From Randomdata
Jump to: navigation, search

Time to liquefy air! After finishing the NS Display I needed a new, different topic to work on, and this has been on the list for a while


To get the drop to cryogenic temperatures, we need a heat pump of sufficient capacity. Like common refrigerators, a pressure gradient corresponds to a corresponding temperature drop, but a pressure increase also corresponds to a temperature increase. To cool something we need to move the heat away, using a radiator. To reach even lower temperatures, the cold output can also be used as a coolant for the input in a regenerative design. This design is called the Joule-Thompson cooler, and it makes the system significantly more efficient.


  • Compressor: Yong Heng (generally used as an airsoft charger)
  • Oil: ISO 46 hydraulic oil for the compressor

more parts follow when ordered