Title :
Design and performance evaluation on a small-sized AMTEC cell component
Author_Institution :
Shizuoka Inst. of Sci. & Technol., Fukuroi, Japan
Abstract :
An AMTEC cell component of a free-standing type has been designed and fabricated. For the proposed cell component it is intended to use a small-sized and thin beta"-alumina electrolyte tube. The particular expected features of the cell component are its structural simplicity and lower temperature operation around 900 K. The design adopted molybdenum cathode electrodes and capillary wick tubes of 50 μm in inside diameter. Preliminary test of the cell component has been carried out and the measured performance has been evaluated. The following matters are discussed; (1) capillary wick design for sodium recirculation, (2) performance of molybdenum electrodes under the low temperature operation, and (3) thermal supply method to the cell component
Keywords :
alumina; electrodes; molybdenum; thermoelectric conversion; thermoelectric devices; 50 mum; 900 K; Al2O3; Mo; capillary wick design; capillary wick tubes; design evaluation; low temperature operation; lower temperature operation; molybdenum cathode electrodes; molybdenum electrodes performance; performance evaluation; small-sized AMTEC cell component; sodium recirculation; structural simplicity; thermal supply method; thin beta"-alumina electrolyte tube; Cathodes; Conducting materials; Costs; Electrodes; Extraterrestrial measurements; Power generation; Power systems; Shape; Temperature; Testing;
Conference_Titel :
Energy Conversion Engineering Conference and Exhibit, 2000. (IECEC) 35th Intersociety
Conference_Location :
Las Vegas, NV
Print_ISBN :
1-56347-375-5
DOI :
10.1109/IECEC.2000.870892
