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Pilot Project Tests New High-Capacity Transmission Lines

VEIR, an early-stage technology company based in Woburn, Mass., is pioneering the first application of superconducting transmission over long distances, a key component to deliver renewable sources of energy safely and reliably from where it is generated to where it is needed, often cross-country. VEIR is teaming up with National...

Thermal Control Designs Keep Astronauts Cool on Space Station

For astronauts, staying cool and comfortable on China’s Tiangong space station is no problem. The station orbits Earth in about 90 minutes at an altitude of 400 km. It experiences large fluctuations in temperature, ranging from 150 degrees Celsius when the station is exposed to the sun to minus 100...

Three Questions: Emre Gençer on the role of blue hydrogen in decarbonizing the world’s energy systems

In the past several years, hydrogen energy has increasingly become a more central aspect of the clean energy transition. Hydrogen can produce clean, on-demand energy that could complement variable renewable energy sources such as wind and solar power. That being said, pathways for deploying hydrogen at scale have yet to...

First Radio-Astronomy Cryogenic Receivers with All-Metal 3D-Printed RF Components

The NAOJ ALMA Project and Advanced Technology Center have successfully fabricated corrugated all-metal 3D-printed horns for the ALMA Band 1 receivers (Radio Frequency: 35-50 GHz). Since around 2015, the NAOJ ALMA Project and the Advanced Technology Center have been studying the applications of additive manufacturing (AM), which produces three-dimensional objects by...

Explained: Why ISRO again test-fired its CE-20 Cryogenic Engine, ahead of next flight in 2023

The Indian Space Research Organization (ISRO) has successfully test-fired its CE-20 Cryogenic engine, as part of the preparation for the next launch of its heaviest rocket. This latest test comes a week after the Indian Space agency placed 36 satellites of the UK-based ‘OneWeb’, into Low Earth Orbit, using its...

Azenta Hosts First Cryogenic Considerations for Cell & Gene Therapy Symposium

Azenta Life Sciences, a leading provider of life sciences solutions worldwide, hosted the Cryogenic Considerations for Cell and Gene Therapy Symposium in Boston, MA October 17-19th. The symposium brought together over 100 participants across over 60 organizations including top cryobiology experts to discuss the nuances of cryogenic supply chain, transient warming, and...

Latest in Defining Cryogenics

Mixed Refrigerant Cycles

Most cryogenic refrigeration systems, both large scale systems and cryocoolers, use helium as a working fluid. There are a number of advantages to helium, not the least of which is that helium remains a fluid down to the lowest achievable temperatures. In order to freeze helium, pressures of over 20...

Fountain Pumps and He II Phase Separators

Helium II (He II), the second liquid phase of the 4He isotope described in this column in Cold Facts Spring 2010 (http://2csa.us/he2), can be modeled as consisting of two interpenetrating fluids. One, the superfluid component, has zero viscosity and entropy and the other, the normal fluid component, has nonzero viscosity...

Turboexpanders

A vital technology in the refrigerators and liquefiers described in Cold Facts Volume 31 Number 3 is that of turboexpanders. These devices are rotating machines in which the process fluid (e.g., helium) does work against the turboexpander while moving from high pressure to a lower pressure and thus is cooled....

Latest in Cryo Central

Air Separation and Liquefaction

by Nils Tellier, PE, President, EPSIM Corporation (CSA CSM) nils@epsim.us All illustrations courtesy EPSIM Corporation Background History of Air Separation and Liquefaction This section builds on a rich history of methods to develop deep refrigeration and cryogenic liquefaction during the 19th Century. You are encouraged to read Cryo Central’s History...

Bose-Einstein Condensate

A Bose-Einstein condensate, first proposed in 1925 by Albert Einstein based on work done by Satyendra Nath Bose (the same Bose from whom the term boson is derived), is a super-cold state of matter in which almost all of the individual atoms have “condensed” down to the lowest possible quantum...

Cold Technology for Pest Control

While it does not reach temperatures cold enough to be called cryogenic, carbon dioxide snow is at the heart of a new way of dealing with unwanted pests. It utilizes a quick freezing process that takes advantage of the properties of carbon dioxide snow and has a number of benefits...

Cryogenic Finishing

The following 3 articles discuss the uses and procedures of various type of cryogenic finishing. 1) By Robin A. Rhodes, Cryogenic Institute of New England, Inc. rrhodes@nitrofreeze.com Cryogenic Deflashing is employed to remove undesired residual mold flash that remains on molded parts after they are removed or ejected from the...

Latest in Ask the Experts

Thermal shock on steel cylinder when dropped into liquid nitrogen

We are a research team at the University of South Florida, studying the “thermal shock” on a steel cylinder when it is dropped into liquid nitrogen. We want to make sure that the thermocouple does not get influenced by the surrounding LN2. Any advice?

Getter materials to absorb out gassed materials?

Here’s one for the scientists: We would like to sell vacuum insulated pipe for high temperature fluid applications. Are there any good getter materials that we can place in the vacuum space of our VJP to absorb outgassed materials at elevated temperatures?

Data on Carbon Fibres Reinforced Plastic at temperatures between 4 and 300K.

I am looking for data on Carbon Fibres Reinforced Plastic at temperatures between 4 and 300K. I would appreciate it if someone could give me some hints on where to find it.

Design of cryostats and suspension mechanisms for insulation and cryostat shielding

I’m looking for information about the design of cryostats and suspension mechanisms for insulation and cryostat shielding.

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