The Powder Toy

Cryogenic Refrigerator 4K by wisecase2

wisecase2
wisecase2
169 / 4
16th Aug 2021
16th Aug 2021
Coolant-based cryogenic refrigerator designed to reach a temperature of 0.04 kelvin (-273.11 C°). It takes approximately 15 minutes to reach the minimum temperature at 60 fps.
refrigerator rfgl refrigerant freezer rfrg cold coolant cryogenic water fast

Comments

  • dog2
    dog2     27th Oct 2023
    This is very good, I'm impressed by your use of heat exchangers
  • micque
    micque     17th Aug 2023
    well done! +1!
  • thepowderkeg
    thepowderkeg     12th May 2022
    GodOfChaos: is wisecase there name? or is it smt else
  • GodOfChaos
    GodOfChaos     2nd May 2022
    hey wisecase what about updating your mod to version 96.2
  • GodOfChaos
    GodOfChaos     2nd May 2022
    what about putting a ice cream sandwich in there
  • powdertoyguy1
    powdertoyguy1     28th Feb 2022
    it is exploding
  • ArolaunTech
    ArolaunTech     21st Jan 2022
    so, to make it colder, increase the efficiency of the second heat exchanger (that big long thing that takes up most of the space)
  • ArolaunTech
    ArolaunTech     21st Jan 2022
    Once the fluid comes out of the second heat exchanger, it meets the compressor and third heat exchanger. In the compressor, the RFRG turns into RFGL, heating to several hundred degrees in the process. The third heat exchanger and water cooler at the side of the refrigerator are used to cool down this RFGL to 20C, cool enough for the second heat exchanger to cool it down to -252C.
  • ArolaunTech
    ArolaunTech     21st Jan 2022
    However, due to how RFGL works, the fluid coming in to the expander needs to be colder than -252C in order to create such low temperatures in the expander. This is where the second heat exchanger comes in. The fluid coming out of the first heat exchanger is fairly cold, and the second heat exchanger uses this to cool down the fluid incoming to the expander, up to that -252C needed in the input to the expander to create the low temps in the sample area.
  • ArolaunTech
    ArolaunTech     21st Jan 2022
    How this works: This device consists of three heat exchangers (the piles of HEAC and PUMP), an expander, and a compressor. The first system, directly attached to the sample area, has the expander and first heat exchanger. The expander cools the RFGL to near absolute zero by reducing the pressure, and the heat exchanger takes heat from the sample area and puts it in the refrigerant, ready to be dumped.