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

Insufficient Pressure Conditions in Fuel Tank Led to the Failure of GSLV Mission in 2021: ISRO

The Indian rocket that carried the country’s first Geo Imaging Satellite (GISAT-1) failed in its mission, owing to damage in the soft seal in a critical valve which resulted in lower pressure in the rocket’s liquid hydrogen (LH2) tank, the Indian Space Research Organization (ISRO) said on Friday. According to ISRO’s...

Building the Quantum Workforce

For most of us, quantum computing, next-generation quantum sensing and quantum networking still belong to the future. But many early-career scientists and students are already preparing for that future. Physicist Reina Maruyama, who studies neutrinos and dark matter at Yale University, says she has seen a flood of students and postdocs...

The Shipping Industry Looks for Green Fuels

Look at all the surrounding stuff. Unless you’re in the middle of the desert or somewhere else far from civilization, nearly everything you see traveled to you by sea. “Ships bring 80–90% of most everything you want or need, or the raw materials used for making those things,” says Natasha Brown,...

Breakthrough Quantum Hardware to be Made in USA

Maybell Quantum unveiled the Icebox, a cryogenic platform to power the next generation of quantum computers. Maybell’s condenses a room-sized cryogenic setup into a system slightly larger than a kitchen fridge, cooling quantum devices to just a few thousandths of a degree above absolute zero. Maybell’s Icebox solves several pressing challenges...

JILA Atomic Clocks Measure Einstein’s General Relativity at Millimeter Scale

Physicists from JILA (formerly known as the Joint Institute for Laboratory Astrophysics, a physical science research institute at the University of Colorado Boulder campus and jointly operated by the National Institute of Standards and Technology [NIST] and the University of Colorado Boulder) have measured Albert Einstein’s theory of general relativity...

Nikkiso Clean Energy & Industrial Gases Group Announces Expansion of Marine Manufacturing in Asia

Nikkiso Clean Energy & Industrial Gases Group (Group), a part of the Nikkiso Co., Ltd (Japan) group of companies, is proud to announce yet another expansion of their manufacturing capabilities for the growing marine market. With this expansion, they have become one of the largest manufacturers providing localized assembly in...

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 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?

CATEGORIES