Naslov
Numerical modelling of e-fuel combustion process for a future passenger car compression ignition engine

Autori
Marković, Marijan ; Jurić, Filip ; Pečever Šošić, Dominik ; Priesching, Peter ; Schmalhorst, Carsten ; Vujanović, Milan

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Skup
5th South East European Conference on Sustainable Development of Energy, Water and Environmental Systems (SEE SDEWES)

Mjesto i datum
Vlora, Albanija, 22.05.2022. - 26.05.2022

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Computational Fluid Dynamics, e-fuel, OME-3, engine, multi-injection, ECFM-3Z

Sažetak
Given the recent energy trends in the transport sector to pursue carbon-neutral fuels, e-fuels are arising as a suitable replacement for conventional fuels in the transportation sector. In this paper, a research of applying polyoxymethylene dimethyl ether 3 (OME3) as a prominent e-fuel to substitute the conventional diesel fuel is given. To adequately simulate the combustion process, two approaches are employed: General Gas Phase Reactions (GGPR) with detailed chemical kinetics and combustion model three-dimensional Extended Coherent Flame Model (ECFM-3Z). The ECFM-3Z model is employed as an adequate solution that describes autoignition, premixed, and diffusion flames, calculating transport equations only for certain chemical species, thus saving computing power and time compared to the detailed chemical kinetics. The validation of the GGPR approach is performed in computational fluid dynamics software AVL FIRE™ on the existing experimental results for diesel fuel and compared with the mean temperature, pressure, and rate of heat released experimental data. Additionally, the scope of this analysis includes examinations of single injection and multi-injection operating conditions inside an industrial compression ignition engine for OME-3 fuel, each examined for different regimes with different injection rates. The simulations confirmed that due to the inferior lower heating value of OME-3 compared to the diesel fuel, OME-3 offers less energy 2 per mass, meaning that the amount of fuel and injection rates are required to be higher to provide the same output power as conventional fuel.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

Napomena
Given the recent energy trends in the transport
sector to pursue carbon-neutral fuels, e-fuels are
arising as a suitable replacement for conventional
fuels in the transportation sector. In this paper,
a research of applying polyoxymethylene dimethyl
ether 3 (OME3) as a prominent e-fuel to substitute
the conventional diesel fuel is given. To
adequately simulate the combustion process, two
approaches are employed: General Gas Phase
Reactions (GGPR) with detailed chemical kinetics
and combustion model three-dimensional Extended
Coherent Flame Model (ECFM-3Z). The ECFM-3Z model
is employed as an adequate solution that describes
autoignition, premixed, and diffusion flames,
calculating transport equations only for certain
chemical species, thus saving computing power and
time compared to the detailed chemical kinetics.
The validation of the GGPR approach is performed
in computational fluid dynamics software AVL FIRE™
on the existing experimental results for diesel
fuel and compared with the mean temperature,
pressure, and rate of heat released experimental
data. Additionally, the scope of this analysis
includes examinations of single injection and
multi-injection operating conditions inside an
industrial compression ignition engine for OME-3
fuel, each examined for different regimes with
different injection rates. The simulations
confirmed that due to the inferior lower heating
value of OME-3 compared to the diesel fuel, OME-3
offers less energy
2
per mass, meaning that the amount of fuel and
injection rates are required to be higher to
provide the same output power as conventional
fuel.

POVEZANOST RADA