Cryogenics - T-Square

petnamelessUrban and Civil

Nov 15, 2013 (3 years and 8 months ago)

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Cryogentic
Refrigeration(Freezing)

Andrew
Willenborg

Cryogenics



“The production of freezing cold”



Below 123 K



After refrigeration



Originally the process



Behavior of Materials



Substances used:



Liquid nitrogen



Liquid helium



Carbon dioxide



More resistance to wear



Stronger and more durable



Preservation of organic materials




NASA

Lightweight, High Efficiency Cryocooler


Interested in space applications


Advanced Cryogenic Fluid
Management technology


Propulsion systems


Liquid hydrogen


Zero boil off


Liquid hydrogen at 20 K


High efficiency and reliability


Nov 18, two cryofreezers sent to
ISS


Biological research



Cryogenic Devices

Stirling Cryocooler


Works in
reverse as a heat pump

Cryo
-
Torr cryogenic pump


Transport of liquid

Other cryogenic topics


Cryogenic compressor


High pressure helium


Cryogenic hardening


Martensite


Cryogenic deflashing


Remove mold flash


Superconductors


Zero resistivity


Conservation biology


Freeze animals


Cryonics


The freezing of people


Must be pronounced dead


Ted Williams

References


http://www.boc
-
gases.com/products_and_services/by_process/cryogenic_chilling_and_freezi
ng.asp



http://en.wikipedia.org/wiki/Cryogenics



http://www.nasa.gov/centers/ames/research/technology
-
onepagers/cryogenic
-
fluid
-
management.html



http://www.youtube.com/watch?v=Vhy5kwLmKdQ


http://www.youtube.com/watch?v=bCVLe_fUbpQ