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Discharge performance of blended salt in matrix materials for low enthalpy thermochemical storage

R. Sutton, Eifion Jewell Orcid Logo, Jonathon Elvins, Justin Searle Orcid Logo

Applied Thermal Engineering, Volume: 145, Pages: 483 - 493

Swansea University Authors: Eifion Jewell Orcid Logo, Jonathon Elvins, Justin Searle Orcid Logo

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DOI (Published version): 10.1016/j.applthermaleng.2018.09.052

Abstract

A novel study is undertaken on low cost thermochemical storage which utilizes temperatures which are compatible with low grade renewable energy capture. The discharge performance of thermochemical storage matrix materials is assessed using a custom developed experimental apparatus which provides a m...

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Published in: Applied Thermal Engineering
ISSN: 13594311
Published: 2018
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URI: https://cronfa.swan.ac.uk/Record/cronfa43791
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first_indexed 2018-09-12T18:59:52Z
last_indexed 2020-07-26T19:05:01Z
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spelling 2020-07-26T16:48:18.0648653 v2 43791 2018-09-12 Discharge performance of blended salt in matrix materials for low enthalpy thermochemical storage 13dc152c178d51abfe0634445b0acf07 0000-0002-6894-2251 Eifion Jewell Eifion Jewell true false 8f619d25f6c30f8af32bc634e4775e21 Jonathon Elvins Jonathon Elvins true false 0e3f2c3812f181eaed11c45554d4cdd0 0000-0003-1101-075X Justin Searle Justin Searle true false 2018-09-12 MECH A novel study is undertaken on low cost thermochemical storage which utilizes temperatures which are compatible with low grade renewable energy capture. The discharge performance of thermochemical storage matrix materials is assessed using a custom developed experimental apparatus which provides a means of comparing materials under scaled reactor conditions. The basic performance of three salts (CaCl2, LiNO3 and MgSO4) was investigated and their subsequent performance using layering and blending techniques established that the performance could be increased by up to 24% through the correct choice of mixing technique. Layering the CaCl2 on the LiNO3 provided the most efficient thermal release strategy and yielded a thermal storage density of 0.2 GJ/m3. The research also uniquely highlights the important finding that incorrect mixing of the materials can lead to a significant reduction in efficiency with freely mixed CaCl2 and LiNO3 possessing a storage capacity of less than 0.01 GJ/m3 as a result of chemical interactions between the deliquesced materials in close proximity. The paper has impact for the design and control of thermochemical storage systems as it clearly identifies how performance can be improved or degraded by the choice and the structuring of the materials. Journal Article Applied Thermal Engineering 145 483 493 13594311 Thermochemical storage, salt hydration, transpired solar collector, composite sorbents, Calcium Chloride, Lithium Nitrate, Magnesium Sulphate 31 12 2018 2018-12-31 10.1016/j.applthermaleng.2018.09.052 COLLEGE NANME Mechanical Engineering COLLEGE CODE MECH Swansea University 2020-07-26T16:48:18.0648653 2018-09-12T12:56:26.5031434 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering R. Sutton 1 Eifion Jewell 0000-0002-6894-2251 2 Jonathon Elvins 3 Justin Searle 0000-0003-1101-075X 4 0043791-12092018130404.pdf sutton2018.pdf 2018-09-12T13:04:04.4300000 Output 1162306 application/pdf Accepted Manuscript true 2019-09-11T00:00:00.0000000 true eng
title Discharge performance of blended salt in matrix materials for low enthalpy thermochemical storage
spellingShingle Discharge performance of blended salt in matrix materials for low enthalpy thermochemical storage
Eifion Jewell
Jonathon Elvins
Justin Searle
title_short Discharge performance of blended salt in matrix materials for low enthalpy thermochemical storage
title_full Discharge performance of blended salt in matrix materials for low enthalpy thermochemical storage
title_fullStr Discharge performance of blended salt in matrix materials for low enthalpy thermochemical storage
title_full_unstemmed Discharge performance of blended salt in matrix materials for low enthalpy thermochemical storage
title_sort Discharge performance of blended salt in matrix materials for low enthalpy thermochemical storage
author_id_str_mv 13dc152c178d51abfe0634445b0acf07
8f619d25f6c30f8af32bc634e4775e21
0e3f2c3812f181eaed11c45554d4cdd0
author_id_fullname_str_mv 13dc152c178d51abfe0634445b0acf07_***_Eifion Jewell
8f619d25f6c30f8af32bc634e4775e21_***_Jonathon Elvins
0e3f2c3812f181eaed11c45554d4cdd0_***_Justin Searle
author Eifion Jewell
Jonathon Elvins
Justin Searle
author2 R. Sutton
Eifion Jewell
Jonathon Elvins
Justin Searle
format Journal article
container_title Applied Thermal Engineering
container_volume 145
container_start_page 483
publishDate 2018
institution Swansea University
issn 13594311
doi_str_mv 10.1016/j.applthermaleng.2018.09.052
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering
document_store_str 1
active_str 0
description A novel study is undertaken on low cost thermochemical storage which utilizes temperatures which are compatible with low grade renewable energy capture. The discharge performance of thermochemical storage matrix materials is assessed using a custom developed experimental apparatus which provides a means of comparing materials under scaled reactor conditions. The basic performance of three salts (CaCl2, LiNO3 and MgSO4) was investigated and their subsequent performance using layering and blending techniques established that the performance could be increased by up to 24% through the correct choice of mixing technique. Layering the CaCl2 on the LiNO3 provided the most efficient thermal release strategy and yielded a thermal storage density of 0.2 GJ/m3. The research also uniquely highlights the important finding that incorrect mixing of the materials can lead to a significant reduction in efficiency with freely mixed CaCl2 and LiNO3 possessing a storage capacity of less than 0.01 GJ/m3 as a result of chemical interactions between the deliquesced materials in close proximity. The paper has impact for the design and control of thermochemical storage systems as it clearly identifies how performance can be improved or degraded by the choice and the structuring of the materials.
published_date 2018-12-31T03:55:08Z
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score 10.997933

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