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RESEARCH PRODUCT

Potential and limits of water-cooled Pb–17Li blankets and divertors for a fusion power plant

Yves PoitevinGiuseppe VellaA. Li PumaL BarleonJ.-f. SalavyL. GiancarliO.v OgorodnikovaM.a FüttererJ. Szczepanski

subject

Mechanical EngineeringNuclear engineeringDivertorFusion powerBlanketNuclear reactorCoolantlaw.inventionNuclear Energy and EngineeringlawWater coolingEnvironmental scienceGeneral Materials ScienceCost of electricity by sourceCivil and Structural EngineeringPower density

description

Abstract Blankets and divertors are key components of a fusion power plant. They have a large impact on the overall plant design, its performance and availability, and on the cost of electricity. The water-cooled Pb–17Li (WCLL) blanket uses reduced activation ferritic–martensitic steel as structural material. It was previously validated under numerous aspects such as TBR, mechanical and thermo-mechanical stability, thermal–hydraulics, MHD, safety and others. This was done assuming the specifications for a European DEMOnstration reactor which were fixed back in 1989. A WCLL blanket would best be combined with a water-cooled divertor so that a single coolant could be used for the entire reactor. Several divertor designs were proposed recently. This paper investigates the applicability of the WCLL blanket concept and a water-cooled divertor in attractive power reactors with increased power densities compared with DEMO.

https://doi.org/10.1016/s0920-3796(00)00276-3