Abstract
The AMTEC (Alkali Metal Thermo-Electric Converter) or SHE (Sodium Heat Engine) is a device for direct conversion of heat into electricity without the need of any moving parts [1–3]. The AMTEC has been considered for applications like remote terrestrial power generation, industrial co-generation, and space nuclear power generation [4, 5]. The betaalumina solid electrolyte (BASE) is the crucial component in AMTEC systems. Today it is produced in large quantities for the sodium/sulphur cell, other similar energy storage devices, and sensors. These systems work at much lower temperatures compared with the AMTEC. The principle of AMTEC systems performance has been demonstrated many times; however the long-term reliability of the solid electrolyte and the other components has still to be proved.
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