In the fuel cell laboratory of AVL, the high temperature test bench was used to perform the experiments. This test bench is intended for testing and development of fuel cells, reformers, afterburners, heat exchangers, valves and sensors and systems formed from them. It can be operated with air, nitrogen (N2), carbon dioxide (CO2), carbon monoxide (CO), hydrogen (H2), hydrogen sulphide (H2S), methane (CH4) and natural gas. Also for the operation of a system there is the possibility of feeding diesel or gasoline through pipelines to the test. It is possible to deliver the media flow-or pressure-controlled, control the heating, to moisten and also to cool. The media can be heated up to 800°C.