Hydrogen applications, cryogenic

It has been entirely justified to build spacecraft power plants with AFCs. This has also to do with the fact that, in this application, cryogenic storage of the fuel and oxidant, hydrogen and oxygen, is feasible economically and technically. In addition, it was an important aspect that the water produced during operation could be used as drinking water for the crew. The same situation exists in a number of other manned mobile installations, such as bathyscaphs and submarines. 

Arnold, G. and Wolf, J. Liquid hydrogen for automotive application next generation fuel for FC and ICE vehicles. Journal of Cryogenic Society (TEION KOGAKU) Japan, 40(6), 221-230, 2005. 

Polyurethane, PVC, and extruded polystyrene provide the bulk of the cellular plastics used for low and cryogenic temperature applications. In some cases, eg, the insulation of liquid hydrogen tanks on space systems, foams have been reinforced with continuous glass fibers throughout the matrix. This improves strength without affecting thermal performance significandy. 

Reactive absorption is probably the most widely applied type of a reactive separation process. It is used for production purposes in a number of classical bulk-chemical technologies, such as nitric or sulfuric acid. It is also often employed in gas purification processes, e.g., to remove carbon dioxide or hydrogen sulfide. Other interesting areas of application include olefin/paraffin separations, where reactive absorption with reversible chemical complexation appears to be a promising alternative to the cryogenic distillation (62). 

Ahuja V, Green R. Application of matrix heat exchangers to thermomechanical energy recovery from liquid hydrogen. Cryogenics 1998 38(9) 857-867. 

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