A computational study of multiple injection strategies in compression ignition engines at high pressure

Gustav Nyrenstedt; Mohammed Jaasim; Eshan Singh; Rafig Babayev; Hong G. Im; Mani Sarathy; Bengt Johansson

A computational study of multiple injection strategies in compression ignition engines at high pressure

Gustav Nyrenstedt, Mohammed Jaasim, Eshan Singh, Rafig Babayev, Hong G. Im, Mani Sarathy, Bengt Johansson

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Higher efficiency can be achieved by heat release control in order to get more ideal combustion and so extraction of maximum possible work. Concepts of multiple injectors are expected to increase the ability to control the heat release as well as decrease interference between the sprays. Computational Fluid Dynamics (CFD) studies on a Volvo D13 with altered compression ratio have been performed with n-heptane as fuel. The computations were used to derive methods that lead to constant pressure combustion utilizing three injectors with split injection strategies. Also the chemical mechanism used was validated, through Chemkin simulations, for the high pressure. Promising CFD results with high pressures and control over the heat release were obtained. Isobaric combustion was achieved at pressures of up to 300 bar.

Original language	English (US)
Title of host publication	11th Asia-Pacific Conference on Combustion, ASPACC 2017
Publisher	Combustion Institute
State	Published - Jan 1 2017

Bibliographical note

KAUST Repository Item: Exported on 2020-12-31
Acknowledgements: The simulations in this work were performed with the financial sponsorship of KAUST at the computing resources from KSL. Simulations in Converge were aided by Volvo Trucks.

Cite this

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title = "A computational study of multiple injection strategies in compression ignition engines at high pressure",

abstract = "Higher efficiency can be achieved by heat release control in order to get more ideal combustion and so extraction of maximum possible work. Concepts of multiple injectors are expected to increase the ability to control the heat release as well as decrease interference between the sprays. Computational Fluid Dynamics (CFD) studies on a Volvo D13 with altered compression ratio have been performed with n-heptane as fuel. The computations were used to derive methods that lead to constant pressure combustion utilizing three injectors with split injection strategies. Also the chemical mechanism used was validated, through Chemkin simulations, for the high pressure. Promising CFD results with high pressures and control over the heat release were obtained. Isobaric combustion was achieved at pressures of up to 300 bar.",

author = "Gustav Nyrenstedt and Mohammed Jaasim and Eshan Singh and Rafig Babayev and Im, {Hong G.} and Mani Sarathy and Bengt Johansson",

note = "KAUST Repository Item: Exported on 2020-12-31 Acknowledgements: The simulations in this work were performed with the financial sponsorship of KAUST at the computing resources from KSL. Simulations in Converge were aided by Volvo Trucks.",

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language = "English (US)",

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T1 - A computational study of multiple injection strategies in compression ignition engines at high pressure

AU - Nyrenstedt, Gustav

AU - Jaasim, Mohammed

AU - Singh, Eshan

AU - Babayev, Rafig

AU - Im, Hong G.

AU - Sarathy, Mani

AU - Johansson, Bengt

N1 - KAUST Repository Item: Exported on 2020-12-31 Acknowledgements: The simulations in this work were performed with the financial sponsorship of KAUST at the computing resources from KSL. Simulations in Converge were aided by Volvo Trucks.

PY - 2017/1/1

Y1 - 2017/1/1

N2 - Higher efficiency can be achieved by heat release control in order to get more ideal combustion and so extraction of maximum possible work. Concepts of multiple injectors are expected to increase the ability to control the heat release as well as decrease interference between the sprays. Computational Fluid Dynamics (CFD) studies on a Volvo D13 with altered compression ratio have been performed with n-heptane as fuel. The computations were used to derive methods that lead to constant pressure combustion utilizing three injectors with split injection strategies. Also the chemical mechanism used was validated, through Chemkin simulations, for the high pressure. Promising CFD results with high pressures and control over the heat release were obtained. Isobaric combustion was achieved at pressures of up to 300 bar.

AB - Higher efficiency can be achieved by heat release control in order to get more ideal combustion and so extraction of maximum possible work. Concepts of multiple injectors are expected to increase the ability to control the heat release as well as decrease interference between the sprays. Computational Fluid Dynamics (CFD) studies on a Volvo D13 with altered compression ratio have been performed with n-heptane as fuel. The computations were used to derive methods that lead to constant pressure combustion utilizing three injectors with split injection strategies. Also the chemical mechanism used was validated, through Chemkin simulations, for the high pressure. Promising CFD results with high pressures and control over the heat release were obtained. Isobaric combustion was achieved at pressures of up to 300 bar.

UR - http://hdl.handle.net/10754/666765

UR - https://research.kaust.edu.sa/en/publications/a-computational-study-of-multiple-injection-strategies-in-compres

UR - http://www.scopus.com/inward/record.url?scp=85046464617&partnerID=8YFLogxK

M3 - Conference contribution

BT - 11th Asia-Pacific Conference on Combustion, ASPACC 2017

PB - Combustion Institute

ER -

A computational study of multiple injection strategies in compression ignition engines at high pressure

Abstract

Bibliographical note

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