Zero-dimensional modeling of NOx formation with least squares interpolation
(2014) In International Journal of Engine Research 15(8). p.944-953- Abstract
- Physical models of NOx formation are becoming more and more interesting in the area of combustion feedback control. The fact that cylinder pressure sensors are made available on the market enables fast and accurate calculations of heat release, which is an essential part of every physical NOx formation model. This article describes such a zero-dimensional model for a diesel engine using crank angle-resolved cylinder pressure to determine heat release. The model also incorporates the thermal effect of exhaust gas recirculation that is proven to have a major effect on NOx formation rates. The reaction mechanisms used to describe NOx formation rates are given by the well-known Zeldovich mechanism. The model output results given in this... (More)
- Physical models of NOx formation are becoming more and more interesting in the area of combustion feedback control. The fact that cylinder pressure sensors are made available on the market enables fast and accurate calculations of heat release, which is an essential part of every physical NOx formation model. This article describes such a zero-dimensional model for a diesel engine using crank angle-resolved cylinder pressure to determine heat release. The model also incorporates the thermal effect of exhaust gas recirculation that is proven to have a major effect on NOx formation rates. The reaction mechanisms used to describe NOx formation rates are given by the well-known Zeldovich mechanism. The model output results given in this article show an average deviation of about 12.0% from acquired measured NOx data. The least squares interpolation approach indicates a negligible difference from the original model with an average deviation of 1.2% in 25 measurement points. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4982914
- author
- Muric, Kenan ; Stenlaas, Ola and Tunestål, Per LU
- organization
- publishing date
- 2014
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- NOx, model, Zeldovich, interpolation, zero-dimensional, engine, thermodynamics
- in
- International Journal of Engine Research
- volume
- 15
- issue
- 8
- pages
- 944 - 953
- publisher
- Professional Engineering Publishing
- external identifiers
-
- wos:000345300200007
- scopus:84911439942
- ISSN
- 1468-0874
- DOI
- 10.1177/1468087413495843
- project
- Closed-Loop Diesel Control - Part 2
- language
- English
- LU publication?
- yes
- id
- 010d54b9-ca8d-44a7-a50f-c0143f826c2d (old id 4982914)
- date added to LUP
- 2016-04-01 13:25:27
- date last changed
- 2022-01-27 19:08:36
@article{010d54b9-ca8d-44a7-a50f-c0143f826c2d,
abstract = {{Physical models of NOx formation are becoming more and more interesting in the area of combustion feedback control. The fact that cylinder pressure sensors are made available on the market enables fast and accurate calculations of heat release, which is an essential part of every physical NOx formation model. This article describes such a zero-dimensional model for a diesel engine using crank angle-resolved cylinder pressure to determine heat release. The model also incorporates the thermal effect of exhaust gas recirculation that is proven to have a major effect on NOx formation rates. The reaction mechanisms used to describe NOx formation rates are given by the well-known Zeldovich mechanism. The model output results given in this article show an average deviation of about 12.0% from acquired measured NOx data. The least squares interpolation approach indicates a negligible difference from the original model with an average deviation of 1.2% in 25 measurement points.}},
author = {{Muric, Kenan and Stenlaas, Ola and Tunestål, Per}},
issn = {{1468-0874}},
keywords = {{NOx; model; Zeldovich; interpolation; zero-dimensional; engine; thermodynamics}},
language = {{eng}},
number = {{8}},
pages = {{944--953}},
publisher = {{Professional Engineering Publishing}},
series = {{International Journal of Engine Research}},
title = {{Zero-dimensional modeling of NOx formation with least squares interpolation}},
url = {{http://dx.doi.org/10.1177/1468087413495843}},
doi = {{10.1177/1468087413495843}},
volume = {{15}},
year = {{2014}},
}