The water-lithium lead interaction implies a direct energy release, which leads to temperature and pressure increase, due to a combined thermal and chemical reaction, and an indirect form of energy release, the hydrogen production, due to secondary chemical reaction involving the initial reaction products. Review and understanding of the knowledge acquired in past studies, experimental works and numerical activities are needed in view of the renewed interest in the Water Cooled Lithium Lead blanket concept and safety issues connected with the fusion reactor design. This paper presents a review of the studies carried out in the past to characterize the potential safety concerns associated with the use of water and lithium-lead eutectic alloy and the main experimental campaign. As results, no code was found able to perform a satisfactory post-test analyses of separate effect experiments without engineering assumptions. Therefore, correlations that model the exothermic reaction and hydrogen production, and the availability of experimental data with more controlled initial and boundary conditions are needed for solving the WCLL blanket safety issues associated with the water-LiPb interaction.
Water-LiPb interaction study
EBOLI, MARICA;Pesetti A.;FORGIONE, NICOLA;
2014-01-01
Abstract
The water-lithium lead interaction implies a direct energy release, which leads to temperature and pressure increase, due to a combined thermal and chemical reaction, and an indirect form of energy release, the hydrogen production, due to secondary chemical reaction involving the initial reaction products. Review and understanding of the knowledge acquired in past studies, experimental works and numerical activities are needed in view of the renewed interest in the Water Cooled Lithium Lead blanket concept and safety issues connected with the fusion reactor design. This paper presents a review of the studies carried out in the past to characterize the potential safety concerns associated with the use of water and lithium-lead eutectic alloy and the main experimental campaign. As results, no code was found able to perform a satisfactory post-test analyses of separate effect experiments without engineering assumptions. Therefore, correlations that model the exothermic reaction and hydrogen production, and the availability of experimental data with more controlled initial and boundary conditions are needed for solving the WCLL blanket safety issues associated with the water-LiPb interaction.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
