ADVERTISEMENT

ASC 2016 Highlights Progress in Superconductivity

Over 1,600 researchers and engineers from 36 countries gathered in Denver September 4-9 for ASC 2016, attending plenaries, poster sessions and meetings under the watchful gaze of the Colorado Convention Center’s Blue Bear. Celebrating its 50th year, the conference covered a wide range of topics, from superconducting electronics detectors and...

2016 ASC Best Student Paper Contest

The Applied Superconductivity Conference's Best Student Paper Contest recognizes outstanding presentations made at ASC by full-time students. The ability to describe one’s research, by succinctly capturing key results and ideas in written form as well as by presenting and defending the work in front of an audience of experts, is...

After 50 Years of ASC and Magnet Conductors, What’s Next?

Past and present superconducting magnet technology suggests that cheap, strong, available-by-the-ton Nb-Ti alloy conductors will always be used unless it’s absolutely necessary to use another superconducting material. In this decade “absolutely necessary” has taken on a clearer definition, thanks to ITER, the upgrade of LHC, 1 GHz NMR magnets, the...

Laser Powered Cryocooling Drops to 91 K

Over the last couple of decades researchers around the world have been working on optical refrigeration, a new solid-state cooling scheme based on light-matter interactions, and a team of researchers from the University of New Mexico (UNM) and ThermoDynamic Films, LLC (TDF) is currently working to harness the physics of...

Testing JWST’s MIRI Cooler Compressor Assembly

The James Webb Space Telescope’s (JWST) Mid InfraRed Instrument (MIRI) cooler subsystem features a closed cycle helium Joule-Thomson (JT) cryocooler pre-cooled by a three-stage pulse tube cryocooler. In this paper, researchers from Northrop Grumman discuss tests conducted on the CCA, a flight model sub-assembly that compresses and precools MIRI's helium...

Cryogenic System to Cool Malaysian Data Center

An international consortium has announced plans to construct a green data center that features liquid submersion cooling at a location in Malaysia's Klang Valley. The project aims to increase the sustainability of data centers by changing the way facilities are cooled, therein reducing energy consumption by up to 50 percent,...

ADVERTISEMENT

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...

Food Processing

Cryogenics and Food The industrial gas industry provides a host of products and services related to food. The various gases have useful and sometimes fascinating applications in food industry. “The food industry is not a homogenous industry. The needs of customers processing hamburger vs. poultry vs. strawberries vs. seafood, for...

Primary Standards

Elie K. Track Hypres, Inc. elie@hypres.com http://www.hypres.com/ Primary standards involve the exact definition and realization of units of measurement for various quantities, time, length, mass, voltage, resistance, current, etc. International agreements based on the latest scientific knowledge define those units, and their realizations vary depending on the unit itself. For...

Shrink Fitting

Robin A. Rhodes Cryogenic Institute of New England, Inc. rrhodes@nitrofreeze.com Shrink fitting, (or “compression fitting” as it is sometimes called), is a method used to insert a pin or bushing into a housing or other assembly requiring an extremely tight tolerance fit. It can be used as an alternative to...

Telecommunications

From the Winter 2004 issue of Cold Facts magazine The recent M-Calc IV — 4th Industry Assessment workshop discussing military and commercial applications for low-cost cryocoolers, held in November in San Diego, highlighted progress being made in cryogenics as applied in telecommunications. The reliability and long lifetime of projects now...

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...