Among the different methods of pellet injection for Tokamak refueling, the two-stage gun is presently the most suitable for pellet speeds over 2000 m/s, but for continuous operation two main problems are to be solved: wear of the pistons and plasma contamination by the propulsion gas. An experimental program is under way with the CNPM two-stage gas gun aimed at the solution of these problems. Different piston geometries and materials have been tested. Moreover, a fast valve has been installed at the exit of the launch barrel, in order to minimize the propellant gas flow. Results of the tests are presented.
Experiments with the CNPM gas gun for minimizing piston wear and propellant gas flow
Carlevaro R;Riva G;Daminelli G
1993
Abstract
Among the different methods of pellet injection for Tokamak refueling, the two-stage gun is presently the most suitable for pellet speeds over 2000 m/s, but for continuous operation two main problems are to be solved: wear of the pistons and plasma contamination by the propulsion gas. An experimental program is under way with the CNPM two-stage gas gun aimed at the solution of these problems. Different piston geometries and materials have been tested. Moreover, a fast valve has been installed at the exit of the launch barrel, in order to minimize the propellant gas flow. Results of the tests are presented.File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
