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Equigas’ Strategic Acquisition is a Catalyst for Innovation

Equigas, Inc., a North Carolina-based gas equipment distributor, has embarked on an exciting new chapter with its recent acquisition of Correct Cryogenics, a respected cryogenic service provider headquartered in the Southwest US. This strategic move is a pivotal moment for Equigas as it seeks to expand its service offerings and...

Fives Pioneers Renewable Energy Storage and Hydrogen Mobility

The Largest Renewable Energy Storage Project-Fives, a global industrial engineering group, has been selected by Zhonglv Zhongke Energy Storage Technology Co. to supply cryogenic equipment for the largest renewable energy storage project on an industrial scale. This project, located in Golmud, Qinghai province, China, is set to be operational by...

Frozen Imaging: How Cryogenic Cameras Power Unprecedented Discovery

The Legacy Survey of Space and Time (LSST) Camera in Chile and NASA’s Compact Thermal Imager (CTI) represent cutting-edge advancements in astronomical and Earth science technology. The LSST Camera, soon to be operational at the Vera C. Rubin Observatory, will survey the entire southern sky every three nights for a...

NIST Scientists Modify Common Lab Refrigerator to Cool Faster with Less Energy

In a groundbreaking development, scientists at the National Institute of Standards and Technology (NIST) have engineered a significant enhancement to the efficiency of cooling materials to temperatures near absolute zero. Through modifications to a commonly used laboratory refrigerator, they have achieved remarkable reductions in both cooldown time and energy consumption....

BHEX Leverages Cryogenics to Capture Black Holes

Introduction to BHEX-The Black Hole Explorer (BHEX) is a mission that will discover and measure a black hole’s photon ring, capturing light that has orbited a black hole. BHEX will extend the Event Horizon Telescope (EHT) into space, producing the sharpest images in the history of astronomy, whilst operating a...

Looking Backward and Forward

Since 2018 I have been writing this column on pioneers in cryogenics. So far, a total of 30 people have been profiled. With this column taking a slightly different direction in the future (more below), it’s worth asking if these pioneers had anything in common. Here are a few common...

Latest in Defining Cryogenics

Joule-Thomson Effect

The Joule-Thomson (JT) effect is a thermodynamic process that occurs when a fluid expands from high pressure to low pressure at constant enthalpy (an isenthalpic process). Such a process can be approximated in the real world by expanding a fluid from high pressure to low pressure across a valve. Under...

Current Leads

One of the challenges of using superconducting magnets is the connection of the magnet to a room temperature power supply. This is accomplished via current leads. The trick is that current leads should ideally have a low heat leak, since they connect room temperature to cryogenic temperature, while at the...

Multilayer Insulation

Multilayer insulation (also referred to as superinsulation) is a key component in the reduction of heat leak to cryogenic systems due to thermal radiation. MLI consists of a series of uncooled reflective surfaces placed in the vacuum space between two surfaces, one warmer than the other. Generally speaking, for ideal...

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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