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Researchers Investigate Reliability of Cryogenic Vacuum Distillation for Soil Water Extraction

The stable isotopes hydrogen and oxygen (δ2H and δ18O, respectively) in soil water are widely used in ecological studies, which rely on the accurate extraction of unfractionated water from different soil types. Cryogenic vacuum distillation (CVD) is the laboratory-based technique most widely used in eco-hydrological studies. However, the reliability of...

Cryogenic Bearings Smooth Way To ‘Greener’ Marine Power

The pressure to reduce greenhouse gas emissions continues as does the search for ‘greener energy solutions’ and one of the consequences of this is significant growth in the use of Liquid Natural Gas for marine applications. LNG has long been regarded as a sustainable fuel and has gained significant traction...

New Approach for the Identification of Metabolites Using LC with Ion Mobility and Cryogenic Spectroscopy

Researchers from Polytechnique Fédérale de Lausanne in Switzerland have developed a new approach for identifying isomeric and isobaric metabolites using high-resolution ion mobility spectrometry (IMS) and cryogenic infrared (IR) spectroscopy. The complex structure of metabolites has made their identification challenging, and analytical standards are often required to confirm their presence...

Chart Industries, Inc. and Crane Company Successfully Test a New Liquid Hydrogen Valve

Chart Industries, Inc. and Crane Company have successfully tested a new cryogenic valve designed and built by Crane for liquid hydrogen applications. This is the first valve launched from Crane’s CRYOFLO™ line of bellow seal vacuum jacketed globe valves, designed and tested by Crane, with final validation, review, and testing conducted...

Consortium Develops Cryogenic 4 K and 77 K Transistor Models

The Innovate UK-funded CryoCMOS Consortium, led by SureCore Ltd, reports that it has successfully created new, PDK-quality, transistor models characterized for both 4 K and 77 K cryogenic operation. SureCore is using these to develop key foundation IP to enable the design of cryo-control ASICs for use in the quantum...

4 Ways Cryogenic Applications of Helium Can Be Used

Helium is a gas with properties that make it useful for many different purposes, from cooling to providing lift in airships. By understanding the basics of its cryogenic principles, we can understand how this gas works and its various uses. The aspects of cryogenic science emerged in early 19th-century experiments by Faraday...

Latest in Defining Cryogenics

Helium II

Helium II (He II) refers to the second liquid phase of the most abundant helium isotope (4He). Helium II is also referred to as superfluid helium. Helium II occurs once the temperature of the liquid helium drops below 2.17K. The phase transition between the first liquid phase of Helium (referred...

Latest in Cryo Central

Cryogenic Electronics

Randall Kirschman, consulting physicist, Mountain View, California ExtElect@gmail.com Cryogenic electronics—the operation of electronic devices, circuits, and systems at cryogenic temperatures—has been a valuable technology for decades. Cryogenic electronics (also referred to as low-temperature electronics, or cold electronics) can be based on semiconductive devices, on superconductive devices, or on a combination...

Particle Physics: High Energy Physics

Cryogenics and High-Energy Physics 1. From symmetry magazine: http://www.symmetrymagazine.org/cms/?pid=1000627: Cryogenics is the study of how materials behave at temperatures near absolute zero. In high-energy particle accelerators, such frigid temperatures reduce the electrical resistance of wires in superconducting magnets, increasing the magnet strength and allowing faster particle acceleration. The same holds...

HTS Degaussing Systems

From the Spring 2009 issue of Cold Facts (Volume 25, Number 2): Thanks to a joint project by the US Navy and a number of industry partners, high temperature superconducting (HTS) technology is now at the heart of an advanced degaussing system aboard the USS Higgins at the naval station...

Magnetic Resonance Imaging

From http://www.superconductors.org: An area where superconductors can perform a life-saving function is in the field of biomagnetism. Doctors need a non-invasive means of determining what’s going on inside the human body. By impinging a strong superconductor-derived magnetic field into the body, hydrogen atoms that exist in the body’s water 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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