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CEC/ICMC 2025 Abstracts & Technical Program

18–22 May 2025
Peppermill Reno
US/Pacific timezone

Conference Management: Centennial Conferences

Session

C1Or2B - Non-Aerospace Cryocoolers II

19 May 2025, 11:15
Capri 2/3

Capri 2/3

Conveners

C1Or2B - Non-Aerospace Cryocoolers II

  • Santhosh Kumar Gandla (Sumitomo (SHI) Cryogenics of America Inc)
  • Bradley Moore (NASA/Jet Propulsion Lab)

Presentation materials

There are no materials yet.

  1. 77. C1Or2B-01: A dynamic simulation model for gas guided pistons in Stirling machines
    Bruce Fischer (Auckland University of Technology)
    19/05/2025, 11:15
    Contributed Oral

    Superconducting motors offer high power-to-weight or -to-volume ratios and are the natural choice for applications such as the electrification of heavy transport. A particular challenge is the cooling of the superconducting rotor coils. While one option is to use a stationary cryocooler and to provide the cooling via a gas circuit on the rotating side – which introduces other technical...

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  2. 420. C1Or2B-02: Improving energy efficiency and cryocooling performance through independent speed control of cryocoolers and compressors
    Dr Amy Kennedy (Oxford Cryosystems Ltd)
    19/05/2025, 11:30
    Contributed Oral

    Energy efficiency and reduced power consumption are critical for modern cryogenic systems. Gifford-McMahon (GM) cryocoolers provide an economical, cryogen-free solution across a broad range of temperatures, offering high energy efficiency, reliable long-term performance, and easy maintenance thanks to their simple mechanical design. Compact size and low vibration levels make them especially...

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  3. 290. C1Or2B-03: Exergy measurements between a 4 K pulse tube refrigerator and its compressor
    Dr Ryan Snodgrass (National Institute of Standards and Technology)
    19/05/2025, 11:45
    Contributed Oral

    At only about 1% of Carnot, the overall efficiency of 4 K, Gifford-McMahon cryocoolers and Gifford-McMahon type pulse tube refrigerators is not impressive. These refrigerators are most often studied from the perspective of minimizing losses in their regenerators and/or thermal buffer tubes, which are important topics, especially in the real-fluid regime where regenerator losses are very large....

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  4. 106. C1Or2B-04: Parasitic Heat Load Reduction of Cryocoolers
    Mr Wolfgang Stautner (GE HealthCare – Technology & Innovation Center (HTIC))
    19/05/2025, 12:00
    Contributed Oral

    With the further advance of cryogenic technology and high helium cost, more cryogenic environments are designed to be hermetically “sealed”, requiring a detailed understanding and analysis of parasitic heat fluxes crossing into a cryogenic environment. A thermal balance sheet therefore includes operational states but also needs to cover outages.
    One of the frequently underestimated heat...

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