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New Green Storage System Offers Renewable Energy On-Demand

Back to the Future movie fans may remember the term “flux capacitor” as a fictional device that allows for time travel. That device still doesn’t exist, but a University of Central Florida storage technology does use a different type of flux capacitor developed by NASA. While trying to find a way...

Commonwealth Fusion Systems Opens Fusion Energy Campus on the Fastest Path to Bring Clean Fusion Energy to the World

Commonwealth Fusion Systems (CFS) officially opened its new campus to support the development and deployment of commercial fusion energy. The ceremonial event included visits from U.S. Secretary of Energy Jennifer M. Granholm, U.S. Senator Elizabeth Warren, U.S. Senator Edward Markey, U.S. Representative Lori Trahan, Massachusetts Lieutenant Governor Kim Driscoll, along...

Oxygen Diffuser Project Underway in Kentucky

The U.S. Army Corps of Engineers Nashville District is executing a sustainability project funded by the Section 212 Program to install an upstream diffuser system at Wolf Creek on the Cumberland River in Jamestown, Kentucky. The district is partnering with power preference customers, the Southeastern Power Administration, and Tennessee Valley...

Honeywell’s Fuel Cell Powertrain Project Comes Alive

Honeywell Aerospace is confident that an EU-funded consortium it is leading can deliver a “commercially viable” high-power fuel cell powertrain for regional aircraft applications. Ground tests of the entire 1MW propulsion system – including an electric motor – will be performed in 2026 under the Clean Aviation-backed Newborn project. Although the...

The Moon is Too Hot and Too Cold; Now It Could Be Just Right

With temperatures on the moon ranging from -410° to a scorching 250° F, it’s an understatement to say that humans will need habitats with heat and air conditioning to survive there long term. But heating and cooling systems won’t be effective enough to support habitats for lunar exploration or even...

A World-First in HTS Magnets

Oxford-based Tokamak Energy has built a world-first set of new generation high temperature superconducting (HTS) magnets to be assembled and tested in fusion power plant-relevant scenarios. Creating clean, sustainable fusion energy requires strong magnetic fields to confine and control the extremely hot, positively-charged hydrogen fuel, which becomes a plasma several...

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Helium-3

Helium-3 (3He) is one of the two stable isotopes of helium. The other is the much more common Helium-4 (4He). Neither of these isotopes should be confused with He II, which is the second liquid phase of 4He. He II was discussed in this column in the Spring 2010 edition...

Cryopumping

Cryopumping refers to the use of cryogenic temperatures to produce vacuum in enclosed spaces. More broadly, it can also refer to the removal of gases via cryogenic temperatures from a flow stream or enclosure without necessarily resulting in vacuum pressures. This is an important application of cryogenics and is used...

Thermal Acoustic Oscillations

Thermal Acoustic Oscillations (TAO) are a common event in cryogenic systems that can have significant adverse effects on the performance of the system. TAOs are sustained pressure oscillations that can occur in tubes containing gas, closed at one end (the warm end) that have a very large temperature gradient along...

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...

Need help with temperature dependent model

I am a fourth-year student at New Zealand University. My name is Xu Ke. I have a project to generate a temperature dependent model for inductor, capacitor and diode by using PLECS. PLECS is software which acts as a toolbox for MATLAB. In my models, the temperature is very low,...

In what form is water available in LN2?

Does anybody know in what form water is available in LN2? There probably is a block of ice in the bottom of the tank. But as water comes in many shapes, I can imagine snow or crystals floating free in the LN2. When water is available in LN2, could small...

Separating gases using cryogenics

We are looking for some consulting engineers who understand how to separate gases using cryogenics. We have a new process which takes biomass and converts it to 5 gases and we need to separate these gases into their pure forms. Thanks for your help. Malcolm Draper Energy Research Group LLC...