Time-dependent BASE performance and power degradation in AMTEC

Lodhi, M. A. K.; Vijayaraghavan, Prasanna; Daloglu, Ayse T.

doi:10.1016/s0378-7753(00)00537-1

Cited by 21 publications

(8 citation statements)

References 24 publications

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“…The variation in the BASE thickness, however, makes the improvement significantly high. This supports the previously established role of the BASE with respect to the AMTEC performance that its degradation or improvement depends primarily on the BASE [9].…”

Section: Summary and Concluding Remarkssupporting

confidence: 89%

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Optimization of power of alkali metal thermo electric convertor

Lodhi

Ahmad²

2015

Journal of Power Sources

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Section: Summary and Concluding Remarkssupporting

confidence: 89%

“…The bêta" alumina solid electrolyte (BASE) is primarily responsible for the power degradation. The role of electrodes is insignificantly small compared to that of the BASE [9].…”

Section: Introductionmentioning

confidence: 95%

Optimization of power of alkali metal thermo electric convertor

Lodhi

Ahmad²

2015

Journal of Power Sources

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“…The BASE is the main source of power degradation, estimated up to 76% from the total loss, while the losses in the electrode can reach up to 20%, as estimated in [13]. The sources of power degradation can be divided into issues related to the BASE, to the electrode and issues related to sodium.…”

Section: Pending Issuesmentioning

confidence: 99%

Direct energy conversion using liquid metals

Onea

Ramos

Hering

et al. 2014

EPJ Web of Conferences

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Abstract. Liquid metals have excellent properties to be used as heat transport fluids due to their high thermal conductivity and their wide applicable temperature range. The latter issue can be used to go beyond limitations of existing thermal solar energy systems. Furthermore, the direct energy converter Alkali Metal Thermo Electric Converter (AMTEC) can be used to make intangible areas of energy conversion suitable for a wide range of applications. One objective is to investigate AMTEC as a complementary cycle for the next generation of concentrating solar power (CSP) systems. The experimental research taking place in the Karlsruhe Institute of Technology (KIT) is focused on the construction of a flexible AMTEC test facility, development, test and improvement of liquid-anode and vapor-anode AMTEC devices as well as the coupling of the AMTEC cold side to the heat storage tank proposed for the CSP system. Within this project, the investigations foreseen will focus on the analyses of BASE-metal interface, electrode materials and deposition techniques, corrosion and erosion of materials brought in contact with high temperature sodium. This prototype demonstrator is planned to be integrated in the KArlsruhe SOdium LAboratory (KASOLA), a flexible closed mid-size sodium loop, completely in-house designed, presently under construction at the Institute for Neutron Physics and Reactor Technology (INR) within KIT.

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“…As for the AMTEC lifetime, an experimental result showed that the efficiency of AMTEC operated at 927 C decreased by approximately 50% after 18,000-hours of operation. 20) However, the AMTEC lifetime strongly relates to AMTEC operation temperatures, and a lower operation temperature provides a longer lifetime. The efficiency degradation of the proposed AMTEC at 500 C is negligible since the electricoutput degradation of a molybdenum electrode after 15 years of operation was experimentally evaluated to be 6.5% at 777 C. 21) Electric production using strontium might help to introduce the separation of strontium and cesium from high-level waste.…”

Section: Applicationsmentioning

confidence: 99%

A Thermoelectric-Conversion Power Supply System Using a Strontium Heat Source of High-Level Radioactive Nuclear Waste

Chikazawa

2011

Journal of Nuclear Science and Technology

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A thermoelectric-conversion power supply system with radioactive strontium in high-level radioactive waste has been proposed. A combination of Alkali Metal Thermo-Electric Conversion (AMTEC) and a strontium fluoride heat source can provide a compact and long-lived power supply system. A heat source design with strontium fluoride pin bundles with Hastelloy cladding and intermediate copper has been proposed. This design has taken heat transportation into consideration, and, in this regard, the feasibility has been confirmed by a three-dimensional thermal analysis using Star-CD code. This power supply system with an electric output of 1 MW can be arranged in a space of 50 m 2 and approximately 1.1 m height and can be operated for 15 years without refueling. This compact and long-lived power supply is suitable for powering sources for remote places and middle-sized ships. From the viewpoint of geological disposal of high-level waste, the proposed power supply system provides a financial base for strontiumcesium partitioning. That is, a combination of minor-actinide recycling and strontium-cesium partitioning can eliminate a large part of decay heat in high-level waste and thus can save much space for geological disposal.

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Time-dependent BASE performance and power degradation in AMTEC

Cited by 21 publications

References 24 publications

Optimization of power of alkali metal thermo electric convertor

Optimization of power of alkali metal thermo electric convertor

Direct energy conversion using liquid metals

A Thermoelectric-Conversion Power Supply System Using a Strontium Heat Source of High-Level Radioactive Nuclear Waste

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