Air Liquide announces new organization and leadership team in US
Air Liquide has announced a realignment of its executive management team in the US in conjunction with Air Liquide Group's recently introduced strategic organization and growth plan.
ADVERTISEMENT
European Commission and CERN support major research facility in the Middle East
The European Commission and CERN agreed on May 28 to support the construction of SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East), one of the most ambitious research facilities in the Middle East.
D-Wave Two quantum computer selected for NASA’s Ames Research Center
D-Wave Systems Inc., the world's first commercial quantum computing company, announced on May 16 that its new 512-qubit quantum computer, the D-Wave Two, will be installed at the new Quantum Artificial Intelligence Lab, a collaboration among NASA, Google and the Universities Space Research Association (USRA).
Tim Miller appointed INOXCVA President of US Operations
INOXCVA announced the appointment of Tim Miller as INOXCVA’s President for its US Operations, effective May 9, 2013. This appointment signals INOXCVA’s steps to strengthen the management and serve customers better through organized divisional structure.
Bestobell wins contract with LNG fuel system manufacturer
Bestobell Valves, part of the Sheffield-based President Engineering Group (PEGL), has become a preferred supplier to Wärtsilä Gas Power Systems (GPS), the Finland-headquartered global leader in gas power solutions for the marine and energy markets.
The James Webb Space Telescope—A Year of Significant Progress
The James Webb Space Telescope is an international collaboration between NASA, the European Space Agency (ESA), and the Canadian Space Agency (CSA). NASA Goddard Space Flight Center is managing the development effort. The main industrial partner is Northrop Grumman; the Space Telescope Science Institute will operate Webb after launch.
ADVERTISEMENT
Dilution Refrigerators
Dilution refrigerators are a common technique for reaching temperatures below 1K, particularly where continuous cooling at these temperatures is required. Helium exists in two stable isotopes: 4He and 3He. Naturally occurring 3He is extremely rare, constituting less than 1 part per million of helium gas. However, 3He can be manufactured,...
Oxygen Deficiency Hazards
Oxygen Deficiency Hazards (ODH) are a significant safety issue in cryogenic facilities. ODH occurs when inert gases such as nitrogen, helium or argon displace room air and thus lower the percentage of oxygen in the space below that required for human life. OSHA defines an area as oxygen deficient if...
Kelvin Temperature Scale
The Kelvin temperature scale is the principal temperature scale used in cryogenics and science. The kelvin is also one of the seven base units in the Système International d’Unités (SI) and is the unit of thermodynamic temperature. Thermodynamic temperature is a fundamental physical quantity (like mass, length or electrical current)...
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...
Wind Tunnels
Dr. Robert Kilgore The development of the cryogenic wind tunnel is one of many significant breakthroughs in both cryogenics and wind-tunnel technology made during the past millennium. Interest in the development of high-speed commercial and military aircraft resulted in a review of problems of flow simulation in transonic wind tunnels...
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?