally, removal of chemically-bonded water and salt purification may need to be considered for extending the operating temperature. In terms of economic performance, although the inclusion of LiCl in the ternary eutectic mixtures is advantageous for reducing melting point and increasing specific heat capacity, at current costs, these benefits are unlikely to be justified unless LiCl cost reduces by a factor of three. The NaCl-KCl-MgCl2 mixture has the lowest cost per unit energy stored, at 4.5 USD/kWh.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).en_AU
dc.format.mimetypeapplication/pdfen_AU
dc.identifier.issn0038-092Xen_AU
dc.identifier.urihttp://hdl.handle.net/1885/202411
dc.language.isoen_AUen_AU
dc.publisherElsevieren_AU
dc.rights© 2018 Elsevier Ltden_AU
dc.sourceSolar Energyen_AU
dc.titleThermo-economic analysis of high-temperature sensible thermal storage with different ternary eutectic alkali and alkaline earth metal chloridesen_AU
dc.typeJournal articleen_AU
local.bibliographicCitation.lastpage357en_AU
local.bibliographicCitation.startpage350en_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.absfor091207 - Metals and Alloy Materialsen_AU
local.identifier.absseo850602 - Energy Storage (excl. Hydrogen)en_AU
local.identifier.absseo850506 - Solar-Thermal Energyen_AU
local.identifier.ariespublicationu3102795xPUB49en_AU
local.identifier.citationvolume176en_AU
local.identifier.doi10.1016/j.solener.2018.10.008en_AU
local.identifier.scopusID2-s2.0-85055036243
local.identifier.uidSubmittedByu3102795en_AU
local.publisher.urlhttps://www.elsevier.com/en-auen_AU
local.type.statusPublished Versionen_AU

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
01_Mohan_Thermo-economic_analysis_of_2018.pdf
Size:
3.79 MB
Format:
Adobe Portable Document Format
Download

Collections

ANU Research Publications

DSpace software copyright © 2002-2024 LYRASIS