Speaker
Sergey Vasilievich Mirnov
Description
See the full Abstract at http://ocs.ciemat.es/EPS2018ABS/pdf/P4.1031.pdf
45 EPS Conference on Plasma Physics 13069
Li solution of the steady-state problem of tokamak in the light of the last
experimental results
S.V.Mirnov1,3,4, A.S.Dzhurik1, A.T.Komov4,V.B.Lazarev1, I.E. Lyublinski2,3,
V.G.Otroshchenko1, A.N. Shcherbak1, A.N.Varava4, Ya. A.Vasina3, A.V.Vertkov2,
A.V.Zaharenkov4, M.Yu. Zharkov2
1
JSC “SSC RF TRINITI” 108 840RussiaМoscowTroitsk Dep. Pushkovih St 12,
2
JSC «Red Star», 113230, Russia, Moscow, Elektrolitny dr. 1A,
3
NRNU MEPhI, 115409, Russia, Moscow, Kashirskoe sh.,31,
4
NRU MPEI, 111250, Russia, Moscow, Krasnokasarmennaya St.,14
Recent experiments made on tokamak T-11M [1] for the purpose of full-scale simulation of
behavior of lithium, injected into the peripheral (SOL) region of tokamak for protection its first
wall from the direct plasma-contact, forced us to bring some correction in the temperature
operation limits of individual elements of a closed lithium circuit that implements this protection
in the steady-state mode of tokamak. Its main elements are presented in figure: the lithium emitter
and collector on the basis of capillary porous structure (CPS), the first wall with of Li-coated steel,
and the system of D,T recovery from the lithium stream.
It was found that the first wall of the steel chamber coated during discharge by lithium and heated
over 350-400oC reflects to the plasma cord almost the whole entire flow of H+ and D+ which falls
on the first wall. Thus the first wall can play role of a "mirror" in relation to both of them (and T
in future) and prevent their gradual accumulation in the chamber of the tokamak. It is proposed to
carry out the capture of D+ and T+, and its following removal from the camera by using of the
liquid Li surface of CPS collectors in the temperature range of 200-300°C. To control the
temperature of the collectors in the specified range assumed to apply both hot water and the
recently developed cooling method by the dispersed gas-water flow formed by the special spray
generator.
The work supported by RSF grant № 16-19-10457
[1] A.N.Shcherbak, S.V.Mirnov e.a. 44 EPS Conf. on Plasma Phys. (2017, Belfast), P5 112
