Hochschule Karlsruhe Hochschule Karlsruhe - University of Applied Sciences
Hochschule Karlsruhe Hochschule Karlsruhe - University of Applied Sciences
Gasmotorentechnik

LeanStoicH2

LeanStoicH2

The 2050 climate targets call for significant expansion of combined heat and power (CHP) activities, together with the share of renewable energies. In this context, hydrogen is said to have the great potential to chemically store and transport surplus electricity from renewable energy sources in large quantities ("power-to-gas"). It is thus ideally suited to bridging the gap between CHP and climate-friendly energy sources.

In the LeanStoicH2 project, these two bridging elements are being explored in combination by working on the implementation of a hydrogen admixture on a stationary natural gas engine. Three key aspects are being investigated:

Actual information about the project

In order to be able to investigate the above parameters, the 4-cylinder naturally aspirated engine used will be set up in two variants and compared with a reference (conventional lean-burn process). The two solution variants are implemented with a stoichiometric engine operation, which allows the use of a conventional 3-way catalyst

  1. Influence on combustion behavior (flame propagation, knock tendency, etc.) and efficiency
  2. Ground emissions (NOx, HC, CO)
  3. Wear behavior of different components/assemblies (component lifetime, system costs)

Solution variant 1 also has an EGR section with integrated condenser. In this way, the recirculated exhaust gas is fed to all cylinders in a water-free and low-CO2 state. This increases efficiency while keeping raw emissions low. In solution variant 2, only a single cylinder is operated with hydrogen and 100% of its exhaust gas (anhydrous, CO2-free) is recycled (donor cylinder concept). With this design, it is hoped to achieve further efficiency advantages and lower raw emissions compared with solution variant 1.

Students

For students there is permanent the possibility to work as a research assistant (Hiwi) or in the context of project (PA, F&E) and thesis (Bachelor, Master) both at the test bench and in simulation projects. Open topics can be found under student research or by direct contact with the responsible staff member.

Contact

Project Staff

Youssef Beltaifa

Tel.: +49 (0)721 925-1816
E-mail: youssef.beltaifa@h-ka.de