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Article

Techno-Economic Assessment of Destabilized Li Hydride Systems for High Temperature Thermal Energy Storage

Greenway Energy, LLC, Aiken, SC 29803, USA
Received: 29 March 2020 / Revised: 22 April 2020 / Accepted: 22 April 2020 / Published: 25 April 2020
A comprehensive techno-economic analysis of destabilized Li hydrides, used as thermal energy storage systems in concentrating solar power plants, is presented and discussed. Two systems, operating at temperatures on the order of 550–650 °C, are selected as thermal energy storage units for steam power plants, namely the Si-destabilized Li hydride (LiSi) and the Al-destabilized Li hydride (LiAl). Two thermal energy storage systems, operating at temperatures on the order of 700–750 °C, are selected for integration in supercritical CO2 power plants, namely the Si-destabilized Li hydride (LiSi) and the Sn-destabilized Li hydride (LiSn). Each storage system demonstrates excellent volumetric capacity, achieving values between 100 and 250 kWhth/m3. The LiSi-based thermal energy storage systems can be integrated with steam and supercritical CO2 plants at a specific cost between 107 US$/kWhth and 109 US$/kWhth, with potential to achieve costs on the order of 74 US$/kWhth under enhanced configurations and scenarios. The LiAl-based storage system has the highest potential for large scale applications. The specific cost of the LiAl system, integrated in solar steam power plants, is equal to approximately 74 US$/kWhth, with potential to reach values on the order of 51 US$/kWhth under enhanced performance configurations and scenarios. View Full-Text
Keywords: thermal energy storage; concentrating solar power plant; metal hydride; destabilized Li material; techno-economic analysis; cost assessment thermal energy storage; concentrating solar power plant; metal hydride; destabilized Li material; techno-economic analysis; cost assessment
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MDPI and ACS Style

Corgnale, C. Techno-Economic Assessment of Destabilized Li Hydride Systems for High Temperature Thermal Energy Storage. Inorganics 2020, 8, 30. https://0-doi-org.brum.beds.ac.uk/10.3390/inorganics8050030

AMA Style

Corgnale C. Techno-Economic Assessment of Destabilized Li Hydride Systems for High Temperature Thermal Energy Storage. Inorganics. 2020; 8(5):30. https://0-doi-org.brum.beds.ac.uk/10.3390/inorganics8050030

Chicago/Turabian Style

Corgnale, Claudio. 2020. "Techno-Economic Assessment of Destabilized Li Hydride Systems for High Temperature Thermal Energy Storage" Inorganics 8, no. 5: 30. https://0-doi-org.brum.beds.ac.uk/10.3390/inorganics8050030

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