| Description |
1 online resource (12 pages) : illustrations, map. |
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text txt rdacontent |
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computer c rdamedia |
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online resource cr rdacarrier |
| Series |
NREL/CP ; 5700-77426 |
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Conference paper (National Renewable Energy Laboratory (U.S.)) ; 5700-77426.
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| Note |
"October 2020." |
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"Presented at the 26th SolarPACES conference 2020, September 28 - October 2, 2020"--cover. |
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In scope of the U.S. Government Publishing Office Catalog and Indexing Program (C&I) and Federal Depository Library Program (FDLP). |
| Bibliography |
Includes bibliographical references (pages 11-12). |
| Funding |
Sponsored by the National Renewable Energy Laboratory, operated by Alliance for Sustainable Energy, LLC, for the U.S. Department of Energy DE-AC36-08GO28308 |
| Note |
Description based on online resource; title from PDF title page (NREL, viewed March 15, 2023). |
| Summary |
Free from siting constraints, thermal energy storage (TES) shows promise as an economical alternative to traditional pumped-storage hydropower (PSH) and compressed air energy storage (CAES). As potential thermal energy storage media, many solid particles demonstrate stability over wide temperature ranges which allows for increased sensible energy storage density and is essential in achieving low-cost storage. Silica sand, in the form of a-quartz, is one such candidate. This work presents a brief review of relevant silica thermophysical properties and further investigates the thermal stability of silica particles as a candidate TES media by subjecting them to two different thermal campaigns: (1) a 500-hour thermal treatment at 1200 degrees C under varied atmospheres; and (2) cycling 25, 50, and 100 times between 300 degrees C and 1200 degrees C. For both campaigns, particle stability is examined by means of pre- and post-treatment Mie scattering. An additional XRD analysis is conducted for the 500-hour treatment in air. Results indicate limited changes in both particle distribution and crystallographic structure which is promising for the application as solid particle media for thermal energy storage. |
| Subject |
Silica -- Thermal properties -- United States.
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Sand, Glass -- United States.
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Heat storage.
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Energy storage -- United States.
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Silice -- Propriétés thermiques -- États-Unis.
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Chaleur -- Stockage.
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Énergie -- Stockage -- États-Unis.
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Energy storage
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Heat storage
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Sand, Glass
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United States https://id.oclc.org/worldcat/entity/E39PBJtxgQXMWqmjMjjwXRHgrq
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| Indexed Term |
concentrating solar power |
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particle stability |
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quartz |
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sand |
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silica |
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solar |
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thermal energy storage |
| Genre/Form |
technical reports.
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Technical reports
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Technical reports.
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Rapports techniques.
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| Added Author |
National Renewable Energy Laboratory (U.S.), issuing body.
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| Standard No. |
1677468 OSTI ID |
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0000-0003-1825-9697 |
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0000-0003-3718-8038 |
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0000-0002-5177-2372 |
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0000-0003-1057-5126 |
| Gpo Item No. |
0430-P-04 (online) |
| Sudoc No. |
E 9.17:NREL/CP-5700-77426 |
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