The Design and Analysis of Helium Turbine Expander Impeller with a Given All-Over-Controlled Vortex Distribution

LIU Xiaodong(刘晓东); FU Bao(付豹); ZHUANG Ming(庄明)

doi:10.1088/1009-0630/16/3/21

Plasma Science and Technology > 2014 > 16(3): 288-293. > DOI: 10.1088/1009-0630/16/3/21

LIU Xiaodong(刘晓东), FU Bao(付豹), ZHUANG Ming(庄明). The Design and Analysis of Helium Turbine Expander Impeller with a Given All-Over-Controlled Vortex Distribution[J]. Plasma Science and Technology, 2014, 16(3): 288-293. DOI: 10.1088/1009-0630/16/3/21

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The Design and Analysis of Helium Turbine Expander Impeller with a Given All-Over-Controlled Vortex Distribution

Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China

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Received Date: July 18, 2012

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Abstract

Abstract

To make the large-scale helium cryogenic system of fusion device EAST (experimen- tal advanced super-conducting tokamak) run stably, as the core part, the helium turbine expander must meet the requirement of refrigeration capacity. However, previous designs were based on one dimension flow to determine the average fluid parameters and geometric parameters of impeller cross-sections, so that it could not describe real physical processes in the internal flow of the tur- bine expander. Therefore, based on the inverse proposition of streamline curvature method in the context of quasi-three-dimensional flows, the all-over-controlled vortex concept was adopted to design the impeller under specified condition. The wrap angle of the impeller blade and the whole flow distribution on the meridian plane were obtained; meanwhile the performance of the designed impeller was analyzed. Thus a new design method is proposed here for the inverse proposition of the helium turbine expander impeller.
- helium turbine expander,
- streamline curvature method,
- meridian plane,
- all- over-controlled vortex,
- inverse proposition

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References (13)

References

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