The Cost of Helium Refrigerators and Coolers for SuperconductingDevices as a Function of Cooling at 4 K

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This paper is an update of papers written in 1991 and in1997 by Rod Byrns and this author concerning estimating the cost ofrefrigeration for superconducting magnets and cavities. The actual costsof helium refrigerators and coolers (escalated to 2007 dollars) areplotted and compared to a correlation function. A correlation functionbetween cost and refrigeration at 4.5 K is given. The capital cost oflarger refrigerators (greater than 10 W at 4.5 K) is plotted as afunction of 4.5-K cooling. The cost of small coolers is plotted as afunction of refrigeration available at 4.2 K. A correlation function forestimating efficiency (percent of Carnot) of ... continued below

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Green, Michael A. August 27, 2007.

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This paper is an update of papers written in 1991 and in1997 by Rod Byrns and this author concerning estimating the cost ofrefrigeration for superconducting magnets and cavities. The actual costsof helium refrigerators and coolers (escalated to 2007 dollars) areplotted and compared to a correlation function. A correlation functionbetween cost and refrigeration at 4.5 K is given. The capital cost oflarger refrigerators (greater than 10 W at 4.5 K) is plotted as afunction of 4.5-K cooling. The cost of small coolers is plotted as afunction of refrigeration available at 4.2 K. A correlation function forestimating efficiency (percent of Carnot) of both types of refrigeratorsis also given.

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  • Cryogenic Engineering Conference, Chatanooga, TN,21 - 25 July 2007

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  • Report No.: LBNL--63506
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 928493
  • Archival Resource Key: ark:/67531/metadc900530

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  • August 27, 2007

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  • Sept. 27, 2016, 1:39 a.m.

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  • Nov. 18, 2016, 4:32 p.m.

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Green, Michael A. The Cost of Helium Refrigerators and Coolers for SuperconductingDevices as a Function of Cooling at 4 K, article, August 27, 2007; (digital.library.unt.edu/ark:/67531/metadc900530/: accessed November 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.