Hydrogen Combustion Gifhorn
The recent tightening of the CO2 limit values in the transport sector once again demonstrates the need to push ahead with the development of emission-free propulsion technologies. Hydrogen internal combustion engines are particularly attractive for heavy-duty vehicles because they open up another path for entry into H2 mobility. Hydrogen combustion is being tested at the IAV site in Gifhorn, where truck engines weighing up to 7 tons can be tested.
During the test setup, the motor receives different temperature and pressure measuring points. In the exhaust system, for example, up to 1,250 degrees Celsius can be measured. The pressure measuring points can hold values in the division from minus 5 to plus 100 bar.
A total of 128 channels are available for the recording of physical measured variables.
At the same time, IAV always simulates the complete vehicle on the test bench, according to the requirements of the engine to be tested and when any control units are integrated. With the help of an application system, for example INCA from ETAS, IAV experts can modify data and measure the reaction of the engine.
The test bench is supplied with hydrogen via a separate line. The internal combustion engine can currently be supplied with a maximum of 50 kg/h at 30 bar. The system is currently in a second stage of construction, after which a test specimen can be supplied with a maximum pressure of 80 bar at the end of 2021. At the same time, the tank system is being expanded and the hydrogen storage volume tripled.