ADVERTISEMENT

Nikkiso Acquires Cryogenic Industries

Nikkiso Co., Ltd. has announced its acquisition of Cryogenic Industries (CSA CSM), a group of product and service companies supporting both liquefaction and separation plants for air gases and small-scale plants for LNG liquefaction. The deal is worth an estimated $440 million and is expected to close in August.

CERN Celebrates Linac 4 Completion

The European Organization for Nuclear Research (CERN) celebrated the completion of its Linac 4 during a ceremony on May 9. The new accelerator is expected to allow the Large Hadron Collider (LHC) to reach higher luminosity by 2021. The machine is almost 90 meters long, sits 12 meters below the...

Pulsating Heat Pipes Hold Promise for Future Space Flight

As space flight missions move away from tanks filled with cryogenic liquids towards cryocoolers to provide cooling for cryogenic payloads, new heat transport technologies are needed to cool distributed systems. Researchers have recently investigated pulsating (or oscillating) heat pipes (PHPs) at laboratories and universities in several countries. Possible applications for...

Advancing Cryogenic Temperature Instrumentation

Ryan Oliver explores the evolution of the techniques used to measure and control temperature since this time, with a focus on cryogenic temperatures as a tool, rather than techniques used by those working on defining temperature scales.

Nanoparticles Key to Tissue Preservation

A multidisciplinary research team has discovered a groundbreaking process to cool and rewarm large-scale animal heart valves and blood vessels preserved at very low temperatures. The discovery could result in a major step forward in saving millions of human lives by increasing the availability of organs and tissues for transplantation,...

ADVERTISEMENT

Two-Phase Flows

Two-phase flows are those flows in which there is a mixture of two physical states (solid, liquid or vapor). In cryogenic applications, such flows are almost always a mixture of a cryogenic liquid along with its corresponding vapor. A mixture of liquid helium and helium vapor would be a typical...

Supercritical Fluids

A supercritical fluid is defined as a substance whose temperature and pressure exceed those of its critical point. Every pure substance has a critical point that is defined in thermodynamic space by a critical temperature and a corresponding critical pressure. For example, the critical point for helium has a critical...

Brayton Cycle

The Brayton cycle is one of the many thermodynamic cycles used to generate cooling at cryogenic temperatures. Strictly speaking, when referring to cooling we should call this the reverse Brayton cycle as the original Brayton cycle describes the process of power generation or propulsion via a gas turbine. In many...

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...

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...