Compressed Hydrogen Tank

Car manufacturers have been developing this solution such as.

Compressed hydrogen tank. Compressed and liquefied hydrogen. When compressed the density of hydrogen at 35 0 mpa is about 23 kg m 3 and at 70 0 mpa is about 38 kg m 3. The current near term technology for onboard automotive physical hydrogen storage is 350 and 700 bar 5 000 and 10 000 psi nominal working pressure compressed gas vessels that is tanks. See the chart below and download the spec sheets and safety data sheets for more information on buying liquid hydrogen and hydrogen gas.

In order to meet gravimetric targets for compressed hydrogen tanks 10 000 psi carbon resin composites were used to provide the high strength required as well as low weight. The first type iv hydrogen tanks for compressed hydrogen at 700 bars 70 mpa. This leads to an energy density of 767 kwh m 3 27 c 35 mpa. Compressed hydrogen is a storage form whereby hydrogen gas is kept under pressures to increase the storage density.

Hydrogen fuel tanks come in two main variety including those that contain compressed hydrogen gas and those that contain cryogenic hydrogen super cooled liquid hydrogen. The compressed hydrogen is stored in a tank composed of a polymer liner and a composite structure that supports the mechanical forces. 10 000 psi were demonstrated in 2001 the first fuel cell vehicles on the road with type iv tanks are the toyota fchv mercedes benz f cell and the gm hydrogen4. A hydrogen tank other names cartridge or canister is used for hydrogen storage.

In compressed hydrogen storage systems the vast majority of the weight and volume is associated with the hydrogen storage tank. Hydrogen fuel tanks there is a third type that is uncommon which is a tank that holds a hydrogen slurry a hydrogen rich hydrogen compound. Compressed hydrogen in hydrogen tanks at 350 bar 5 000 psi and 700 bar 10 000 psi is used for hydrogen tank systems in vehicles based on type iv carbon composite technology. Compressed hydrogen is a storage form where hydrogen gas is kept under pressures to increase the storage density.

Filament winding is a technique that aims to optimally strengthen the liner with long fiber composites to allow the casing to withstand high pressure. The volume of the storage tank is the biggest challenge since the density of compressed hydrogen is lower than that of liquid hydrogen.