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Medical School Pathology, Chapter 1a: Cellular Adaptations, Cell Injury and Cell Death

Overview of the technology of fuel cells.

Are you tired of high prices of gasoline for your car? Or perhaps worried about the environment? For years, scientists working on an energy alternative that holds promises to change the way we live, changing the fuel source for some of our energy needs for the most basic use of the engines. This new technology is called a fuel cell. A fuel cell provides a DC (direct current) voltage that can be used in electric motors, lights, or any number of electrical appliances.

The technical name of a fuel cell is a device for electrochemical energy conversion. A fuel cell converts hydrogen and oxygen in water and chemicals in the process that produces electricity. Other electrochemical devices that are used today and for decades the battery is well known. Unlike the distinction between simple battery and a fuel cell is that all chemicals are stored inside the battery. The battery, in turn converts chemical energy into electrical energy, but eventually she “fell” as the chemicals are used and sometimes you can throw away or recharge it.

Then again with a fuel cell, chemicals constantly flow into the cell until there is a flow of chemicals within the cell, electricity flows out of the fuel cell. Combustion engines of the gasoline burn fuel and batteries convert chemical energy into electrical energy when needed. However, fuel cells should do both tasks more efficiently.

Simply put the construction and materials in a press release electrons from the gas cell, hydrogen fuel to create energy and produce waste after it is used to power an electrical device is water, formed with l ‘ hydrogen and oxygen.This negative reaction in a single fuel cell produces only about 0.7 volts. For this tension to a reasonable level, many separate fuel cells must be combined to form a fuel cell.

However, one major problem with the use of hydrogen is that it can not be easily stored for use by consumers. Among other options, could be natural gas, propane and methanol. The main objective of using fuel cell technology is pollution reduction. Fuel cells are also very effective, 80% of fuel consumption in these cells is converted into usable energy, compared to only 20% for gasoline engines and about 30% overall for an electric vehicle powered by batteries .

Obviously there is no doubt that fuel cells are more promising for the future. However, the technology of fuel cells is yet to assemble all the pieces to find the right source of fuel ‘ “that is both easy to store and deliver to the consumer, the efficiency of the vehicle with fuel cells, and the cost the total package.

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