Experimental study and analysis of EAST cryogenic system under pulsed heat loads

  • L. Qiu
  • , Q. Zhang
  • , Z. Zhou
  • , L. Hu
  • , J. Li

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Cryogenics behaviour of supercritical helium (SHe) in the cooling circuit of the superconducting magnets caused by up to 1 MA plasma current and 100 s plasma discharges in EAST tokamak are studied. Higher plasma current and longer plasma durations take greater impact to the cooling circuit and cryogenic distribution system. 250 kA, 100 s plasma discharges took greater impact compared with 1 MA, 5 s plasma discharges to the helium cryogenic system at previous 7 experiment results. Generating, transferring, absorption process of pulsed heat turbulence of EAST cryogenic system is analyzed. Impacts to EAST cryogenic system including helium refrigerator and cryogenic distribution system due to continuous 100 s long pulse plasma discharges are studied. Smoothed methods of pulsed heat loads using liquid helium (LHe) buffer tank are analyzed based on the simulation results.

Original languageEnglish
Title of host publication13th CRYOGENICS 2014 - IIR International Conference, Proceedings
PublisherInternational Institute of Refrigeration
Pages47-52
Number of pages6
ISBN (Print)9782362150029
StatePublished - 2014
Event13th International Institute of Refrigeration Conference on Cryogenics, CRYOGENICS 2014 - Prague, Czech Republic
Duration: 7 Apr 201411 Apr 2014

Publication series

NameRefrigeration Science and Technology
ISSN (Print)0151-1637

Conference

Conference13th International Institute of Refrigeration Conference on Cryogenics, CRYOGENICS 2014
Country/TerritoryCzech Republic
CityPrague
Period7/04/1411/04/14

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