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First Modern Liquid Oxygen Manufacturing Plant To Be Constructed At Tatu Industrial Park

Hewatele, a company based in Kenya that focuses on providing medical-grade oxygen and other healthcare solutions, held a groundbreaking ceremony for the construction of East Africa’s first modern liquid oxygen manufacturing plant, designed to address the rising demand for medical-grade liquid oxygen in healthcare facilities throughout the region. The advanced cryogenic medical...

Into the Fast Lane for Quantum Innovation

The nascent quantum technology supply chain has reached an inflection point as companies large and small – among them household names like Google, Microsoft and IBM as well as a new wave of ambitious start-up ventures – shift gears to translate their applied research endeavours into at-scale commercial opportunities in...

Viewing Fast Vortex Motion in a Superconductor

  S. Nakamura et al. [1] Peering into the vortex. Top: Vortices form in a superconducting film (gray) in the presence of an external magnetic field provided by a coil. The field generates a shielding current in the film (pink). An infrared pulse transmitted through the superconducting film provides information about the vortices’...

KLM Partners With ZeroAvia For Liquid Hydrogen-Powered Demo Flight

KLM Royal Dutch Airlines has agreed to perform a flight demonstration of ZeroAvia’s ZA2000 hydrogen-electric engines in 2026. “We’re going to do a groundbreaking demonstration flight between two airports using liquid hydrogen fuel,” KLM CityHopper MD Maarten Koopmans says at the Farnborough Airshow. “KLM wants to be a front-runner in this field, and taking...

Superconductor Offers Possible Room-Temperature Bridge

A new superconducting compound offers a bridge to more practical superconductors with a potentially attractive range of applications, according to new research. And the new material’s strange magnetic behavior recalls classic superconductors of decades ago—but this time in a material that’s already demonstrated its near-room-temperature bona fides.  Lanthanum hydrides—which combine atoms of the...

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Refrigerators and Liquefiers

Two of the most common terms used in cryogenics are “refrigerator” and “liquefier.” These terms describe similar and, as will be seen, in some cases identical components. A refrigerator provides cooling (that is, absorbs heat) at cryogenic temperatures. Refrigerators typically put a working fluid (such as helium) through one of...

Air Separation

Air separation is one of the largest, as well as earliest, industrial applications of cryogenics. In this process, cryogenic temperatures are used to separate air into its constituent gases: nitrogen (78.08%), oxygen (20.95%), argon (0.93%) and carbon dioxide (0.3%). Trace gases such as krypton, neon, xenon and helium total far...

Coefficient of Performance and Figure of Merit

The coefficient of performance (COP) is used to describe the effectiveness of refrigerators, including those operating at cryogenic temperatures. The COP is defined as the amount of heat removed at the cryogenic operating temperature of the refrigerator divided by the amount of work that must be applied to remove the...

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...

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...