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Worldwide, there were 14.8 million natural gas vehicles by the end of 2011, mostly in the form of bi-fuel vehicles. [175] The other use for natural gas is in steam reforming which is the common way to produce hydrogen gas for use in electric cars with fuel cells. [8] Methane is also an alternative rocket fuel. [176]
Alset GmbH developed a hybrid hydrogen systems that allows vehicle to use petrol and hydrogen fuels individually or at the same time with an internal combustion engine. This technology was used with Aston Martin Rapide S during the 24 Hours Nürburgring race. [11] The Rapide S was the first vehicle to finish the race with hydrogen technology. [12]
A hydrogen on demand vehicle uses a chemical reaction to produce hydrogen from water. The hydrogen is then burned in an internal combustion engine or used in a fuel cell to generate electricity which powers the vehicle. These designs take energy from the chemical that reacts with water; vehicles of this type are not precluded by the laws of nature.
That's the hydrogen fuel-cell vehicle, related to an EV but with specific differences that make hydrogen cars different and much rarer. To date, about 2.5 million EVs have been sold in the U.S.
Servicing a Hydrogen Car. Like electric cars, hydrogen vehicles require dealership service centers to exercise some special precautions. HFCVs have the same high-voltage battery packs as a hybrid ...
A prototype car, the NECAR 5, was introduced by Daimler-Chrysler in the year 2000. The primary advantage of a vehicle with a reformer is that it does not need a pressurized gas tank to store hydrogen fuel; instead methanol is stored as a liquid. The logistic implications of this are great; pressurized hydrogen is difficult to store and produce.
The chemical reactions for the SOFC system can be expressed as follows: [44] Anode reaction: 2H 2 + 2O 2− → 2H 2 O + 4e − Cathode reaction: O 2 + 4e − → 2O 2− Overall cell reaction: 2H 2 + O 2 → 2H 2 O. SOFC systems can run on fuels other than pure hydrogen gas. However, since hydrogen is necessary for the reactions listed above ...
The oxidation reaction between the oxygen ions and the hydrogen produces heat as well as water and electricity. If the fuel is a light hydrocarbon, for example, methane, another function of the anode is to act as a catalyst for steam reforming the fuel into hydrogen.