Praxair to help supply hydrogen during peak demand
An underground storage cavern integrated into Praxair's hydrogen pipeline will begin to supply hydrogen to customers during periods of planned and unplanned peak demand.
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Frozen tissue samples stored at the American Museum of Natural History
The American Museum of Natural History in New York City has been collecting and freezing tissue samples from fauna all over the world. These samples are stored in this five-year-old frozen tissue lab in vats kept below -150.
Pierre Auger Collaboration tops list of breakthrough stories for 2007
The Pierre Auger Collaboration correlation between active galactic nuclei and the highest energy rays that hit earth was on the top of the list of breakthrough stories for three national media organizations in 2007.
Aerojet completes testing of Reaction Control Engine
Aerojet has completed developmental testing of an innovative cryogenic oxygen/methane Reaction Control Engine (RCE).
ISRO begins testing cryogenic engines
The Indian Space Research Organization recently began testing cryogenic engines that were designed after the renegotiation of an agreement with Russia to purchase the engines. The engines use cryogenic fuels that are super-cooled to around -250.
EnFlow Cryogenics provides nitrogen and argon delivery alternative
EnFlow Cryogenics, available from Holox, targets Atlanta-area businesses seeking a nitrogen and argon supply delivery alternative to high pressure or liquid cylinders.
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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...
Eliminate negative effects of grinder burn on gear teeth?
Can you tell me if it is possible to eliminate the negative affects of grinder burn on gear teeth with the use of cryogenics?
Information about a process called “cryogenically stretch-formed ss”
I am remembering in the 1970’s when astronauts were walking on the moon and carried oxygen in 300 ss bottles inside LN2 tanks which were filled and pressurized.
Small cryo-gun for our health service clinic
I am Assistant Director for Environmental Health & Safety at a university health service clinic.
Additional sealing materials besides PTFE or glass filled PTFE
I am an engineer looking to improve our solenoid valve sealing on cryogenic medias. I was wondering if you knew of materials other then PTFE or glass filled PTFE that could be used for sealing.