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Recuperated versus single-recuperator re-compressed supercritical CO2 Brayton power cycles for DEMO fusion reactor based on dual coolant lithium lead blanket

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10.1016/j.energy.2017.08.105
 
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hdl:2117/110917

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Linares, José Ignacio
Cantizano González, Alexis
Arenas, Eva
Moratilla, Beatriz Y.
Martin Palacios, Victor
Batet Miracle, LluísMés informacióMés informacióMés informació
Document typeArticle
Defense date2017-12-01
Rights accessOpen Access
Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
Abstract
The EUROfusion research program is currently exploring alternative solutions for a future fusion power plant with DEMO (DEMOnstration Power Plant) prototype. One of the most important issues arising from a dual coolant lithium lead blanket-based reactor is the correct integration of the four thermal sources in order to achieve the highest electricity production. This study analyses the technical feasibility of supercritical CO2 Brayton power cycles. Starting with a classical re-compressed cycle, which is taken as the baseline case, two alternative proposals are investigated. On the one hand, a modified re-compressed layout with only one recuperator is studied, and is found to achieve the same electric efficiency as that of the baseline case (34.6%). On the other hand, an optimised recuperated layout is proposed, which achieves a 33.6% electric efficiency. A parametric study is conducted in order to optimise the heat exchanger size. When the re-compressed layout is optimised, a loss of efficiency (5%) is experienced. In the case of the recuperated layout optimisation the efficiency loss is reduced to 3%, achieving a reduction in heat exchanger size of 2/3.
CitationLinares, J.I., Cantizano González, A., Arenas, E., Moratilla, B., Martin, V., Batet, L. Recuperated versus single-recuperator re-compressed supercritical CO2 Brayton power cycles for DEMO fusion reactor based on dual coolant lithium lead blanket. "Energy", 1 Desembre 2017, vol. 140, núm. Part 1, p. 307-317. 
URIhttp://hdl.handle.net/2117/110917
DOI10.1016/j.energy.2017.08.105
ISSN0360-5442
Publisher versionhttp://www.sciencedirect.com/science/article/pii/S0360544217314810?via%3Dihub
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  • Departament de Física - Articles de revista [1.714]
  • ANT - Advanced Nuclear Technologies Research Group - Articles de revista [113]
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