MHD (MAGNETO-HYDRODYNAMICS) IN LIQUID METALS IN FUSION REACTORS: EFFECTS ON TRITIUM TRANSPORT AND INVENTORY
Journal: International journal of ecosystems and ecology science (IJEES) (Vol.10, No. 1)Publication Date: 2020-03-20
Authors : Ciro Alberghi;
Page : 115-122
Keywords : DEMO; Liquid metal blanket; WCLL; MHD; Magneto-convection; buoyancy forces; Tritium transport;
Abstract
The Water Cooled Lithium Lead (WCLL) is one of the breeding blanket concepts proposed for DEMO reactor. The velocity field of the electrically conducting lead-lithium eutectic alloy inside the blanket is highly influenced by the external magnetic field used for plasma confinement, due to a magnetohydrodynamic (MHD) effect. In addition, strong temperature gradients give rise to buoyancy forces, that have a great impact on flow behavior. MHD and convection significantly influences the resulting temperature and velocity fields, and therefore tritium transport. A multi-physics approach of a 3D tritium transport model is presented for a simplified geometry of the WCLL breeding blanket. In particular, MHD, buoyancy forces, advection-diffusion of tritium into the lead-lithium eutectic alloy, transfer of tritium from the liquid interface towards the steel and diffusion of tritium inside the steel have been included in this study. Tritium permeation from PbLi to the baffle, tritium concentrations and inventories inside the lead-lithium and in the EUROFER baffle have been evaluated.
Other Latest Articles
- TRITIUM IN NUCLEAR FUSION SYSTEMS
- The Differences in the Use of Present Perfect and Simple Past between British and American English
- The Comfort Zone of Truth
- A Study on Auditory Comprehension Skills in Neurologically & Cognitively Healthy Individuals by Administering Auditory Comprehension Test in Hindi
- The Desi in Pardes: Diaspora and Identity in Bollywood's Productions
Last modified: 2020-02-02 01:16:09