Sodium-based hydrides for thermal energy applications

Concentrating solar–thermal power (CSP) with thermal energy storage (TES) represents an attractive alternative to conventional fossil fuels for base-load power generation. Sodium alanate (NaAlH 4 ) is a well-known sodium-based complex metal hydride but, more recently, high-temperature sodium-based c...

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Veröffentlicht in:Applied physics. A, Materials science & processing Materials science & processing, 2016-04, Vol.122 (4), p.1-13, Article 406
Hauptverfasser: Sheppard, D. A., Humphries, T. D., Buckley, C. E.
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Sprache:eng
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Zusammenfassung:Concentrating solar–thermal power (CSP) with thermal energy storage (TES) represents an attractive alternative to conventional fossil fuels for base-load power generation. Sodium alanate (NaAlH 4 ) is a well-known sodium-based complex metal hydride but, more recently, high-temperature sodium-based complex metal hydrides have been considered for TES. This review considers the current state of the art for NaH, NaMgH 3− x F x , Na-based transition metal hydrides, NaBH 4 and Na 3 AlH 6 for TES and heat pumping applications. These metal hydrides have a number of advantages over other classes of heat storage materials such as high thermal energy storage capacity, low volume, relatively low cost and a wide range of operating temperatures (100 °C to more than 650 °C). Potential safety issues associated with the use of high-temperature sodium-based hydrides are also addressed.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-016-9830-3