Fuel Cells

Fuel Cells

ABSTRACT

We may soon be using the new energy-saving technology to generate electrical power for our homes and cars. The technology is extremely interesting to people in all walks of life because it offers a means of making power more efficiently and with less
pollution.

To be technical about it, a fuel cell is an electrochemical energy conversion device. A fuel cell converts the chemicals hydrogen and oxygen into water, and in the process it produces electricity.

The fuel cell will compete with many other types of energy conversion devices, including the gas turbine in your city's power plant, the gasoline engine in your car and the battery in your laptop. Combustion engines like the turbine and the gasoline engine burn fuels and use the pressure created by the expansion of the gases to do mechanical work. Batteries converted chemical energy back into electrical energy when needed. Fuel cells should do both tasks more efficiently.

A fuel cell provides a DC (direct current) voltage that can be used to power motors, lights or any number of electrical appliances.

There are several different types of fuel cells, each using a different chemistry. Fuel cells are usually classified by the type of electrolyte they use.

The proton exchange membrane fuel cell (PEMFC) is one of the most promising technologies. This is the type of fuel cell that will end up powering cars, buses and maybe even your house.

INTRODUCTION

What is a Fuel Cell?

Definition: A fuel cell is a high efficiency electrochemical energy conversion device which can generate electricity and produce heat, with the help of catalysts

A fuel cell is an electrochemical energy conversion device. A fuel cell converts the chemicals hydrogen and oxygen into water, and in the process it produces electricity.

Since the product is only water, fuel cells are very environmental-friendly. In fact, using fuel cells to powers vehicles is a good way of reducing urban pollution.

Fuel cell technology is becoming increasingly popular in power generation and automotive applications. Advantages include low fuel emissions and high efficiency. The most common fuel used in a fuel cell is hydrogen.

Download full seminar papers At
http://www.enjineer.com/forum