How Hydrogen Fuel Cell Cars Work

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What are the Fuel Cells?

Hydrogen fuel cell cars are already in existence but more advances need to be made in this emerging science before average consumers can take advantage of the new technology. A fuel cell is a device that converts electrochemical energy. The fuel cell will convert oxygen and hydrogen into water and as a result of this process it will produce electricity. It can be compared to a battery that contains the chemicals needed to convert energy into electricity inside of it; but a battery will eventually go dead when the chemicals are used up if it cannot be recharged.

The beauty of hydrogen fuel cell cars is that the fuel cell never dies. The flow of chemicals is constant and creates electricity to flow out of the cell. Most of the fuel cells that are being experimented with today use oxygen and hydrogen for its energy source.

The Efficiency of Hydrogen Fuel Cell Cars

The main goal of hydrogen fuel cars is to reduce the pollution that standard gasoline cars emit. Right now we have the technology to run cars on battery power, hydrogen and gasoline. The difference between the three is how the mechanical power is produced. The fuel cell is said to be able to convert as much as 80% of the hydrogen content into electric power. You still need an inverter and electric motor to accomplish this. This too is said to be about 80% efficiency and if you add the two together the efficiency overall is said to be nearly 65%. 

When hydrogen is not the only fuel source for a hydrogen fuel cell car it must also have a reformer. This reformer will convert alcohol fuel or hydrocarbon into the hydrogen needed. Because this method for powering hydrogen fuel cell cars is not as clean nor as efficient, scientists are concentrating more on the pure hydrogen fuel cell cars even though there are many challenges to overcome such as storage and the production of hydrogen.

Why Use Hydrogen Fuel Cell Cars

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