Minimization of the tritium content within the first wall of a Tokamak reactor

摘要: The main objective of this numerical study is to investigate how minimize the tritium content in first wall a tokamak reactor. Mainly pulsed operation with 100-s cycle durations, 75-s duty times, and outgassing phases durations tau/sub g/ between 500 3000 s envisaged. These are started after every N/sub rho/ (20 < <70). For modeling, multicode applied that describes surface volume processes determining inventory permeation through wall, neutral gas background due recycling plasma, transport governing parameters three-species burning plasma. calculations show control temperature T/sub w/, determined by heat transfer coolant radiation loading decisive for buildup. Cooling achieved pressurized water or helium at pressure rho/sub HE/ = 30 bar. channels assumed be composed corrugated steel sheet both connected panel-type construction.