Abstract
The alkali metal thermoelectric converter (AMTEC) is an efficient device for the direct conversion of heat to electricity. A new method to supply thermal energy to beta”-alumina solid electrolyte (BASE) tubes is proposed in this paper. Porous metal inserted between a high-temperature thermal source and the BASE tubes not only collects current generated from electrodes but also enhances the heat transfer. An experimental study has been conducted on the disturbance of vapor flow through the porous metal. Its effect on the AMTEC performance has been examined. The calculated results indicate that the sodium vapor flow resistance converted into temperatre difference is in the range from 20 K to 50 K and the expected increase of power density with porous metal current collection structure is ~50%. The influence of potential drop along the electrode is also discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 1240-1245 |
| Number of pages | 6 |
| Journal | Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B |
| Volume | 58 |
| Issue number | 548 |
| DOIs | |
| Publication status | Published - 1992 |
| Externally published | Yes |
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Keywords
- Direct Energy Conversion
- Energy Conversion
- Heat Transfer Enhancement
- Porous Media
- Solid Electrolyte
- Thermal Efficiency
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanical Engineering
Cite this
Fundamental Study on the Electrodes for Alkali Metal Thermoelectric Converter (3rd Report, the Performance of Current Collection Structure with Porous Metal). / Tanaka, Kotaro; Negishi, Akira; Masuda, Toshihisa.
In: Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 58, No. 548, 1992, p. 1240-1245.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Fundamental Study on the Electrodes for Alkali Metal Thermoelectric Converter (3rd Report, the Performance of Current Collection Structure with Porous Metal)
AU - Tanaka, Kotaro
AU - Negishi, Akira
AU - Masuda, Toshihisa
PY - 1992
Y1 - 1992
N2 - The alkali metal thermoelectric converter (AMTEC) is an efficient device for the direct conversion of heat to electricity. A new method to supply thermal energy to beta”-alumina solid electrolyte (BASE) tubes is proposed in this paper. Porous metal inserted between a high-temperature thermal source and the BASE tubes not only collects current generated from electrodes but also enhances the heat transfer. An experimental study has been conducted on the disturbance of vapor flow through the porous metal. Its effect on the AMTEC performance has been examined. The calculated results indicate that the sodium vapor flow resistance converted into temperatre difference is in the range from 20 K to 50 K and the expected increase of power density with porous metal current collection structure is ~50%. The influence of potential drop along the electrode is also discussed.
AB - The alkali metal thermoelectric converter (AMTEC) is an efficient device for the direct conversion of heat to electricity. A new method to supply thermal energy to beta”-alumina solid electrolyte (BASE) tubes is proposed in this paper. Porous metal inserted between a high-temperature thermal source and the BASE tubes not only collects current generated from electrodes but also enhances the heat transfer. An experimental study has been conducted on the disturbance of vapor flow through the porous metal. Its effect on the AMTEC performance has been examined. The calculated results indicate that the sodium vapor flow resistance converted into temperatre difference is in the range from 20 K to 50 K and the expected increase of power density with porous metal current collection structure is ~50%. The influence of potential drop along the electrode is also discussed.
KW - Direct Energy Conversion
KW - Energy Conversion
KW - Heat Transfer Enhancement
KW - Porous Media
KW - Solid Electrolyte
KW - Thermal Efficiency
UR - http://www.scopus.com/inward/record.url?scp=0004742711&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0004742711&partnerID=8YFLogxK
U2 - 10.1299/kikaib.58.1240
DO - 10.1299/kikaib.58.1240
M3 - Article
AN - SCOPUS:0004742711
VL - 58
SP - 1240
EP - 1245
JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
SN - 0387-5016
IS - 548
ER -