Water Trap Refrigerated by a Throttle-Cycle Cooler Using Mixed Gas Refrigerant

  • Ajay Khatri
  • M. Boiarski
  • S. Nesterov
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 43)


The design features and the performance of the cooler are discussed to emphasize characteristics of this refrigeration system compared to other cryocoolers used for water traps. A throttle-cycle cooler based on one-stage oil-lubricated compressor provides water trap temperature in a narrow range of 115 K to 130 K depending upon the heat load on the water trap surface.

The water trap surface connected with the cooler evaporator was configured to provide an optimal correlation between the nitrogen conductance and water trapping parameters. Ability to simulate the pumping performance, the properties of mixed gas refrigerants and systems performance combined with extensive experience in designing reliable coolers will make it possible to use this development in many other applications.


Heat Exchanger Refrigeration System Water Trap Exergy Analysis Exergy Efficiency 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Meissner, C.R., 1955, Liquid nitrogen Cold Traps, Review of Scientific Instrumentation, Vol.26, p. 305, American Institute of Physics, New York, NY.Google Scholar
  2. 2.
    K. Okumura, F. Kuriyama, Y. Murai, M. Tsujimura, H. Sobukawa; Evacuation Apparatus and Evacuation method, 1991, USA Patent 5,062,271.Google Scholar
  3. 3.
    Missimer, D.J., 1984, Fast-Cycle Pump Forecast: Cold & Dry, Photonics Spectra, The Optical Publishing Company, Pittsfield, MA.Google Scholar
  4. 4.
    Logsworth, R., Boiarski, M., Klusmier, L., 1995, 80 K Closed Throttle Cycle Refrigerator, Cryocoolers 8, Plenum Press NY, p.537.Google Scholar
  5. 5.
    Khatri, A., Boiarski, M.,1996, A Throttle Cycle Cryocooler Operating with Mixed Gas Refrigerants in 70 K to 120 K Temperature Range, Cryocoolers 9, Plenum Press NY.Google Scholar
  6. 6.
    Longsworth, R., 1996, Throttle Cycle Cryopumping System for Group I Gases, USA Patent Pending.Google Scholar
  7. 7.
    Brodyansky V.M., Sorin M.V. and LeGoff P., 1994, Exergy Analysis and Optimization, Elsevier, Amsterdam.Google Scholar
  8. 8.
    Bird, G.A., 1994, Molecular Gas Dynamics and the Direct Simulation of Gas Flows, Oxford.Google Scholar

Copyright information

© Springer Science+Business Media New York 1998

Authors and Affiliations

  • Ajay Khatri
    • 1
  • M. Boiarski
    • 1
  • S. Nesterov
    • 2
  1. 1.APD Cryogenics, Inc.AllentownUSA
  2. 2.Moscow Power Engineering InstituteMoscowRussia

Personalised recommendations