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Improvement and validation of a multi-zone model for HCCI engine combustion concerning performance and emissions

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dc.contributor.author Komninos, NP en
dc.contributor.author Hountalas, DT en
dc.date.accessioned 2014-03-01T01:28:40Z
dc.date.available 2014-03-01T01:28:40Z
dc.date.issued 2008 en
dc.identifier.issn 0196-8904 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/18904
dc.subject Homogeneous Charge Compression Ignition (HCCI) en
dc.subject multi-zone model en
dc.subject validation en
dc.subject emissions formation en
dc.subject.classification Thermodynamics en
dc.subject.classification Energy & Fuels en
dc.subject.classification Mechanics en
dc.subject.classification Physics, Nuclear en
dc.title Improvement and validation of a multi-zone model for HCCI engine combustion concerning performance and emissions en
heal.type journalArticle en
heal.identifier.primary 10.1016/j.enconman.2008.05.008 en
heal.identifier.secondary http://dx.doi.org/10.1016/j.enconman.2008.05.008 en
heal.language English en
heal.publicationDate 2008 en
heal.abstract The main objective of the present work is to improve and validate a multi-zone model developed by the authors for HCCI combustion. The multi-zone model describes the heat and mass transfer mechanisms and simulates combustion and pollutant formation using a reduced chemistry reaction mechanism and chemical kinetics. The division of the combustion chamber into zones is based on geometrical considerations. Heat and mass is exchanged between zones and the cylinder wall according to their spatial configuration, throughout the compression and expansion strokes, i.e. for the closed part of engine operation. The model is improved by modelling crevice flow through the description of the motion of unburned and burned mixture in and out of the crevice regions. These regions are a significant source of unburned hydrocarbons and contribute to the formation of CO. Using the model, a description of the formation of pollutant emissions in the zones is described. For model validation, cylinder pressure, performance data and emissions obtained from the simulation are compared to experimental data taken from an engine operating on HCCI mode for three different load cases. (C) 2008 Elsevier Ltd. All rights reserved. en
heal.publisher PERGAMON-ELSEVIER SCIENCE LTD en
heal.journalName ENERGY CONVERSION AND MANAGEMENT en
dc.identifier.doi 10.1016/j.enconman.2008.05.008 en
dc.identifier.isi ISI:000259432900005 en
dc.identifier.volume 49 en
dc.identifier.issue 10 en
dc.identifier.spage 2530 en
dc.identifier.epage 2537 en


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