This project is a foray into the ultra cold. The goal here is to develop a small pulse cryocooler to reach temperatures of <60 Kelvin. Why do this? Because it’s cool.
Concept
Pulse cryocoolers are an interesting combination of acoustics and thermodynamics. With a pure oscillating pressure wave you can transfer energy from one side to another. There’s a variety of papers that I’ve utilized when designing:
- Thesis: https://core.ac.uk/download/pdf/37371098.pdf
- NIST Design approximation: https://trc.nist.gov/cryogenics/Papers/Pulse_Tube_Cryocoolers/2008-Approximate_Design_Method_for_PTR.pdf
- Low cost demonstrator: https://www.cryocooler.org/resources/Documents/C14/019.pdf
- Miniature cryocooler: https://cryocooler.org/resources/Documents/C21/157.pdf#page=1
- Overall great resource: https://cryocooler.org/
Design | In-Progress
Currently I have a CAD model developed of the apparatus. To do is to figure out the oscillator and simulation software.
Osi Van Dessel 