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

SCAI Announces Collaboration Agreement with SynSysCo

Sumitomo (SHI) Cryogenics of America, Inc. (SCAI), a CSA CSM, has announced a joint collaboration with Synergy Systems Corp (SynSysCo) for the distribution and service of Sumitomo’s Marathon® CP Cryopumps across North America.

Titan Shines Light on High-Temperature Superconductor Pathway

Scientists from the US Department of Energy's (DOE's) Oak Ridge National Laboratory (ORNL) (CSA CSM) have identified an alternative route to superconducting for copper oxides, or cuprates, in the pseudogap phase, an in-between phase before superconductivity in which cuprates exhibit both insulating and conducting properties.

Remembering Helen Edwards

Helen Edwards, distinguished and highly regarded scientist at Fermi National Accelerator Laboratory (CSA CSM), died on June 21 at the age of 80. Edwards was the leader in the design, construction, commissioning and operation of the Tevatron collider. In recent years she made significant contributions to the development of high-gradient,...

Brookhaven Powers Magnet Idle for Eight Years

A team of physicists and engineers at the US Department of Energy’s Brookhaven National Laboratory has completed preliminary tests of a 20-ton cylindrical magnet that could form the heart of an upgraded particle detector at the Relativistic Heavy Ion Collider (RHIC). The goal was to see if the superconducting solenoid...

Cryogenic Systems, from LHC to FCC

The Large Hadron Collider (LHC) features one of the largest cryogenic systems in the world. Cryogenics plays an indispensable role in applied superconductivity, and the development of cryogenics for accelerators has allowed researchers to efficiently cool both the high-field magnets presently used at the LHC and also those being developed...

Zika Fear Heats Up, Cure Sought in Cold

North America is welcoming summer and with it the increased fear of a pronounced expansion of Zika from its southern neighbors. In April, the US Centers for Disease Control and Prevention (CDC) held a summit to formulate an action plan against the virus and shortly thereafter began issuing statements, including...

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

Cryogenics in Space

Peter Kittel University of California-Berkeley pkittel@cal.berkeley.edu Space Cryogenics is the application of cryogenics to space missions. These applications fall into two broad areas, supporting space science missions and supporting the space transportation infrastructure. Science applications: The atmosphere is opaque to much of the electro-magnetic spectrum. In space, the absence of...

Cryosurgery

Review of Cryosurgery Boris Rubinsky, PhD Hebrew University School of Science and Engineering Research Center for Biomedical Engineering 78b Ross Building Givat Ram, Jerusalem 91904 Israel rubinsky@cs.huji.ac.il as published in Annual Review of Biomedical Engineering, August 2000, Vol. 2, pp. 157-187. Abstract: Cryosurgery is a surgical technique that employs freezing...

Liquefied Natural Gas

Liquefied Natural Gas as it relates to the Field of Cryogenics John W. Bonn VJ Systems, LLC johnbonn@vjsystems-lic.com Today the world is looking for a cleaner fuel and Liquefied Natural Gas (LNG) plays a large part in achieving this goal. LNG in a liquid form is at -162°C (-259°F) and...

Food Processing

Cryogenics and Food The industrial gas industry provides a host of products and services related to food. The various gases have useful and sometimes fascinating applications in food industry. “The food industry is not a homogenous industry. The needs of customers processing hamburger vs. poultry vs. strawberries vs. seafood, for...

Latest in Ask the Experts

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?

Using nitrogen as a cryogen

Is it possible to achieve -200˚C using nitrogen as a cryogen?

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