1. Dan Schick M.S. Graduate Student Mechanical Engineering Room: 1335 ERB Hometown: Oconomowoc, WI
Thesis: Exploring the geometry and performance of cryocooler re-condenser designs.

2. Cryocooler Re-condensers
Cold tip
Used to re-condense stored cryogens for
Superconducting electromagnets: Particle accelerator magnets, MRI, motors, generators, etc.
Cryogen storage depots in space
Helium
Working fluid inside the cryocooler
Condensing fluid outside the cryocooler
Thermal resistance between cryocooler cold tip and surrounding helium gas causes inefficiency

3. 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.

4. Application
Re-condensing of helium used in cooling mechanisms of the SuperConducting Undulator (SCU) for the Advanced Proton Source (APS) at Argonne National Laboratory
SCU insertion device supplies high intensity X-rays to users of the APS