Subject:- Renewable Energy Sources

Topic:- Energy Management

Difficulty:- High

1. A cell capable of generating an electric current by converting the chemical energy of a fuel directly into electrical energy.

2. Fuel in a suitable form is supplied to the negative electrode and oxygen often from air to the positive electrode.

3. When the cell operates , the fuel is oxidized and the chemical reaction provides the energy that is converted into electricity fuel cells differ from conventional electric cells in the respect that the active material are not contained within the cell but are supplied from outside.

4. Pure hydrogen gas would be preferred fuel for fuel cell cells, alternatively, impure hydrogen obtained from hydrocarbon fuels such as natural gas or substitute natural gas , liquefied petroleum gas or liquid petroleum products can be used in fuel cells.

5. Main uses of fuel cells are in power production, automobile vehicles and in special military use.