The Application and Improvement of Helium Turbines in the EAST Cryogenic System
The helium cryogenic system supplies supercritical helium cooling capacity at 4.5 K for the superconducting magnets in the EAST superconducting tokamak.Four low-temperature helium turbines are used in the 2 kW helium refrigeration system,and their performance and reliability are critical for the con...
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| Veröffentlicht in: | Plasma science & technology 2014-05, Vol.16 (5), p.527-531, Article 527 |
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| creator | 付豹 张启勇 朱平 成安义 |
| description | The helium cryogenic system supplies supercritical helium cooling capacity at 4.5 K for the superconducting magnets in the EAST superconducting tokamak.Four low-temperature helium turbines are used in the 2 kW helium refrigeration system,and their performance and reliability are critical for the continuous operation of the tokamak.The turbines were made by the Helium Mechanics Company in Russia.The start-up process is very unstable,easily broken,and thus testing and improvements are needed.In this paper,we analyze the structure of the helium turbine,make improvements,and describe the testing process and results of the improved helium turbines.Some of the operational experiences during the start-up process and tests are also presented. |
| doi_str_mv | 10.1088/1009-0630/16/5/14 |
| format | Article |
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| ispartof | Plasma science & technology, 2014-05, Vol.16 (5), p.527-531, Article 527 |
| issn | 1009-0630 |
| language | eng |
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| source | IOP Publishing Journals |
| subjects | Cooling systems Helium Refrigeration Russia Superconducting magnets Superconductivity Tokamak devices Turbines |
| title | The Application and Improvement of Helium Turbines in the EAST Cryogenic System |
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