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자료유형
학술저널
저자정보
D.P. Guillen (Idaho National Laboratory) P.J. McDaniel (Department of Chemical and Nuclear Engineering, University of New Mexico)
저널정보
한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제54권 제4호
발행연도
2022.4
수록면
1,482 - 1,494 (13page)
DOI
https://doi.org/10.1016/j.net.2021.10.010

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Power conversion cycles (Subcritical Steam, Supercritical Steam, Open Air Brayton, Recuperated AirBrayton, Combined Cycle, Closed Brayton Supercritical CO2 (sCO2), and Stirling) are evaluated for landbased nuclear microreactors based on technical maturity, system efficiency, size, cost and maintainability, safety implications, and siting considerations. Based upon these criteria, Air Brayton systems wereselected for further evaluation. A brief history of the development and applications of Brayton powersystems is given, followed by a description of how these thermal-to-electrical energy conversion systemsmight be integrated with a nuclear microreactor. Modeling is performed for optimized cycles operatingat 3 MW(e) with turbine inlet temperatures of 500 C, 650 C and 850 C, corresponding to: a) sodiumfast, b) molten salt or heat pipe, and c) helium or sodium thermal reactors, coupled with three types ofBrayton power conversion units (PCUs): 1) simple open-cycle gas turbine, 2) recuperated open-cycle gasturbine, and 3) recuperated and intercooled open-cycle gas turbine. Aeroderivative turboshaft enginesemploying the simple Brayton cycle and two industrial gas turbine engines employing recuperated airBrayton cycles are also analyzed. These engines offer mature technology that can facilitate near-termdeployment with a modest improvement in efficiency.

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