Cryogenic – Definition and Pronunciation
What is Cryogenics?
Cryogenics is the production and application of low-temperature phenomena. The cryogenic temperature range is usually from –150 °C (–238 °F) to absolute zero (–273 °C, or –460°F), the temperature at which molecular motion essentially ceases. A most important commercial application of cryogenic gas liquefaction techniques is the storage, transportation, and regasification of LNG.
Examples of Cryogenics
LNG feeder vessels can be loaded at large LNG import terminals. Loading takes place via fixed cryogenic pipes and flexible hoses or fixed arms at the typical rate of 1 000 – 6 000 m3/h (depending on the size of the feeder vessel).
From “The Role of LNG Bunkering Infrastructure”.
If LNG comes into contact with steel, the steel will embrittle due to the low temperature and a steel structure may fracture. Stainless steel retains its ductility at low temperatures and is therefore more resistant to contact with cryogenic liquids.
From “LNG (Liquefied Natural Gas) as Fuel”.
Concrete, when properly cured and insulated, has excellent cryogenic properties. In the case of an LNGC–FPSO, it offers reasonable economy if multiple casting can be made with the same mold system.
From “Floating LNG Terminals General Overview”.