Simulation

Siemens Stiftung

Hydrogen production with solar energy

Simulation:
How hydrogen is produced from water using solar energy. It can then be collected in tanks for further use.

The current generated from solar collectors breaks water down into hydrogen and oxygen (see principle of electrolysis).

Information and ideas:
Technologies using hydrogen are technologies of the future.

Simulation

Siemens Stiftung

Fuel cell - operating principle

Simulation:
Operating principle of the fuel cell. It is the ideal source of electric power if hydrogen becomes established as a renewable energy source.


In fuels cells, hydrogen "burns" with oxygen to form water. The hydrogen and oxygen molecules are ionized at catalytically activated electrodes. In the process hydrogen loses electrons which are taken up by oxygen. The simulation shows this "original principle" of the fuel cell and explains (graphically and in the form of an animation) a modern membrane fuel cell with polymer membrane, a so-called PEM fuel cell. Its use in power plants is presented.

Simulation

Siemens Stiftung

Physics and chemistry of water: Operating principle of the fuel cell

Information module:
Operating principle of the fuel cell. It is the ideal source of electric power if hydrogen becomes established as a renewable energy source.


In fuels cells, hydrogen "burns" with oxygen to form water. The hydrogen and oxygen molecules are ionized at catalytically activated electrodes. In the process hydrogen loses electrons which are taken up by oxygen. The information module shows this "original principle" of the fuel cell and explains (graphically and in the form of an animation) a modern membrane fuel cell with polymer membrane, a so-called PEM fuel cell. Its use in power plants is presented. In this application solid oxide fuel cells (SOFC) are generally used. The parameters of PEM and SOFC fuel cells are compared.

Information and ideas:
Fuels cells are also used in combination with gas turbines in power plants.