Performance projections of alternative AMTEC systems and devices

Conference · Tue Jan 01 04:00:00 EST 1991 · AIP Conference Proceedings (American Institute of Physics); (USA)

DOI:https://doi.org/10.1063/1.40141· OSTI ID:5694503

Underwood, M L; Williams, R M; Jeffries-Nakamura, B; Ryan, M A; O'Connor, D ^[1]

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1. Jet Propulsion Laboratory California Institute of Technology Pasadena, CA 91109 (US)

The AMTEC is a device for the direct conversion of heat to electrical power with no moving parts. Most proposed AMTEC systems have focused on minimizing converter mass for space applications. This paper presents two AMTEC devices that focus on high conversion efficiencies ({gt}30% at 1100 K) and high volumetric power densities. These high current, low voltage modules could find use in small applications such as EM pumps or large systems requiring many modules to reach the desired power levels. A near term system called the tube bundle system produces a peak power of 426 W/1 and a peak efficiency (at lower power) of 34% at 1100 K hot zone temperature. A more advanced system called a flat plate system produces 2.4 W/1 and 30% efficiency at 1100 K. Further improvements are projected for these devices through the development of optimized porous electrodes or a potassium ion conducting sold electrolyte.

• OSTI ID: 5694503
• Report Number(s): CONF-910116--
• Conference Information: Journal Name: AIP Conference Proceedings (American Institute of Physics); (USA) Journal Volume: 217:1
• Country of Publication: United States
• Language: English

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