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Validation of a Novel Self Tuning Gross Heat Release Algorithm

Manente, Vittorio LU ; Tunestål, Per LU and Johansson, Bengt LU (2008) SAE International Powertrains, Fuels and Lubricants Congress In SAE Technical Paper Series 2008-01-1672.
Abstract
The present paper shows the validation of a self tuning heat release method with no need to model heat losses, crevice losses and blow by. Using the pressure and volume traces the method estimates the polytropic exponents (before, during and after the combustion event), by the use of the emission values and amount of fuel injected per cycle the algorithm calculates the total heat release. These four inputs are subsequently used for computing the heat release trace. The result is a user independent algorithm which results in more objective comparisons among operating points and different engines.



In the present paper the heat release calculated with this novel method has been compared with the one computed using the... (More)
The present paper shows the validation of a self tuning heat release method with no need to model heat losses, crevice losses and blow by. Using the pressure and volume traces the method estimates the polytropic exponents (before, during and after the combustion event), by the use of the emission values and amount of fuel injected per cycle the algorithm calculates the total heat release. These four inputs are subsequently used for computing the heat release trace. The result is a user independent algorithm which results in more objective comparisons among operating points and different engines.



In the present paper the heat release calculated with this novel method has been compared with the one computed using the Woschni correlation for modeling the heat transfer. The comparison has been made using different fuels (PRF0, PRF80, ethanol and iso-octane) making sweeps in relative air-fuel ratio, engine speed, EGR and CA 50. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Internal Combustion Engines, Heat Release, Cylinder Pressure
in
SAE Technical Paper Series
volume
2008-01-1672
publisher
Society of Automotive Engineers
conference name
SAE International Powertrains, Fuels and Lubricants Congress
external identifiers
  • scopus:84877463505
ISSN
0148-7191
DOI
10.4271/2008-01-1672
language
English
LU publication?
yes
id
9a856bac-e67a-415a-a81c-744a5b2b9809 (old id 1395928)
alternative location
http://papers.sae.org/2008-01-1672/
date added to LUP
2014-02-24 13:28:02
date last changed
2017-04-30 10:18:12
@inproceedings{9a856bac-e67a-415a-a81c-744a5b2b9809,
  abstract     = {The present paper shows the validation of a self tuning heat release method with no need to model heat losses, crevice losses and blow by. Using the pressure and volume traces the method estimates the polytropic exponents (before, during and after the combustion event), by the use of the emission values and amount of fuel injected per cycle the algorithm calculates the total heat release. These four inputs are subsequently used for computing the heat release trace. The result is a user independent algorithm which results in more objective comparisons among operating points and different engines.<br/><br>
<br/><br>
In the present paper the heat release calculated with this novel method has been compared with the one computed using the Woschni correlation for modeling the heat transfer. The comparison has been made using different fuels (PRF0, PRF80, ethanol and iso-octane) making sweeps in relative air-fuel ratio, engine speed, EGR and CA 50.},
  author       = {Manente, Vittorio and Tunestål, Per and Johansson, Bengt},
  booktitle    = {SAE Technical Paper Series},
  issn         = {0148-7191},
  keyword      = {Internal Combustion Engines,Heat Release,Cylinder Pressure},
  language     = {eng},
  publisher    = {Society of Automotive Engineers},
  title        = {Validation of a Novel Self Tuning Gross Heat Release Algorithm},
  url          = {http://dx.doi.org/10.4271/2008-01-1672},
  volume       = {2008-01-1672},
  year         = {2008},
}