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Purdue Clears Hurdle in Race toward Quantum Computing

Qubits are not all created equal, but some researchers believe that topological qubits—which are tougher and less susceptible to environmental noise than other kinds—may be the best medium for pushing quantum computing forward.

RegO’s SK Advantage Series Valve Designs Deliver Safe, Leak-free Operations

While developing stainless steel globe valves for handling cryogenic liquids such as LNG, RegO incorporated several design features to help ensure that valves have a tight seal when closed, superior flow rate when open, simplified maintenance and a longer service life.

GTT’s Membrane Technologies Provide Solution For LNG-Fueled Ships

LNG shipping began in the 1960s with the launch of PYTHAGORE, a vessel featuring the integrated GTT Tank Mark I membrane. This initial GTT version was followed a few years later, when the METHANE POLAR (POLAR ALASKA, 1969) included the first form of the integrated GTT Tank NO-82 membrane.

New Technology at NASA Offers Full Control Of Cryogenic Liquids

As part of NASA’s plan for the first launch of its Space Launch System rocket and Orion spacecraft that will send humans beyond low-Earth orbit, Exploration Ground Systems at Kennedy Space Center is preparing to build the world’s largest liquid hydrogen storage tank incorporating the latest cryogenic liquid control technology...

Cryo-EM Facility under Construction At Brookhaven National Laboratory

Brookhaven National Laboratory has broken ground on its Laboratory of BioMolecular Structure (LBMS), a state-of-the-art research center for life science imaging. At the heart of the center will be two new cryo-electron microscopes (cryo-EM) designed to study biomaterials.

Young Professionals 2019: The Next Generation in Cryogenics Part 1

Young Professionals introduces outstanding young professionals (under 40 years of age) who are doing interesting things in cryogenics and superconductivity and who show promise of making a difference in their fields.

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

Cryogenic Treatment of Materials

F.J. Diekman Controlled Thermal Processing, Inc. info@metal-wear.com Cryogenic Processing (also called cryogenic treatment, and incorrectly “cryogenic tempering”) is a process that uses cryogenic temperatures to modify materials to enhance their performance. Cryogenic Processing involves the slow reduction in temperature of the material to at least -300°F (-185°C) and holding the...

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...

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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