dc.identifier.uri |
http://dx.doi.org/10.15488/3036 |
|
dc.identifier.uri |
http://www.repo.uni-hannover.de/handle/123456789/3066 |
|
dc.contributor.author |
Rezaei, Reza
|
|
dc.contributor.author |
Dinkelacker, Friedrich
|
|
dc.contributor.author |
Tilch, Benjamin
|
|
dc.contributor.author |
Delebinski, Thaddaeus
|
|
dc.contributor.author |
Brauer, Maximilian
|
|
dc.date.accessioned |
2018-03-01T12:59:31Z |
|
dc.date.available |
2018-03-01T12:59:31Z |
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dc.date.issued |
2016 |
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dc.identifier.citation |
Rezaei, R.; Dinkelacker, F.; Tilch, B.; Delebinski, T.; Brauer, M.: Phenomenological modeling of combustion and NOx emissions using detailed tabulated chemistry methods in diesel engines. In: International Journal of Engine Research 17 (2016), Nr. 8, S. 846-856. DOI: https://doi.org/10.1177/1468087415619302 |
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dc.description.abstract |
Enhancing the predictive quality of engine models, while maintaining an affordable computational cost, is of great importance. In this study, a phenomenological combustion and a tabulated NOx model, focusing on efficient modeling and improvement of computational effort, is presented. The proposed approach employs physical and chemical sub-models for local processes such as injection, spray formation, ignition, combustion, and NOx formation, being based on detailed tabulated chemistry methods. The applied combustion model accounts for the turbulence-controlled as well as the chemistry-controlled combustion. The phenomenological combustion model is first assessed for passenger car application, especially with multiple pilot injections and high exhaust gas recirculation ratios for low-load operating points. The validation results are presented for representative operating conditions from a single-cylinder light-duty diesel engine and over the entire engine map of a heavy-duty diesel engine. In the second part of this study, a novel approach for accurate and very fast modeling of NO formation in combustion engines is proposed. The major focus of this study is on the development of a very fast-running NO mechanism for usage in the next generation of the engine control units. This approach is based on tabulation of a detailed chemical kinetic mechanism and is validated against the detailed chemical reaction mechanism at all engine-relevant conditions with the variation in pressure, temperature, and air-fuel ratio under stationary and ramp-type transient conditions in a perfectly stirred reactor. Using this approach, a very good match to the results from calculations with the detailed chemical mechanism is observed. Finally, the tabulated NOx kinetic model is implemented in the combustion model for in-cylinder NOx prediction and compared with the experimental engine measurement data. © 2015 Institution of Mechanical Engineers. |
eng |
dc.language.iso |
eng |
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dc.publisher |
London : SAGE Publications Ltd. |
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dc.relation.ispartofseries |
International Journal of Engine Research 17 (2016), Nr. 8 |
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dc.rights |
Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. Dieser Beitrag ist aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich. |
|
dc.subject |
combustion |
eng |
dc.subject |
Diesel engine |
eng |
dc.subject |
NOx emissions |
eng |
dc.subject |
phenomenological modeling |
eng |
dc.subject |
reaction kinetics |
eng |
dc.subject |
Combustion |
eng |
dc.subject |
Engine cylinders |
eng |
dc.subject |
Engines |
eng |
dc.subject |
Exhaust gas recirculation |
eng |
dc.subject |
Exhaust gases |
eng |
dc.subject |
Ignition |
eng |
dc.subject |
Kinetics |
eng |
dc.subject |
Reaction kinetics |
eng |
dc.subject |
Computational effort |
eng |
dc.subject |
Detailed chemical kinetic |
eng |
dc.subject |
Heavy-duty diesel engine |
eng |
dc.subject |
Light-duty diesel engines |
eng |
dc.subject |
NOx emissions |
eng |
dc.subject |
Perfectly stirred reactor |
eng |
dc.subject |
Phenomenological modeling |
eng |
dc.subject |
Transient conditions |
eng |
dc.subject |
Diesel engines |
eng |
dc.subject.ddc |
621 | Angewandte Physik
|
ger |
dc.title |
Phenomenological modeling of combustion and NOx emissions using detailed tabulated chemistry methods in diesel engines |
|
dc.type |
Article |
|
dc.type |
Text |
|
dc.relation.issn |
1468-0874 |
|
dc.relation.doi |
https://doi.org/10.1177/1468087415619302 |
|
dc.bibliographicCitation.issue |
8 |
|
dc.bibliographicCitation.volume |
17 |
|
dc.bibliographicCitation.firstPage |
846 |
|
dc.bibliographicCitation.lastPage |
856 |
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dc.description.version |
publishedVersion |
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tib.accessRights |
frei zug�nglich |
|