Simulating the Tevatron Liquid Helium Satellite Refrigerators
A computer program to simulate the Fermilab Tevatron liquid helium satellite refrigeration system has been developed. The simulator program takes advantage of the Macintosh platform upon which it was developed to produce a unique, easy to use Macintosh interface to facilitate ease of cycle design and modification. The user can drag icons representing refrigerator components around on the screen and piece them together to form a variety of liquid helium refrigeration cycle configurations. Extensive use of the icons, windows, and pull-down menus of the Macintosh interface allows the user to easily alter refrigeration component configurations and parameters. Calculation accuracy is retained by using existing helium property subroutines and component models. The user interface, program output, and code details are described. Sample configurations and results are presented.
KeywordsEntropy Enthalpy Helium Boulder Refrigeration
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- 1.J. C. Theilacker, Current operating experience and upgrade plans of the Tevatron cryogenic system, “Advances in Cryogenic Engineering,” Vol. 35B, Plenum Press, New York (1990), p. 917.Google Scholar
- 2.J. D. Fuerst, Trial operation of cold compressors in the Fermilab satellite refrigerators, “Advances in Cryogenic Engineering,” Vol. 35B, Plenum Press, New York (1990), p. 1023.Google Scholar
- 3.H. R. Barton, Jr., J. E. Nicholls, and G. T. Mulholland, Simulation of the Energy Saver refrigeration system, “Advances in Cryogenic Engineering,” Vol. 27 Plenum Press, New York (1982), p. 541.Google Scholar
- 4.V. D. Arp and R. D. McCarty, “Thermophysical Properties of Helium-4 from 0.8 to 1500 K with Pressures to 2000 MPa,” NIST Technical Note 1334, U.S. Dept. of Commerce/National Institute of Standards and Technology, Boulder, Colorado (1989).Google Scholar
- 5.W. M. Soyars, The applicability of constant property analyses in cryogenic helium heat exchangers, “Advances in Cryogenic Engineering,” Vol. 37A, Plenum Press, New York (1991), p. 217.Google Scholar
- 6.W. M. Soyars, Exergy analysis of Tevatron liquid helium satellite refrigerator upgrade, “Advances in Cryogenic Engineering,” Vol. 37A, Plenum Press, New York (1991), p. 661.Google Scholar