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Optimal control as a method for diesel engine efficiency assessment including pressure and NOx constraints

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Optimal control as a method for diesel engine efficiency assessment including pressure and NOx constraints

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dc.contributor.author Guardiola, Carlos es_ES
dc.contributor.author Climent, H. es_ES
dc.contributor.author Plá Moreno, Benjamín es_ES
dc.contributor.author Reig, Alberto es_ES
dc.date.accessioned 2018-06-11T04:30:58Z
dc.date.available 2018-06-11T04:30:58Z
dc.date.issued 2017 es_ES
dc.identifier.issn 1359-4311 es_ES
dc.identifier.uri http://hdl.handle.net/10251/103789
dc.description.abstract [EN] The present paper studies the optimal heat release law in a Diesel engine to maximise the indicated efficiency subject to different constraints, namely: maximum cylinder pressure, maximum cylinder pressure derivative, and NOx emission restrictions. With this objective, a simple but also representative model of the combustion process has been implemented. The model consists of a OD energy balance model aimed to provide the pressure and temperature evolutions in the high pressure loop of the engine thermodynamic cycle from the gas conditions at the intake valve closing and the heat release law. The gas pressure and temperature evolutions allow to compute the engine efficiency and NOx emissions. The comparison between model and experimental results shows that despite the model simplicity, it is able to reproduce the engine efficiency and NOx emissions. After the model identification and validation, the optimal control problem is posed and solved by means of Dynamic Programming (DP). Also, if only pressure constraints are considered, the paper proposes a solution that reduces the computation cost of the DP strategy in two orders of magnitude for the case being analysed. The solution provides a target heat release law to define injection strategies but also a more realistic maximum efficiency boundary than the ideal thermodynamic cycles usually employed to estimate the maximum engine efficiency. (C) 2017 Elsevier Ltd. All rights reserved. es_ES
dc.description.sponsorship Thanks are due to the Ministerio de Economia y Competitividad by its financial support through project mu-Balance (TRA2013-41348-R).
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation MINECO/TRA2013-41348-R es_ES
dc.relation.ispartof Applied Thermal Engineering es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Diesel engine es_ES
dc.subject Combustion analysis es_ES
dc.subject Optimal control es_ES
dc.subject Dynamic programming es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title Optimal control as a method for diesel engine efficiency assessment including pressure and NOx constraints es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.applthermaleng.2017.02.056 es_ES
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 Guardiola, C.; Climent, H.; Pla Moreno, B.; Reig, A. (2017). Optimal control as a method for diesel engine efficiency assessment including pressure and NOx constraints. Applied Thermal Engineering. 117:452-461. doi:10.1016/j.applthermaleng.2017.02.056 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://doi.org/10.1016/j.applthermaleng.2017.02.056 es_ES
dc.description.upvformatpinicio 452 es_ES
dc.description.upvformatpfin 461 es_ES
dc.type.version info:eu repo/semantics/publishedVersion es_ES
dc.description.volume 117 es_ES
dc.relation.pasarela 335920 es_ES
dc.contributor.funder MINISTERIO DE ECONOMIA INDUSTRIA Y COMPETITIVIDAD es_ES


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