Development of a highly reliable helium refrigeration system - R & D of a highly reliable helium refrigeration system (oil-free type)

5Citations
Citations of this article
7Readers
Mendeley users who have this article in their library.

Abstract

The present paper reports the development of the highly reliable refrigeration system (three types), which is applied for 70 MW class superconducting generators. R & D of the oil-free turbo type: In the turbo type of advanced refrigeration system, a complete oil free 80 K cold compressor was developed. Moreover, the cold compressor driven by a coaxial turbine was developed to enhance the system efficiency and to save space. R&D of the oil-free screw type: In the oil-free screw rotors, taper rotors were planned to maintain a radial clearance between male and female rotors and the casing, to compensate their thermal deformation because of the heat of compression. Moreover, a seal technique was established that used a magnetic fluid and gas seals to prevent lubricating oil from bearings and the timing gear chamber into the rotor housing, under a higher rotational speed of 25,000 rpm. © 2002 Elsevier Science Ltd. All rights reserved.

Cite

CITATION STYLE

APA

Asakura, H., Saji, N., Yoshinaga, S., Ishizawa, T., Ikeuchi, M., Yanagi, H., … Kitagawa, K. (2002). Development of a highly reliable helium refrigeration system - R & D of a highly reliable helium refrigeration system (oil-free type). Cryogenics, 42(3–4), 203–208. https://doi.org/10.1016/S0011-2275(02)00030-9

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free