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Stabilization of molten salt materials using metal chlorides for solar thermal storage
Scientific Reports, Volume: 8, Issue: 1
Swansea University Author: James Sullivan
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DOI (Published version): 10.1038/s41598-018-26537-8
Abstract
The effect of a variety of metal-chlorides additions on the melting behavior and thermal stability of commercially available salts was investigated. Ternary salts comprised of KNO3, NaNO2, and NaNO3 were produced with additions of a variety of chlorides (KCl, LiCl, CaCl2, ZnCl2, NaCl and MgCl2). The...
Published in: | Scientific Reports |
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ISSN: | 2045-2322 |
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2018
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URI: | https://cronfa.swan.ac.uk/Record/cronfa40539 |
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<?xml version="1.0"?><rfc1807><datestamp>2018-08-07T10:42:56.1317814</datestamp><bib-version>v2</bib-version><id>40539</id><entry>2018-05-31</entry><title>Stabilization of molten salt materials using metal chlorides for solar thermal storage</title><swanseaauthors><author><sid>40e32d66748ab74184a31207ab145708</sid><ORCID>0000-0003-1018-773X</ORCID><firstname>James</firstname><surname>Sullivan</surname><name>James Sullivan</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2018-05-31</date><deptcode>MTLS</deptcode><abstract>The effect of a variety of metal-chlorides additions on the melting behavior and thermal stability of commercially available salts was investigated. Ternary salts comprised of KNO3, NaNO2, and NaNO3 were produced with additions of a variety of chlorides (KCl, LiCl, CaCl2, ZnCl2, NaCl and MgCl2). Thermogravimetric analysis and weight loss experiments showed that the quaternary salt containing a 5 wt% addition of LiCl and KCl led to an increase in short term thermal stability compared to the ternary control salts. These additions allowed the salts to remain stable up to a temperature of 630 °C. Long term weight loss experiments showed an upper stability increase of 50 °C. A 5 wt% LiCl addition resulted in a weight loss of only 25% after 30 hours in comparison to a 61% loss for control ternary salts. Calorimetry showed that LiCl additions allow partial melting at 80 °C, in comparison to the 142 °C of ternary salts. This drop in melting point, combined with increased stability, provided a molten working range increase of almost 100 °C in total, in comparison to the control ternary salts. XRD analysis showed the oxidation effect of decomposing salts and the additional phase created with LiCl additions to allow melting point changes to occur.</abstract><type>Journal Article</type><journal>Scientific Reports</journal><volume>8</volume><journalNumber>1</journalNumber><publisher/><issnElectronic>2045-2322</issnElectronic><keywords/><publishedDay>29</publishedDay><publishedMonth>5</publishedMonth><publishedYear>2018</publishedYear><publishedDate>2018-05-29</publishedDate><doi>10.1038/s41598-018-26537-8</doi><url/><notes/><college>COLLEGE NANME</college><department>Materials Science and Engineering</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>MTLS</DepartmentCode><institution>Swansea University</institution><apcterm/><lastEdited>2018-08-07T10:42:56.1317814</lastEdited><Created>2018-05-31T13:56:59.4909406</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Engineering and Applied Sciences - Materials Science and Engineering</level></path><authors><author><firstname>T. O.</firstname><surname>Dunlop</surname><order>1</order></author><author><firstname>D. J.</firstname><surname>Jarvis</surname><order>2</order></author><author><firstname>W. E.</firstname><surname>Voice</surname><order>3</order></author><author><firstname>J. H.</firstname><surname>Sullivan</surname><order>4</order></author><author><firstname>James</firstname><surname>Sullivan</surname><orcid>0000-0003-1018-773X</orcid><order>5</order></author></authors><documents><document><filename>0040539-31052018140004.pdf</filename><originalFilename>dunlop2018.pdf</originalFilename><uploaded>2018-05-31T14:00:04.4000000</uploaded><type>Output</type><contentLength>1244379</contentLength><contentType>application/pdf</contentType><version>Version of Record</version><cronfaStatus>true</cronfaStatus><embargoDate>2018-05-31T00:00:00.0000000</embargoDate><copyrightCorrect>true</copyrightCorrect><language>eng</language></document></documents><OutputDurs/></rfc1807> |
