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DOI: 10.5445/IR/1000079265
DOI: 10.1088/1757-899X/278/1/012160

Experimental investigation on charcoal adsorption for cryogenic pump application

Scannapiego, Matthieu; Day, Christian

Fusion reactors are generating energy by nuclear fusion between deuterium and tritium. In order to evacuate the high gas throughputs from the plasma exhaust, large pumping speed systems are required. Within the European Fusion Programme, the Karlsruhe Institute of Technology (KIT) has taken the lead to design a three-stage cryogenic pump that can provide a separation function of hydrogen isotopes from the remaining gases; hence limiting the tritium inventory in the machine. A primary input parameter for the detailed design of a cryopump is the sticking coefficient between the gas and the pumping surface. For this purpose, the so-called TIMO open panel pump experiment was conducted in the TIMO-2 test facility at KIT in order to measure pumping speeds on an activated carbon surface cooled at temperatures between 6 K and 22 K, for various pure gases and gas mixtures, under fusion relevant gas flow conditions, and for two different geometrical pump configurations. The influences of the panel temperature, the gas throughput and the intake gas temperature on the pumping speed have been characterized, providing valuable qualitative results ... mehr

Zugehörige Institution(en) am KIT Institut für Technische Physik (ITEP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2017
Sprache Englisch
Identifikator ISSN: 1757-8981, 1757-899X
URN: urn:nbn:de:swb:90-792657
KITopen ID: 1000079265
HGF-Programm 31.03.01; LK 01
Erschienen in IOP conference series / Materials science and engineering
Band 278
Seiten 012160
Bemerkung zur Veröffentlichung CEC/ICMC 2017 Conference, Madison, WI, July 9-13, 2017
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