NASA Plum Brook builds world’s largest vacuum chamber
The world's largest vacuum chamber has been built by NASA Plum Brook.
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W. Vincent Liu wins Outstanding Young Researcher Award
W. Vincent Liu, Assistant Professor of Physics and Astronomy at the University of Pittsburgh, is the winner of the 2007 Outstanding Young Researcher Award of the Overseas Chinese Physics Association.
Dr. Steven Van Sciver named CSA fellow
Dr. Steven Van Sciver, the John Gorrie Professor of Mechanical Engineering at the Florida A&M University-Florida State University College of Engineering and a founding member of the National High Magnetic Field Laboratory, became just the fifth member of the Cryogenic Society of America to be named a fellow.
Larbalestier receives Lifetime Achievement Award
Dr. David Larbalestier, Director of Florida State University's Applied Superconductivity Center, received the Lifetime Achievement Award from the International Cryogenic Materials Conference (ICMC) on July 17 in Chattanooga.
Dr. Lucio Rossi receives IEEE Council on Superconductivity Award
The prestigious IEEE Council on Superconductivity award for continuing and significant contributions in the field of applied superconductivity was awarded to Dr. Lucio Rossi of CERN for his "significant and sustained contributions" on large scale applications.
Art Francis, long-time CSA member, dies
We are sorry to report the death of Art Francis, an expert in Helium, and long-time member of the Cryogenic Society of America.
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Two-Phase Flows
Two-phase flows are those flows in which there is a mixture of two physical states (solid, liquid or vapor). In cryogenic applications, such flows are almost always a mixture of a cryogenic liquid along with its corresponding vapor. A mixture of liquid helium and helium vapor would be a typical...
Supercritical Fluids
A supercritical fluid is defined as a substance whose temperature and pressure exceed those of its critical point. Every pure substance has a critical point that is defined in thermodynamic space by a critical temperature and a corresponding critical pressure. For example, the critical point for helium has a critical...
Brayton Cycle
The Brayton cycle is one of the many thermodynamic cycles used to generate cooling at cryogenic temperatures. Strictly speaking, when referring to cooling we should call this the reverse Brayton cycle as the original Brayton cycle describes the process of power generation or propulsion via a gas turbine. In many...
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.