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Extra info for Hydrogen and fuel cells : a comprehensive guide

Sample text

Hydrogen fuel cells can be applied in our transportation sectors for automotive power and in stationary plants for power generation on just about any scale, from homes to utilities. In the United States in 2002–03, transportation accounted for about 33% of our CO2 emissions (Fig. ind 36 2/24/05, 10:53:19 AM Drivers and Barriers 37 Million metric tons CO2 2,000 Industrial 1,500 Residential Transportation 1,000 Commercial 500 0 1980 1985 1990 1995 2000 FIG. 2–2. S. CO2 EMISSIONS. S. TOTAL. ARTWORK COURTESY OF EIA.

For example, Ford Motor Co. has six prototype fuel cell vehicles in development. ” As another example, General Motors Corp. tested three fuel cell cars in the Tokyo area during 2003–04. The HydroGen3 vehicles, being operated by Federal Express Corp. (Fig. 1–5), can travel 250 miles (400 kilometers, or km) at speeds up to 100 miles per hour (160 km/h). ind 17 2/24/05, 10:45:26 AM 18 Hydrogen and Fuel Cells: A Comprehensive Guide FIG. 1–5. GM HYDROGEN3. THIS FUEL CELL CAR HAS BEEN TESTED BY FEDEX IN THE TOKYO AREA.

You can think of a fuel cell as a type of battery that produces electricity. But conventional batteries generate power from stored chemicals, which need to be replaced. In contrast, chemical energy in the form of a fuel is fed into the cell, so it can generate electricity as long as it’s getting fuel and oxygen (Fig. 1–3). Hydrogen is the fuel cell’s ideal fuel. Water Oxygen (air) Energy Hydrogen Electrolysis Oxygen Hydrogen Fuel cell Energy Hydrogen storage Water Conventional Hydrogen fuels Fuel processor CO2 FIG.

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