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New superheavy element 118 discovered

On Oct. 16, researchers from the U.S. Department of Energy's Lawrence Livermore National Laboratory in California and from the Joint Institute for Nuclear Research in Russia announced they discovered a new superheavy element: element 118, reported Science Daily.

Dennis H. Reilley to retire as CEO of Praxair

Dennis H. Reilley, chairman and CEO of Praxair, will retire as CEO at the end of 2006.

U of C to continue operating Argonne

The University of Chicago won a five-year contract on July 31 to continue operating Argonne National Laboratory, ending a process that threatened to damage the university's stature as a world-class research operation.

Air Liquide DTA names Adamo Screnci Commercial Director

CSA Corporate Sustaining Member Air Liquide DTA has named Adamo Screnci Commercial Director.

Linde introduces mobile hydrogen refueling unit

Linde created a mobile hydrogen refueling unit with which it is possible to refuel both with liquid hydrogen and gaseous hydrogen completely autonomous.

John Miller accepts new position at ORNL

John Miller, former director of Magnet Science and Technology (MS&T) at the National High Magnetic Field Laboratory (NHMFL), has accepted the position of magnet system team leader at the Oak Ridge National Laboratory, starting at the end of June. Both labs are CSA Corporate Sustaining Members. Mark Bird has now...

Latest in Defining Cryogenics

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....

Latest in Cryo Central

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...

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