- Title
- On-sun testing of miscibility gap alloy thermal storage
- Creator
- Copus, Mark; Fraser, Benjamin; Reece, Roger; Hands, Stuart; Cuskelly, Dylan; Sugo, Heber; Reed, Samuel; Bradley, James; Post, Alexander; Kisi, Erich
- Relation
- ARC.DP150101257 http://purl.org/au-research/grants/arc/DP150101257
- Relation
- Solar Energy Vol. 177, Issue 1 January 2019, p. 657-664
- Publisher Link
- http://dx.doi.org/10.1016/j.solener.2018.11.048
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2019
- Description
- The ability of a C-Zn Miscibility Gap Alloy (MGA) material to operate as a combined solar receiver and storage was investigated. MGA thermal energy storage materials comprise metallic PCM particles embedded within a conducting metal or semi-metal matrix to form a macroscopically solid combined latent heat/sensible heat storage material. A receiver containing 4 × 1L MGA storage modules was mounted on a solar concentrating dish. The storage material was directly illuminated by concentrated solar radiation at a flux of approximately 105 kW/m2, readily attaining surface temperatures of 520–530 °C, well above the phase change temperature of 420 °C. Single step charging led to a state of charge of 80% without exceeding a nominal surface temperature of 530 °C. Cycling on and off sun in the range 460–520 °C was used to achieve a state of 99% charged. Thermal performance of the MGA during solar charging and its discharge by natural cooling is presented and analysed.
- Subject
- thermal storage; phase change material; concentrated solar power; solar absorption; SDG 7; Sustainable Development Goals
- Identifier
- http://hdl.handle.net/1959.13/1466785
- Identifier
- uon:47660
- Identifier
- ISSN:0038-092X
- Rights
- © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
- Language
- eng
- Full Text
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