Sunday, December 14, 2008

Hydrogen storage and transporation methods:




see also DERA's concepts: http://www.h2net.org.uk/PDFs/Stor2000/H2nettalk_Nov00.pdf

One of the greatest problems connected with hydrogen was the method of its storage. The very high explosiveness of this gas, forced scientists to work intensively on developing new safe way of its lying in. We can distinguish the following ways of hydrogen storage:

Compressed in the gas vessel
This method may be applied only in stationary usage because of the danger of explosion and high weight of the vessel. This process requires energy to accomplish and the space that the compressed gas occupies is usually quite large resulting in a lower energy density when compared to a traditional gasoline tank. A hydrogen gas tank that contained a store of energy equivalent to a gasoline tank would be more than 3,000 times bigger than the gasoline tank. Hydrogen can be compressed into high-pressure tanks where each additional cubic foot compressed into the same space requires another atmosphere of pressure of 14.7 psi. High-pressure tanks achieve 6,000 psi, and therefore must be periodically tested and inspected to ensure their safety.
Traditional steel cylinders:

heavy, typically <1>

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