Why hydrogen (for now) only pollutant is
Posted on 24-10-2015 at 12:09 by dizono – 79 Comments”
According to many, is not electricity, but hydrogen is the future. Toyota and Honda may be sure to that group be counted, just like our government. Hydrogen cars are even more sparing in the addition than fully electric cars. And although hydrogen itself is a clean stuff is, why there is a whole dirty off-flavor.
Hydrogen (H), an element that is all around and in us, but never come alone. It is actually I linked to the other elements to, for example, water (H2O) to form. Unlike fossil fuels, we will have hydrogen need to produce, we can not hollow.
How hydrogen can make
Big chance that your science teacher has ever show you how to electrolysis hydrogen. It is very simple: you take two electrodes, plug in water and you leave there with, for example, a 9V battery electricity by walk. Lighter what of that self-produced hydrogen gas, and you got a nice bang as proof that hydrogen is created.
When hydrogen in a fuel cell is going to bind with oxygen to water to form, energy is released. The law of conservation of energy is coming here to the corner; there can never have more energy out than the energy that is used to electrolysis hydrogen. Ergo: hydrogen can only be produced and this energy is needed. That energy can, minus the efficiëntieverliezen of both the production, transport, storage and the fuel cell, then used to be and electric motor to power it. Thus, hydrogen is like a battery – especially an energy carrier and not as gasoline or diesel fuel.
How hydrogen really is made
But we are not there yet. At this time it is not possible to use electrolysis on a large scale hydrogen. For that purpose the electrodes are too expensive, and must often be replaced. Currently, therefore, virtually all the hydrogen made by stoomreforming. That is a chemical process in which natural gas and steam are combined together at 850 degrees celsius and under a pressure of 25 bar. A process that many efficiëntieverliezen know and for which large-scale fossil fuels are used. Add to that the fact that hydrogen is volatile and it is difficult to save. Let a tank with hydrogen in a long time, and the stuff disappears like snow under the sun. That makes storage and transport is also less efficient than electricity or fossil fuels.
While we are on Groen7 several have message about new research and inventions that the production of hydrogen is cleaner, there is as yet little tranquil to hydrogen. You can then have the water from the exhaust of a Toyota Mirai drink, but the real exhaust of a hydrogen car is in a different place to smoke.
And what does our government?
Our government has in all its wisdom decided the tax on hydrogen cars in the coming years, just as low as the tax on electric cars. Where in the future, the low tax on electric cars is only valid for a maximum of 50,000 euro of the purchase price, since this restriction does not apply for hydrogen cars. Brandstofceltechniek is currently still expensive and in this way wants our government the industry the opportunity to develop it. But should we really want?