Refrigeration Requirements of the LN2 Cryo-Cable

[+] Author and Article Information
P. Graneau

Underground Power Corp., Weston, Mass.

H. C. Parish

CVI Corporation, Columbus, Ohio

J. L. Smith

Massachusetts Institute of Technology, Cambridge, Mass.

J. Eng. Ind 93(4), 1161-1165 (Nov 01, 1971) (5 pages) doi:10.1115/1.3428056 History: Received July 10, 1969; Online July 15, 2010


The paper considers the smallest size refrigeration plant likely to be required for liquid nitrogen cooled electric power transmission lines. Nitrogen, neon, hydrogen, and helium cycles are compared and it is shown that a neon cycle has considerable potential. An outline is given of a practical plant utilizing the nitrogen cycle and mainly rotating machinery, all based on present-day technology. The advantages which evaporative cooling confers on the operation of LN2 cryo-cables are explained.

Copyright © 1971 by ASME
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