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Internal Combustion Engines
Engine design and simulation, combustion technologies, and experimental evaluation
n
The focus of the Chair of Internal Combustion Engines is to extend the efforts on the reduction of
engine-out emissions by enhancing combustion technology, engine after-treatment, emission meas-
urement techniques, and the knowledge on fuel properties and fuel composition. Favorable emis-
sion behavior, a high efficiency and low complexity of internal combustion engines will be crucial
in the future, as alternative drive technologies emerge. Especially for long-distance or high-power
applications, internal combustion engines will for a long time ensure clean and sustainable mobility
and energy supply today and tomorrow.
A highlight in 2017 were the first experimental results
using dimethyl carbonate (DMC) and methyl formate
(MeFo) as fuel in a spark ignited engine. These fuels burn
with ultra low emission of particles and also reduce NO
x
and hydrocarbon emissions significantly. DMC and MeFo
are E-fuels, that means they can be produced using green
electricity as primary energy and thus feature a carbon-
neutral means of energy storage for mobile applications
which require high energy density. At the same time, their
low emission of pollutants reduces the necessary efforts
of exhaust after-treatment and contributes to the improve-
ment of air quality.
Test bench with gasoline single cylinder engine for clean DMC/MeFo fuel