Performance test results of cryogenic pump system for Demonstration Poloidal Coil

Author

Tada, E. ; Hiyama, T. ; Kawano, K. ; Hoshino, M. ; Yamamura, H. ; Sato, M. ; Kato, T. ; Shimamoto, S.

Author_Institution

JAERI, Ibaraki, Japan

Volume

24

Issue

2

fYear

1988

fDate

3/1/1988 12:00:00 AM

Firstpage

1003

Lastpage

1006

Abstract

The system, composed of a circulation pump and a cold compressor, is designed to produce supercritical helium with a mass flow rate of 350 g/sec at 10 bar below 4 K in normal operation. The circulation pump uses a reciprocating-pump design with double-acting bellows. The cold compressor uses a centrifugal compressor design with dynamic gas bearings. In performance tests using real cryogenic pumps for the Japan Atomic Energy Research Institute Demonstration Poloidal Coil program, it was found that the measured maximum flow rate is around 680 g/sec at a pressure head of 1.1 bar with adiabatic compression efficiency of more than 60%.

Keywords

cryogenics; fusion reactor theory and design; pumps; superconducting magnets; Demonstration Poloidal Coil; adiabatic compression efficiency; centrifugal compressor design; circulation pump; cold compressor; cryogenic pump system; double-acting bellows; dynamic gas bearings; performance tests; reciprocating-pump design; Bellows; Cooling; Cryogenics; Fusion reactor design; Helium; Inductors; Superconducting coils; System testing; Vacuum systems; Voltage;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.11397

Filename

11397