Dan Schick M.S. Graduate Student Mechanical Engineering Room: 1335 ERB Email: [e-mail] Hometown: Oconomowoc, WI

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Dan SchickM.S. Graduate StudentMechanical
EngineeringRoom 1335 ERBEmail
dschick_at_wisc.eduHometown Oconomowoc, WI

• Thesis Exploring the geometry and performance of
  cryocooler re-condenser designs.

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Cryocooler Re-condensers

• Used to re-condense stored cryogens for
• Superconducting electromagnets Particle
  accelerator magnets, MRI, motors, generators,
  etc.
• Cryogen storage depots in space
• Helium is the working fluid inside the
  cryocooler, and the condensing fluid outside the
  cryocooler
• Thermal resistance between cryocooler cold tip
  and the surrounding helium gas causes inefficiency

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Re-condenser Optimization

• Project goals
• Minimize thermal resistance
• Optimize condensation rate
• Geometry and extensions
• Determine appropriate geometry to adequately move
  condensed gas to liquid phase
• Investigate influence of surface preparation
• Extend condensing surface into the saturated bath?

vs.