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Correlations for Wiebe function parameters for combustion simulation in two-stroke small engines

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Correlations for Wiebe function parameters for combustion simulation in two-stroke small engines

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dc.contributor.author Galindo Lucas, José es_ES
dc.contributor.author Climent Puchades, Héctor es_ES
dc.contributor.author Plá Moreno, Benjamín es_ES
dc.contributor.author Jiménez Macedo, Víctor Daniel es_ES
dc.date.accessioned 2015-11-16T12:09:37Z
dc.date.available 2015-11-16T12:09:37Z
dc.date.issued 2011-05
dc.identifier.issn 1359-4311
dc.identifier.uri http://hdl.handle.net/10251/57537
dc.description.abstract Combustion simulation in two-stroke engines becomes necessary not only for engine performance prediction but also for scavenge evaluation, since in-cylinder pressure and temperature are highly influenced by combustion process evolution. Combustion simulation by using a Wiebe function is appropriate to be included in a 1D engine code for providing design criteria with fast and accurate calculations; the main drawback is the determination of the four Wiebe parameters needed to build up the in-cylinder heat release. This paper deals with a detailed methodology for heat release determination in two-stroke engines under a wide range of running conditions; obtained empirical data will serve for building ad-hoc Wiebe functions, whose four parameters will be finally correlated with engine related parameters derived from 1D simulations. Two different engines, with three exhaust systems each, varying engine speed and spark-ignition timing were used to obtain correlations far from particular situations. A multiple regression analysis stated that charge density, residual gas fraction, spark timing and mean piston speed were the significant engine parameters that influence on Wiebe parameters. Finally, two scenarios were considered regarding Wiebe parameters: (a) specific correlations different for each engine gave coefficient of multiple determination values higher than 98% when predicting indicated mean effective pressure, (b) a global correlation used for both engines provided R2 values of 93% in the 50 cc and 91% in the 125 cc engine. © 2010 Elsevier Ltd. All rights reserved. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Applied Thermal Engineering es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject HRR correlation es_ES
dc.subject Phenomenological combustion model es_ES
dc.subject Two-stroke engine es_ES
dc.subject Wiebe's function es_ES
dc.subject 1-D simulation es_ES
dc.subject Combustion pro-cess es_ES
dc.subject Combustion simulations es_ES
dc.subject Cylinder pressures es_ES
dc.subject Design criterion es_ES
dc.subject Empirical data es_ES
dc.subject Engine parameter es_ES
dc.subject Engine performance es_ES
dc.subject Engine speed es_ES
dc.subject Exhaust systems es_ES
dc.subject Function parameters es_ES
dc.subject Global correlation es_ES
dc.subject Heat release es_ES
dc.subject Ignition timing es_ES
dc.subject Indicated mean effective pressure es_ES
dc.subject Multiple regression analysis es_ES
dc.subject Residual gas es_ES
dc.subject Running conditions es_ES
dc.subject Spark timing es_ES
dc.subject Combustion es_ES
dc.subject Diesel engines es_ES
dc.subject Electric sparks es_ES
dc.subject Engine cylinders es_ES
dc.subject Heat engines es_ES
dc.subject Ignition systems es_ES
dc.subject Machine design es_ES
dc.subject Regression analysis es_ES
dc.subject Exhaust systems (engine) es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title Correlations for Wiebe function parameters for combustion simulation in two-stroke small engines es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.applthermaleng.2010.12.020
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Máquinas y Motores Térmicos - Departament de Màquines i Motors Tèrmics es_ES
dc.description.bibliographicCitation Galindo Lucas, J.; Climent Puchades, H.; Pla Moreno, B.; Jimenez Macedo, VD. (2011). Correlations for Wiebe function parameters for combustion simulation in two-stroke small engines. Applied Thermal Engineering. 31:1190-1199. doi:10.1016/j.applthermaleng.2010.12.020 es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.applthermaleng.2010.12.020 es_ES
dc.description.upvformatpinicio 1190 es_ES
dc.description.upvformatpfin 1199 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 31 es_ES
dc.relation.senia 40856 es_ES


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