Cold Facts Digital – Page 63 – The go-to place for Cryogenics and Superconductivity

MagLab Awarded DOE Grant to Develop New SRF Cavities

The National High Magnetic Field Laboratory (MagLab, CSA CSM) is playing a role in a nationwide effort to make human-scale particle accelerators for a host of applications. And now, with a $1 million grant from the US Department of Energy, scientists at the lab's Applied Superconductivity Center (ASC) are developing...

Advancing Tissue Engineering with 3-D Cryoprinting

The importance of additive manufacturing (AM) and 3-D printing has increased in almost every field of engineering, including biomedical engineering, a field where researchers are advancing applications such as 3-D cryoprinting. The technology is poised to develop into an important step in tissue engineering as it can produce biological tissues...

NASA Awards Funding to Support Professional Development Programs for STEM Educators

NASA’s Glenn Research Center in Cleveland has awarded approximately $125,000 to schools and organizations to launch professional development programs for science, technology, engineering and math (STEM) educators. The award is intended to strengthen STEM programs for K-12 teachers across Ohio through the use of NASA content. The grant also includes...

Quantum Data Takes a Ride on Sound Waves

Yale scientists have created a device that uses sound waves to store quantum information and convert it from one form to another, all inside a single integrated chip. The device allows a superconducting artificial atom, or qubit, to exchange energy and quantum information with a high-frequency bulk acoustic wave resonator....

FCC and the Superconducting Magnets of the Future

Physicists at CERN are counting on new magnets, ones capable of generating fields of 16 Tesla or more, to increase the energy of its future circular colliders. To achieve these levels, researchers working on CERN's Future Circular Collider (FCC) study have developed a test station known as FRESCA2, a dipole...

Injecting New Life into the LHC

CERN launched the LHC Injectors Upgrade (LIU) project in 2010 to prepare its accelerator complex for the immense challenges of the HL-LHC. Now, in a report appearing in CERN Courier, engineers from the project have provided a status update. In addition to enabling the necessary proton and ion injector chains...

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...

Latest in Ask the Experts

Suppliers of regenerator materials

I was looking for suppliers of regenerator materials. Can you please provide a list of vendors for: • Lead spheres • Bronze screen discs • Rare earth materials and spheres Thank you in advance for any help you can provide.

Containing ice accumulation while recovering helium

We are implementing a system to recover helium from our Janis ST-500 continuous flow LHe cryostat. The recovery system uses standard 1/4″ plastic tubing, which we connect directly to the cryostat’s exhaust port. The problem with this setup is that the gas is still quite cold as it leaves the...

Looking for some advice regarding cryogenic modeling in ANSYS FEA software

I am looking for some advice regarding cryogenic modeling in ANSYS FEA software. I have been trying to use the Transient Thermal module, in workbench 14.5, to model the cooling of a device in a dilution fridge. I have approximate values for the cooling power of each plate in the...

Compensators and/or accumulators: Are they used in cryogenics?

Are compensators and/or accumulators, high or low pressure, used in cryogenics? Are they used in space?

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