Air Liquide opens first public hydrogen filling station in Germany
In September, Air Liquide officially opened its first public hydrogen filling station for passenger cars in Germany, in the city of Düsseldorf.
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Air Products increases price of liquid and bulk gases in US
Effective October 1, 2012, or as contracts permit, Air Products will increase product pricing and monthly service charges for merchant customers in North America.
SLAC employees witness space shuttle flyover
The space shuttle Endeavour delighted SLAC employees and other northern California crowds on a final flight, atop a customized 747, to its resting place at the California Science Center in Los Angeles, where it will be on display as a museum exhibit.
Airgas to build new ASU in Chicago area
On September 20, Airgas, Inc. announced plans to build a new air separation unit (ASU) in the Chicago area in order to meet increasing demand for merchant gases in the region. The ASU, which will produce oxygen, nitrogen and argon, is expected to begin production in the fall of 2014.
October 7 is target launch date for resupply mission to ISS
NASA and SpaceX have announced October 7, 2012, as the target launch date for SpaceX's first resupply mission to the International Space Station (ISS). The launch of the Falcon 9 rocket and Dragon spacecraft is scheduled for 8:34 p.m. EDT from Cape Canaveral, Florida.
Norman Augustine to chair Fermilab director search committee
Norman R. Augustine, the retired chairman and chief executive officer of Lockheed Martin Corp., has agreed to chair the search committee for the new Director of Fermilab.
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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...
Food Processing
Cryogenics and Food The industrial gas industry provides a host of products and services related to food. The various gases have useful and sometimes fascinating applications in food industry. “The food industry is not a homogenous industry. The needs of customers processing hamburger vs. poultry vs. strawberries vs. seafood, for...
Primary Standards
Elie K. Track Hypres, Inc. elie@hypres.com http://www.hypres.com/ Primary standards involve the exact definition and realization of units of measurement for various quantities, time, length, mass, voltage, resistance, current, etc. International agreements based on the latest scientific knowledge define those units, and their realizations vary depending on the unit itself. For...
Shrink Fitting
Robin A. Rhodes Cryogenic Institute of New England, Inc. rrhodes@nitrofreeze.com Shrink fitting, (or “compression fitting” as it is sometimes called), is a method used to insert a pin or bushing into a housing or other assembly requiring an extremely tight tolerance fit. It can be used as an alternative to...
Telecommunications
From the Winter 2004 issue of Cold Facts magazine The recent M-Calc IV — 4th Industry Assessment workshop discussing military and commercial applications for low-cost cryocoolers, held in November in San Diego, highlighted progress being made in cryogenics as applied in telecommunications. The reliability and long lifetime of projects now...
An Issue of Pressure and Flow Rate in a Supply Tank
Please help solve this problem: A supply tank requires a vaporizer to generate sufficient pressure to pump stored fluid up into a vehicle or tank. The available head is limited as the tank level falls and it is important to minimize the system pressure drop to maintain the desired flow...
Using MLI on VJ Line Joints or Cryo Storage Tanks
When installing Multi Layer Insulation (MLI) blankets on VJ line joints or cryo storage tanks should they be wrapped and tied down tight or loose? These are usually pre-cut to size. Also should they have an access hole at the point of where the molecular sieve is installed to help...
Separated layers of ice over a pipe
I want to know that why there are different layers of ice over a pipe carrying a cryogenic fluid, each layer separated with clear marks / lines? What do these layers signify?