The MITICA Neutral Beam Injector, under construction in Padua at Consorzio RFX, will be equipped with a large cryosorption pump (composed by two halves). The cryopump, installed inside the MITICA Beam Line Vessel, will be supplied by a dedicated cryogenic plant with gaseous Helium (GHe) at 80 K and super critical Helium (ScHe) at 4.6 K. The design proposal for MITICA cryogenic plant is described in this paper. The cryogenic plant is divided in two main closed circuits: the 4.6 K circuit and the 80 K circuit. The first one is supplied by a Helium refrigerator via a LHe control cryostat acting as a thermal buffer due to the variable pulsed heat loads expected during MITICA operation. The second circuit is supplied by an 80 K facility where the refrigeration power is given by liquid nitrogen (LN2). Due to the expected large LN2 consumptions, a Nitrogen refrigerator is foreseen to recover and re-liquefy the evaporated LN2.
|Publication status||Published - 2012|
|Event||12th International Institute of Refrigeration Conference on Cryogenics, CRYOGENICS 2012 - , Germany|
Duration: 1 Jan 2012 → …
|Conference||12th International Institute of Refrigeration Conference on Cryogenics, CRYOGENICS 2012|
|Period||1/1/12 → …|
All Science Journal Classification (ASJC) codes
- Control and Systems Engineering
- Electrical and Electronic Engineering
- Mechanical Engineering
- Condensed Matter Physics
Valente, M., Fellin, F., Haas, H., Hanke, S., Scannapiego, M., & Zaccaria, P. (2012). Design proposal for MITICA cryogenic plant. Paper presented at 12th International Institute of Refrigeration Conference on Cryogenics, CRYOGENICS 2012, Germany.