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1 Hydrogen power car safety? Empty Hydrogen power car safety? Thu Jun 11, 2015 1:17 am

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The characteristics of the gasoline itself at room temperature is liquid, so it is not easy to explosive explosive, in the vehicle design does not need too much thought to prevent this.

The safety of hydrogen fuel can only be ensured by strengthening the strength and sealing of the vessel.. That is, even if the accident can not let hydrogen leakage, such as automatic sealing, redundant valve and so on. But there is no doubt that the safety of hydrogen powered vehicles on the design requirements of a lot higher than gasoline car. The safety problem of liquid hydrogen is divided into the safety problem and the safety problem after the leakage.:

The security problem is the main leakage of hydrogen tanks may be due to collision and other reasons lead to deformation or rupture (there is no hydrogen tank is heated, and dangerous) this situation is very extreme, because the material structure strength manufacturing hydrogen tank generally reached 2.2MJ/kg, organic metal plastic even up to a maximum of 18MJ/kg, another hydrogen tank the new technology (multilayer thickness reduction (instead of single tank), multi cavity hydrogen tank, to maintain a certain pressure drop per cavity, if a hydrogen tank cavity damage can be reduced by between layer and layer spacing and adjusting pressure drop between the layers to prevent the tank rupture) is to strengthen the security of the Lord in this respect.

The hydrogen storage tank is sealed, forming the space of low temperature and high pressure, so that it can be stored in a large amount of liquefied, including the whole fuel supply system must have guarantee. As to the safety of leakage after, but hydrogen is more secure, because its density is too low, the leak will be linear upward movement, even though the formation of flame, that is one-dimensional linear flame, pointing to the sky; and oil fuel is spread to the surrounding formation of burning surface, but less safe.]

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