Roby named president of Praxair Asia
Anne Roby has been named president of Praxair Asia, where she will be responsible for industrial gases business in China, India, South Korea and Thailand.
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Ability Engineering receives National Board “R” Certificate of Authorization
Ability Engineering Technology, Inc. has received the National Board "R" Certificate of Authorization.
Fire breaks out in Soudan mine
Fermilab Today reported on March 21 that a mine shaft fire that began in the Soudan Underground Mine last Thursday now appears to be out, though officials are unsure whether detectors for the MINOS experiment and the Cryogenic Dark Matter Experiment were damaged.
Airgas introduces new IQF freezer in Boston
Airgas announced a new addition to its FreezeRight line of cryogenic freezers at the International Boston Seafood Show on March 21.
Ad Astra and NASA JSC sign support agreement
Ad Astra Rocket Company and NASA Johnson Space Center (JSC) signed a Support Agreement on March 2 to collaborate on tasks related to space-based cryogenic magnet operations and electric propulsion systems for Ad Astra's VASIMR(R) technology.
Varian to collaborate with Synopsis on TCAD models for cryogenic ion implantation
Varian Semiconductor Equipment Associates, Inc. will collaborate with Synopsis, a leader in software and IP for semiconductor design and manufacturing, to develop Technology CAD (TCAD) models for cryogenic ion implantation.
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Joule-Thomson Effect
The Joule-Thomson (JT) effect is a thermodynamic process that occurs when a fluid expands from high pressure to low pressure at constant enthalpy (an isenthalpic process). Such a process can be approximated in the real world by expanding a fluid from high pressure to low pressure across a valve. Under...
Current Leads
One of the challenges of using superconducting magnets is the connection of the magnet to a room temperature power supply. This is accomplished via current leads. The trick is that current leads should ideally have a low heat leak, since they connect room temperature to cryogenic temperature, while at the...
Multilayer Insulation
Multilayer insulation (also referred to as superinsulation) is a key component in the reduction of heat leak to cryogenic systems due to thermal radiation. MLI consists of a series of uncooled reflective surfaces placed in the vacuum space between two surfaces, one warmer than the other. Generally speaking, for ideal...
Air Separation and Liquefaction
by Nils Tellier, PE, President, EPSIM Corporation (CSA CSM) nils@epsim.us All illustrations courtesy EPSIM Corporation Background History of Air Separation and Liquefaction This section builds on a rich history of methods to develop deep refrigeration and cryogenic liquefaction during the 19th Century. You are encouraged to read Cryo Central’s History...
Bose-Einstein Condensate
A Bose-Einstein condensate, first proposed in 1925 by Albert Einstein based on work done by Satyendra Nath Bose (the same Bose from whom the term boson is derived), is a super-cold state of matter in which almost all of the individual atoms have “condensed” down to the lowest possible quantum...
Cold Technology for Pest Control
While it does not reach temperatures cold enough to be called cryogenic, carbon dioxide snow is at the heart of a new way of dealing with unwanted pests. It utilizes a quick freezing process that takes advantage of the properties of carbon dioxide snow and has a number of benefits...
Cryogenic Finishing
The following 3 articles discuss the uses and procedures of various type of cryogenic finishing. 1) By Robin A. Rhodes, Cryogenic Institute of New England, Inc. rrhodes@nitrofreeze.com Cryogenic Deflashing is employed to remove undesired residual mold flash that remains on molded parts after they are removed or ejected from the...
Looking for the thermal conductivity of the high density polyethylene (HDPE) between 1.9 and 10K
I am looking for the thermal conductivity of the high density polyethylene (HDPE) between 1.9 and 10K (or even up to higher temperatures). The best would be to have these data for the HDPE material which sold by the CERN shop, which has a density of 0.95 g/cm3. Pier Paolo...
What is "Alpha" cryogenic processing?
Can somebody please tell me what the “Alpha Cryogenic Process” is? How is it different from ordinary cryogenic processing? Bernd Ahne, HiFi-Tuning
Do Stirling coolers have any relation to Stirling engines?
I was just wondering, do Stirling coolers have any relation to Stirling engines?
What type of MLI should be used in LOX (VJ) lines and flex hoses?
I work for ASRC Aerospace at the Kennedy Space Center (KSC). We support NASA in ground support equipment (GSE) design. I have a question concerning the type of multilayer insulation (MLI) to use in LOX vacuum Jacketed (VJ) lines and flex hoses.