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2018-08-07T10:42:56.1317814 v2 40539 2018-05-31 Stabilization of molten salt materials using metal chlorides for solar thermal storage 40e32d66748ab74184a31207ab145708 0000-0003-1018-773X James Sullivan James Sullivan true false 2018-05-31 MTLS The effect of a variety of metal-chlorides additions on the melting behavior and thermal stability of commercially available salts was investigated. Ternary salts comprised of KNO3, NaNO2, and NaNO3 were produced with additions of a variety of chlorides (KCl, LiCl, CaCl2, ZnCl2, NaCl and MgCl2). Thermogravimetric analysis and weight loss experiments showed that the quaternary salt containing a 5 wt% addition of LiCl and KCl led to an increase in short term thermal stability compared to the ternary control salts. These additions allowed the salts to remain stable up to a temperature of 630 °C. Long term weight loss experiments showed an upper stability increase of 50 °C. A 5 wt% LiCl addition resulted in a weight loss of only 25% after 30 hours in comparison to a 61% loss for control ternary salts. Calorimetry showed that LiCl additions allow partial melting at 80 °C, in comparison to the 142 °C of ternary salts. This drop in melting point, combined with increased stability, provided a molten working range increase of almost 100 °C in total, in comparison to the control ternary salts. XRD analysis showed the oxidation effect of decomposing salts and the additional phase created with LiCl additions to allow melting point changes to occur. Journal Article Scientific Reports 8 1 2045-2322 29 5 2018 2018-05-29 10.1038/s41598-018-26537-8 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University 2018-08-07T10:42:56.1317814 2018-05-31T13:56:59.4909406 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering T. O. Dunlop 1 D. J. Jarvis 2 W. E. Voice 3 J. H. Sullivan 4 James Sullivan 0000-0003-1018-773X 5 0040539-31052018140004.pdf dunlop2018.pdf 2018-05-31T14:00:04.4000000 Output 1244379 application/pdf Version of Record true 2018-05-31T00:00:00.0000000 true eng |
title |
Stabilization of molten salt materials using metal chlorides for solar thermal storage |
spellingShingle |
Stabilization of molten salt materials using metal chlorides for solar thermal storage James Sullivan |
title_short |
Stabilization of molten salt materials using metal chlorides for solar thermal storage |
title_full |
Stabilization of molten salt materials using metal chlorides for solar thermal storage |
title_fullStr |
Stabilization of molten salt materials using metal chlorides for solar thermal storage |
title_full_unstemmed |
Stabilization of molten salt materials using metal chlorides for solar thermal storage |
title_sort |
Stabilization of molten salt materials using metal chlorides for solar thermal storage |
author_id_str_mv |
40e32d66748ab74184a31207ab145708 |
author_id_fullname_str_mv |
40e32d66748ab74184a31207ab145708_***_James Sullivan |
author |
James Sullivan |
author2 |
T. O. Dunlop D. J. Jarvis W. E. Voice J. H. Sullivan James Sullivan |
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Journal article |
container_title |
Scientific Reports |
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8 |
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2018 |
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Swansea University |
issn |
2045-2322 |
doi_str_mv |
10.1038/s41598-018-26537-8 |
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Faculty of Science and Engineering |
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Faculty of Science and Engineering |
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facultyofscienceandengineering |
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Faculty of Science and Engineering |
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School of Engineering and Applied Sciences - Materials Science and Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Materials Science and Engineering |
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description |
The effect of a variety of metal-chlorides additions on the melting behavior and thermal stability of commercially available salts was investigated. Ternary salts comprised of KNO3, NaNO2, and NaNO3 were produced with additions of a variety of chlorides (KCl, LiCl, CaCl2, ZnCl2, NaCl and MgCl2). Thermogravimetric analysis and weight loss experiments showed that the quaternary salt containing a 5 wt% addition of LiCl and KCl led to an increase in short term thermal stability compared to the ternary control salts. These additions allowed the salts to remain stable up to a temperature of 630 °C. Long term weight loss experiments showed an upper stability increase of 50 °C. A 5 wt% LiCl addition resulted in a weight loss of only 25% after 30 hours in comparison to a 61% loss for control ternary salts. Calorimetry showed that LiCl additions allow partial melting at 80 °C, in comparison to the 142 °C of ternary salts. This drop in melting point, combined with increased stability, provided a molten working range increase of almost 100 °C in total, in comparison to the control ternary salts. XRD analysis showed the oxidation effect of decomposing salts and the additional phase created with LiCl additions to allow melting point changes to occur. |
published_date |
2018-05-29T03:51:35Z |
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1763752537621528576 |
score |
11.035655 |