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Listar por palabra clave "Combustion diagnosis"

Mostrando ítems 1-8 de 8

A direct transform for determining the trapped mass on an internal combustion engine based on the in-cylinder pressure resonance phenomenon

Broatch Jacobi, Jaime Alberto; Guardiola García, Carlos; Plá Moreno, Benjamín; Bares Moreno, Pau (Elsevier, 2015-10)

It has lately been demonstrated that the resonance of the in-cylinder pressure may be used for inferring the trapped mass in an internal combustion engine. The resonance frequency changes over time as the expansion stroke ...
A new methodology for uncertainties characterization in combustion diagnosis and thermodynamic modelling

Benajes Calvo, Jesus Vicente; Olmeda González, Pablo Cesar; Martín Díaz, Jaime; Carreño Arango, Ricardo (Elsevier, 2014-10-05)

Combustion diagnosis based on in-cylinder pressure signals as well as 0D thermodynamic modelling, are widely used to study and optimize the combustion in reciprocating engines. Both approaches share some uncertainties ...
An adapted heat transfer model for engines with tumble motion

Olmeda González, Pablo Cesar; Martín Díaz, Jaime; Novella Rosa, Ricardo; Carreño, Ricardo (Elsevier, 2015-11-15)

In the last years, a growing interest about increasing the engine efficiency has led to the development of new engine technologies. The accurate determination of the heat transfer across the combustion chamber walls is ...
Aportación a la mejora del fiagnóstico de la combustión y balances de energía para motores de combustión interna alternativos

Carreño Arango, Ricardo (Universitat Politècnica de València, 2014-09-25)

[EN] In the last 20 years, the research in engines has been centered principally in reducing the emissions and fulfills the normative. However, due to the high exigency of the current normative, the use of after treatment ...
Determination of the resonance response in an engine cylinder with a bowl-in-piston geometry by the finite element method for inferring the trapped mass

Broatch Jacobi, Jaime Alberto; Guardiola, Carlos; Bares-Moreno, Pau; Denia Guzmán, Francisco David (SAGE Publications (UK and US), 2016)

[EN] Cylinder resonance phenomenon in reciprocating engines consists of high-frequency pressure oscillations excited by the combustion. The frequency of these oscillations is proportional to the speed of sound on pent-roof ...
Estimation of trapped mass by in-cylinder pressure resonance in HCCI engines

Luján, José M.; Guardiola, Carlos; Plá Moreno, Benjamín; Bares-Moreno, Pau (Elsevier, 2016-01)

High pressure gradients at homogeneous charge compression ignition (HCCI) engines heavily excite the pressure resonance. The pressure resonant frequency depends on speed of sound in the cylinder, and thus on the bulk gas ...
In-cylinder pressure smart sampling for efficient data management

Pla Moreno, Benjamín; De La Morena, Joaquín; Bares-Moreno, Pau; Jimenez, Irina Ayelen (SAGE Publications, 2023-07)

[EN] The present paper proposes an optimized algorithm for minimizing the amount of data processed in order to maintain all critical information from the in-cylinder pressure sensor but with minimum computational cost. The ...
Mejora de una herramienta de diagnóstico de la combustión mediante la implementación de un modelo de llenado-vaciado

Olmeda Ramiro, Iván (Universitat Politècnica de València, 2018-10-25)

[ES] Actualmente, la inquietud por parte de las empresas punteras en automoción por las cada vez más estrictas normativas de emisiones y los nuevos ciclos de homologación de motores hace que el estudio en profundidad de ...