ADVERTISEMENT

© United Airlines/JetZero

JetZero Partners with SHZ to Explore Liquid Hydrogen-Powered All-Wing Aircraft

  US-based aircraft developer JetZero has partnered with French startup SHZ Advanced Technologies to explore a hydrogen-powered version of its Z4 all-wing design. Under the agreement, the clean aircraft venture will support SHZ in adapting its patented liquid hydrogen storage and distribution technologies for a Z4 variant, expected to deliver...
Image: Air Products

Air Products Successfully Completes First Liquid Hydrogen Fill of the World’s Largest Hydrogen Sphere at NASA’s Kennedy Space Center

Image: Air Products Air Products (NYSE:APD), the world’s leading supplier of hydrogen, today announced it has successfully completed the first fill of the world’s largest hydrogen sphere at the National Aeronautics and Space Administration’s (NASA) Kennedy Space Center located on Merritt Island, Florida. NASA uses liquid hydrogen combined with liquid...
Image: GenH2

GenH2’s Liquid Hydrogen Innovation Earns NASA Nomination for Prestigious Invention of the Year Award

Image: GenH2 Company’s Cryostat CS500 Recognized for Commercialization of NASA-Developed Technology with Honorable Mention TITUSVILLE, FL, UNITED STATES — GenH2 Corp., a Path2 Hydrogen Company, a leader in liquid hydrogen infrastructure solutions, announced today that NASA nominated its Cryostat CS500 simulation test platform at the Kennedy Space Center for the agency’s prestigious Commercial Invention...
Scientists in Copenhagen have built an artificial platform to mimic elusive quantum states in superconductors, bypassing decades-old detection challenges. Credit: Stock

Quantum Breakthrough: Scientists Find “Backdoor” to 60-Year-Old Superconducting Mystery

Scientists in Copenhagen have built an artificial platform to mimic elusive quantum states in superconductors, bypassing decades-old detection challenges. A Copenhagen team has unlocked a clever “backdoor” into studying rare quantum states once thought beyond reach. Scientists at the Niels Bohr Institute, University of Copenhagen, have discovered a new approach...

ADVERTISEMENT

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....

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...