Open AccessTHE COST OF HELIUM REFRIGERATORS AND COOLERS FOR SUPERCONDUCTING DEVICES AS A FUNCTION OF COOLING AT 4 K
Author(s) -
M. A. Green,
J. G. Weisend,
John Barclay,
Susan Breon,
Jonathan Demko,
Michael DiPirro,
J. Patrick Kelley,
Peter Kittel,
Arkadiy Klebaner,
Al Zeller,
Mark Zagarola,
Steven Van Sciver,
Andrew Rowe,
John Pfotenhauer,
Tom Peterson,
Jennifer Lock
Publication year - 2008
Publication title -
aip conference proceedings
Language(s) - English
Resource type - Conference proceedings
SCImago Journal Rank - 0.177
H-Index - 75
eISSN - 1551-7616
pISSN - 0094-243X
DOI - 10.1063/1.2908683
Subject(s) - carnot cycle , refrigeration , refrigerator car , cooling capacity , superconducting magnet , function (biology) , helium , thermodynamics , magnet , engineering , physics , mechanical engineering , atomic physics , evolutionary biology , biology
This paper is an update of papers written in 1991 and in 1997 by Rod Byrns and this author concerning estimating the cost of refrigeration for superconducting magnets and cavities. The actual costs of helium refrigerators and coolers (escalated to 2007 dollars) are plotted and compared to a correlation function. A correlation function between cost and refrigeration at 4.5 K is given. The capital cost of larger refrigerators (greater than 10 W at 4.5 K) is plotted as a function of 4.5-K cooling. The cost of small coolers is plotted as a function of refrigeration available at 4.2 K. A correlation function for estimating efficiency (percent of Carnot) of both types of refrigerators is also given.
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