Modeling of the ion current developed in a direct-injection diesel engine

Rahul Srinivas Rao; Damon Robert Honnery

Modeling of the ion current developed in a direct-injection diesel engine

Rahul Srinivas Rao, Damon Robert Honnery

Mechanical & Aerospace Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review

Abstract

This paper presents a modelling study of the ion current produced in a direct-injection diesel engine. A phenomenological diesel engine model is developed that uses established spray, entrainment and heat transfer submodels and an ionic mechanism for n-heptane to solve for heat release, species concentrations and the ion current in the combustion chamber at different engine load settings. These predictions are compared to experimental results. Good agreement is found for the in-cylinder pressure and apparent heat release rate, with average absolute errors of 2.98% and 9.36% respectively. The ion current peaks are predicted fairly well with an average absolute error of 12.56%. The widths of the ion current peaks are significantly under-predicted and their positive offset due to soot is not modelled.

Original language	English
Title of host publication	Australian Combustion Symposium 2015 Proceedings
Editors	Yi Yang, Nigel Smith
Place of Publication	Melbourne Australia
Publisher	The Combustion Institute - Australian and New Zealand Section
Pages	52 - 55
Number of pages	4
Publication status	Published - 2015
Event	Australian Combustion Symposium 2015 - University of Melbourne, Melbourne, Australia Duration: 7 Dec 2015 → 9 Dec 2015

Conference

Conference	Australian Combustion Symposium 2015
Country/Territory	Australia
City	Melbourne
Period	7/12/15 → 9/12/15

Cite this

@inproceedings{e26531052cbc48bc97238c290b082719,

title = "Modeling of the ion current developed in a direct-injection diesel engine",

abstract = "This paper presents a modelling study of the ion current produced in a direct-injection diesel engine. A phenomenological diesel engine model is developed that uses established spray, entrainment and heat transfer submodels and an ionic mechanism for n-heptane to solve for heat release, species concentrations and the ion current in the combustion chamber at different engine load settings. These predictions are compared to experimental results. Good agreement is found for the in-cylinder pressure and apparent heat release rate, with average absolute errors of 2.98% and 9.36% respectively. The ion current peaks are predicted fairly well with an average absolute error of 12.56%. The widths of the ion current peaks are significantly under-predicted and their positive offset due to soot is not modelled.",

author = "Rao, {Rahul Srinivas} and Honnery, {Damon Robert}",

year = "2015",

language = "English",

pages = "52 -- 55",

editor = "Yi Yang and Nigel Smith",

booktitle = "Australian Combustion Symposium 2015 Proceedings",

publisher = "The Combustion Institute - Australian and New Zealand Section",

note = "Australian Combustion Symposium 2015 ; Conference date: 07-12-2015 Through 09-12-2015",

}

Modeling of the ion current developed in a direct-injection diesel engine. / Rao, Rahul Srinivas; Honnery, Damon Robert.

Australian Combustion Symposium 2015 Proceedings. ed. / Yi Yang; Nigel Smith. Melbourne Australia : The Combustion Institute - Australian and New Zealand Section, 2015. p. 52 - 55.

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review

TY - GEN

T1 - Modeling of the ion current developed in a direct-injection diesel engine

AU - Rao, Rahul Srinivas

AU - Honnery, Damon Robert

PY - 2015

Y1 - 2015

N2 - This paper presents a modelling study of the ion current produced in a direct-injection diesel engine. A phenomenological diesel engine model is developed that uses established spray, entrainment and heat transfer submodels and an ionic mechanism for n-heptane to solve for heat release, species concentrations and the ion current in the combustion chamber at different engine load settings. These predictions are compared to experimental results. Good agreement is found for the in-cylinder pressure and apparent heat release rate, with average absolute errors of 2.98% and 9.36% respectively. The ion current peaks are predicted fairly well with an average absolute error of 12.56%. The widths of the ion current peaks are significantly under-predicted and their positive offset due to soot is not modelled.

AB - This paper presents a modelling study of the ion current produced in a direct-injection diesel engine. A phenomenological diesel engine model is developed that uses established spray, entrainment and heat transfer submodels and an ionic mechanism for n-heptane to solve for heat release, species concentrations and the ion current in the combustion chamber at different engine load settings. These predictions are compared to experimental results. Good agreement is found for the in-cylinder pressure and apparent heat release rate, with average absolute errors of 2.98% and 9.36% respectively. The ion current peaks are predicted fairly well with an average absolute error of 12.56%. The widths of the ion current peaks are significantly under-predicted and their positive offset due to soot is not modelled.

M3 - Conference Paper

SP - 52

EP - 55

BT - Australian Combustion Symposium 2015 Proceedings

A2 - Yang, Yi

A2 - Smith, Nigel

PB - The Combustion Institute - Australian and New Zealand Section

CY - Melbourne Australia

T2 - Australian Combustion Symposium 2015

Y2 - 7 December 2015 through 9 December 2015

ER -