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@ARTICLE{Schilling:877604,
author = {Schilling, Johannes and Eichler, Katharina and Kölsch,
Benedikt and Pischinger, Stefan and Bardow, André},
title = {{I}ntegrated design of working fluid and organic {R}ankine
cycle utilizing transient exhaust gases of heavy-duty
vehicles},
journal = {Applied energy},
volume = {255},
issn = {0306-2619},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {FZJ-2020-02319},
pages = {113207 -},
year = {2019},
abstract = {Heavy-duty vehicles waste a major part of their fuel energy
in the exhaust gas. To recover energy from the exhaust gas,
Organic Rankine Cycles are a promising technology. However,
both, the Organic Rankine Cycle and its working fluid have
to be tailored to the transient energy input by the exhaust
gas. For this purpose, we developed the so-called 1-stage
Continuous-Molecular Targeting - Computer-aided Molecular
Design (1-stage CoMT-CAMD) method. 1-stage CoMT-CAMD
integrates the design of novel working fluids as degree of
freedom into the process optimization. However, so far,
1-stage CoMT-CAMD is limited to a nominal operating point.
In this work, we enable the integrated design for transient
heat sources by combining 1-stage CoMT-CAMD with aggregation
techniques. Aggregation techniques allow us to represent the
many operating points due to the transient heat source by a
few aggregated operating points serving as input for the
integrated design. A subsequent assessment of the identified
working fluids ensures safety and environmental
friendliness. The resulting algorithm is applied to the
design of an Organic Rankine Cycle on heavy-duty vehicles
using the VECTO long haul cycle to characterize the
transient exhaust gas. For this case study, 6 aggregated
operating points are sufficient to represent the transient
exhaust gas accurately. The optimal identified working fluid
is ethyl formate and increases the net power output by
$30\%$ compared to the commonly used working fluid ethanol.},
cin = {IEK-10},
ddc = {620},
cid = {I:(DE-Juel1)IEK-10-20170217},
pnm = {899 - ohne Topic (POF3-899)},
pid = {G:(DE-HGF)POF3-899},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000497978100001},
doi = {10.1016/j.apenergy.2019.05.010},
url = {https://juser.fz-juelich.de/record/877604},
}