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

Researchers Observe Four-dimensional Physics in Two Dimensions

Physicists from two research groups have announced techniques that allow materials in four-dimensional space to be studied in two-dimensional systems. Both experiments dealt with the quantum Hall effect, a phenomenon that has been at the root of three Nobel Prizes in physics.

Qatargas Begins Operations, Finalizing Integration of Qatar Petroleum and RasGas

Qatar Petroleum announced the official start of operations of Qatargas following the completion of its integration with RasGas, a process that began in December 2016. The announcement was made by Saad Sherida Al-Kaabi, president & CEO of Qatar Petroleum, during a press conference held at QP headquarters.

NASA Releases Logo For Upcoming 60th Anniversary

NASA will mark the 60th anniversary of its establishment as a US government agency on October 1, 2018. President Dwight D. Eisenhower signed NASA’s founding legislation, the 1958 National Aeronautics and Space Act, on July 29, 1958, though NASA celebrates its birthday on October 1, the day the agency opened...

Chart Acquires Skaff Cryogenics

Chart Industries, Inc. announced its acquisition of Skaff Cryogenics and Cryo-Lease, LLC in early January. The acquisition, according to Chart, expands the company's direct regional presence for service and aftermarket support in the Northeast United States.

Dippin’ Dots Launches Cryogenic Company

Dippin' Dots, known for its popular flash frozen beaded ice cream, welcomed the new year with the launch of Dippin' Dots Cryogenics, LLC, an offshoot designed to leverage its intellectual property in cryogenic processes and machinery.

Common Oxygen Catalyst Soaks Up Hydrogen Too

Scientists at Oak Ridge National Laboratory (CSA CSM) have discovered that an oxygen sponge used in vehicle exhaust systems to soak up oxygen from air and store it for later use may also be a hydrogen sponge. The finding, according to the researchers, may pave the way for the design...

Latest in Defining Cryogenics

Dewar

A dewar is a type of cryostat named after Sir James Dewar, the researcher who first developed the concept of a vacuum insulated container with silvered walls to reflect thermal radiation. Dewar was the first to liquefy hydrogen, and he created the device to store his discovery. The thermos bottle...

Stirling and Gifford-McMahon Cryocoolers

Stirling and Gifford-McMahon (GM) cryocoolers are two of the most commonly used cryocoolers in cryogenics. Both devices have a significant industrial base and operate at a wide range of temperatures and capacities. The thermodynamic cycles for both of these cryocoolers are quite similar. The Stirling cycle consists of a compressor,...

Liquefied Natural Gas (LNG)

A significant commercial application of cryogenics is the liquefaction, transport and storage of natural gas. Liquefied Natural Gas (LNG) is generally 95 percent methane with a few percent ethane and much lower concentrations of propane and butane. LNG liquefies at 111.6 K. Unlike many applications of cryogenics, the motivation for...

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

Seeking recommendations for commercial sensors

I would like to measure vibrations in small LHe cryostats. Could anybody recommend commercial sensors which would be suitable for the purpose? I am interested in the frequency range between 1Hz and a couple of KHz, with particular attention to the low frequency side.

Estimating cost of carbon steel, pure helium storage tanks

In order to perform an indicative cost assessment of our helium cryogenic plant (still in the design phase), I need an estimation of the cost of carbon steel room temperature pure helium storage tanks. The storage pressure is 20 bar. Can anyone give me suggestions about how to estimate the...

Supplier of pressure sensor that works down to 4.2 K

In an actual experiment we would like to measure the static pressure in a cryostat in the range between one and four bar. Therefore we are looking for some (more or less) cheap pressure sensors that work in liquid helium in the pressure range up to five bar. Unfortunately all...

Looking for reference/textbook suggestions

Can you suggest some reference textbooks for practical thermodynamics applications in cryogenic fields? I need textbooks with cryogenics calculations and examples, dimensioning procedures, second principle applications in cryogenics, heat load calculations, cryogenic pump application, etc. Do such books exist? Does any similar source of information exist?

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