A3-Etoh - High efficiency low NOx hydrogen / Ethanol hybrid engine

Project: Research project

Description

Within the scope of the A3 research program this project handles research and development activities of a high efficiency low NOx hydrogen / ethanol hybrid engine. Particularly the operation of pure hydrogen and blends of gases using hydrogen shows excellent forward-looking fields of applications. Both raw fuels can be produced using high developed technologies (e.g. gasification of biomass, fermentation) from renewable energy sources. Within the scope of pilot projects namable companies have already tested gasoline engine applicated vehicles operated with hydrogen (BMW, MAN,). Actually hydrogen-applicated engines are operated stoichiometrically for meeting the present emission regulations.
Comparing this kind of combustion process to the lean burn engine technology the hydrogen application affects the efficiency adversely. For this reason the lean burn engine technology established in the field of stationary operated engines. In general especially research and development in the field of large engines effected milestones in development of engine technology which is also demonstrated in the present project. After having gained practical results at large engines accretions of technologies are going to be transferred to automotive applications.
The key goal of this project characterizes the optimization of a large gaseous fueled engine used for stationary application, rail traction and ship propulsion for the operation with pure hydrogen and mixtures of hydrogen and CO2 by using a single cylinder research engine. The fuel sources are hydrogen from wind energy and blends of hydrogen and CO2 made of geothermal hydrogen as well as gases form biomass gasification with a large content of hydrogen. Geothermal blends of hydrogen and CO2 pose a challenge for an efficient use because of the contamination with H2S. So a variety of desulfurization methods have to be evaluated to define a cost-benefit-optimum.
Especially within the project part geothermal hydrogen the prospect of the development of a completely new resource is shown whereof hydrogen opens up widespread fields of applications. Even hydrogen coming out of wind energy is able to be operated in low-emission IC-engines. Storage of excessive hydrogen from wind energy brings the advantage of producing defined power requirement (surge current) on time by operating a specially hydrogen-applicated gas engine. This characteristic is going to become a trend-setting innovation in non-stationary applications like rail traction, ship propulsion and automotive areas.
StatusFinished
Effective start/end date1/04/0731/03/09