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@ARTICLE{Fleitmann:972117,
author = {Fleitmann, Lorenz and Ackermann, Philipp and Schilling,
Johannes and Kleinekorte, Johanna and Rittig, Jan G. and vom
Lehn, Florian and Schweidtmann, Artur M. and Pitsch, Heinz
and Leonhard, Kai and Mitsos, Alexander and Bardow, André
and Dahmen, Manuel},
title = {{M}olecular {D}esign of {F}uels for {M}aximum
{S}park-{I}gnition {E}ngine {E}fficiency by {C}ombining
{P}redictive {T}hermodynamics and {M}achine {L}earning},
journal = {Energy $\&$ fuels},
volume = {37},
number = {3},
issn = {0887-0624},
address = {Columbus, Ohio},
publisher = {American Chemical Society},
reportid = {FZJ-2023-01079},
pages = {2213–2229},
year = {2023},
abstract = {Co-design of alternative fuels and future spark-ignition
(SI) engines allows very high engine efficiencies to be
achieved. To tailor the fuel’s molecular structure to the
needs of SI engines with very high compression ratios,
computer-aided molecular design (CAMD) of renewable fuels
has received considerable attention over the past decade. To
date, CAMD for fuels is typically performed by
computationally screening the physicochemical properties of
single molecules against property targets. However,
achievable SI engine efficiency is the result of the
combined effect of various fuel properties, and molecules
should not be discarded because of individual unfavorable
properties that can be compensated for. Therefore, we
present an optimization-based fuel design method directly
targeting SI engine efficiency as the objective function.
Specifically, we employ an empirical model to assess the
achievable relative engine efficiency increase compared to
conventional RON95 gasoline for each candidate fuel as a
function of fuel properties. For this purpose, we integrate
the automated prediction of various fuel properties into the
fuel design method: Thermodynamic properties are calculated
by COSMO-RS; combustion properties, indicators for
environment, health and safety, and synthesizability are
predicted using machine learning models. The method is
applied to design pure-component fuels and binary
ethanol-containing fuel blends. The optimal pure-component
fuel tert-butyl formate is predicted to yield a relative
efficiency increase of approximately $8\%$ and the optimal
fuel blend with ethanol and
3,4-dimethyl-3-propan-2-yl-1-pentene of $19\%.$},
cin = {IEK-10},
ddc = {660},
cid = {I:(DE-Juel1)IEK-10-20170217},
pnm = {1121 - Digitalization and Systems Technology for
Flexibility Solutions (POF4-112)},
pid = {G:(DE-HGF)POF4-1121},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000925002500001},
doi = {10.1021/acs.energyfuels.2c03296},
url = {https://juser.fz-juelich.de/record/972117},
}