Fred Edeskuty honored by South High School as outstanding alumni
Former Cold Facts columnist on Safety, Fred Edeskuty was honored by his alma mater, South High School, for being an outstanding alumni.
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URA and the University of Chicago to bid for contract
Universities Research Association, Inc. (URA) and the University of Chicago have formed a partnership to bid for the US DOE contract to manage the Fermi National Accelerator Laboratory (Fermilab), home of the Tevatron, the word's highest energy particle accelerator and a CSA corporate sustaining member.
Dr. Sidney Yuan joins The Aerospace Corporation
CSA Board Member and co-founder of the Northern and Southern California Chapters Dr. Sidney Yuan has joined The Aerospace Corporation as Engineering Specialist, a job that he is pleased will include research assignments.
Applied Superconductivity Center to move to Tallahassee FL
The Applied Superconductivity Center (ASC) will move to Tallahassee FL and become a materials research division of Florida State University's (FSU) National High Magnetic Field Laboratory (NHMFL), a CSA corporate sustaining member.
ILC receives increase in budget submitted to Congress for FY07
The International Linear Collider received a 100% increase in the Administration's budget submitted to Congress for FY 2007, from $30M to $60M.
Linde becomes world’s largest provider of industrial gases
Linde has taken over BOC in a $14.4 billion deal that makes Linde the world's largest provider of industrial gases.
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Mixed Refrigerant Cycles
Most cryogenic refrigeration systems, both large scale systems and cryocoolers, use helium as a working fluid. There are a number of advantages to helium, not the least of which is that helium remains a fluid down to the lowest achievable temperatures. In order to freeze helium, pressures of over 20...
Fountain Pumps and He II Phase Separators
Helium II (He II), the second liquid phase of the 4He isotope described in this column in Cold Facts Spring 2010 (http://2csa.us/he2), can be modeled as consisting of two interpenetrating fluids. One, the superfluid component, has zero viscosity and entropy and the other, the normal fluid component, has nonzero viscosity...
Turboexpanders
A vital technology in the refrigerators and liquefiers described in Cold Facts Volume 31 Number 3 is that of turboexpanders. These devices are rotating machines in which the process fluid (e.g., helium) does work against the turboexpander while moving from high pressure to a lower pressure and thus is cooled....
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...
Manufacturer for a machine to liquefy natural gas or methane gas.
I’m in search of a company to manufacture a machine to liquefy natural gas or methane gas.
Need a plastic for diffuser on the magnet end of a LHe fill siphon
I am trying to select a plastic to be used as a diffuser on the magnet end of a LHe fill siphon. Can you recommend anything that will hold up at LHe temps? I have seen some and they look like HDPE or Polypropylene but I am not sure.
Thermal conductivity orthotropic properties from 300K up to 500K
I am looking for the thermal conductivity orthotropic properties from 300K up to 500K (or even higher, if available). “Cryocomp” provides orthotropic data on G-10 (Fill, Warp, Normal) only up to 300K.
Looking for heat conductivity values of CuCrZr in the low temperature range of 4 to 300K
I’m a student of physical engineering and I am looking for heat conductivity values of CuCrZr in the low temperature range of 4 to 300K. Jakub Voňka Brno University of Technology Faculty of Mechanical Engineering