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Effects of pre-turbocharger turbine water injection on the sustainable performance of spark ignition engine

Water injection strategy is considered a promising technique to improve the performance of boosted engine and reduce the NOx emission via the latent heat of water vaporization. Numerous research on water injection has been conducted on in-cylinder and intake port water injection. However, the water...

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Main Authors: Veza, Ibham, Ling, Chee Huat, Abas, Mohd. Azman, Muhammad Idris, Muhammad Idris, Spraggon, Martin, Safarudin G. Herawan, Safarudin G. Herawan
Format: Article
Language:English
Published: MDPI 2023
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://eprints.utm.my/107357/1/MohdAzmanAbas2023_EffectsofPreTurbochargerTurbineWater.pdf
http://eprints.utm.my/107357/
http://dx.doi.org/10.3390/su15054559
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spelling my.utm.1073572024-09-03T06:24:33Z http://eprints.utm.my/107357/ Effects of pre-turbocharger turbine water injection on the sustainable performance of spark ignition engine Veza, Ibham Ling, Chee Huat Abas, Mohd. Azman Muhammad Idris, Muhammad Idris Spraggon, Martin Safarudin G. Herawan, Safarudin G. Herawan TJ Mechanical engineering and machinery Water injection strategy is considered a promising technique to improve the performance of boosted engine and reduce the NOx emission via the latent heat of water vaporization. Numerous research on water injection has been conducted on in-cylinder and intake port water injection. However, the water injection focusing on the spark ignition (SI) engine exhaust system is still lacking. This study proposed a pre-turbocharger turbine water injection (PTWI) concept to reduce the turbine inlet temperature. This was done so that the stoichiometric engine operation could be achieved at a medium–high load and engine speed without resorting to a fuel enrichment strategy to reduce the exhaust gas temperature. This study aims to investigate the effect of injecting water into the exhaust gas at the pre-turbine of a turbocharged spark ignition engine. This study experimented on a 1.3-L 4-cylinder turbocharged engine to collect engine data for computational fluid dynamics (CFD) baseline model validation. A one-dimensional engine model was then developed based on the 1.6-L 4-cylinder turbocharged engine experiment using AVL BOOST software. The CFD model was used to investigate the effects of water injection pressure, pipe diameter, and water injector location. The CFD results showed that a 50 mm connecting pipe with 4 bar of injection pressure gives the largest reduction in exhaust temperature. The CFD results were then applied to the one-dimensional engine model. The engine model simulation results showed that the fuel consumption could be reduced up to 13% at 4000 rpm during wide-open throttle and 75% engine load. The PTWI is a new approach, but this study has proved the potential of using water injection at the pre-turbine turbocharger to reduce the fuel consumption of a turbocharged SI engine. MDPI 2023-03 Article PeerReviewed application/pdf en http://eprints.utm.my/107357/1/MohdAzmanAbas2023_EffectsofPreTurbochargerTurbineWater.pdf Veza, Ibham and Ling, Chee Huat and Abas, Mohd. Azman and Muhammad Idris, Muhammad Idris and Spraggon, Martin and Safarudin G. Herawan, Safarudin G. Herawan (2023) Effects of pre-turbocharger turbine water injection on the sustainable performance of spark ignition engine. Sustainability (Switzerland), 15 (5). pp. 1-36. ISSN 2071-1050 http://dx.doi.org/10.3390/su15054559 DOI:10.3390/su15054559
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Veza, Ibham
Ling, Chee Huat
Abas, Mohd. Azman
Muhammad Idris, Muhammad Idris
Spraggon, Martin
Safarudin G. Herawan, Safarudin G. Herawan
Effects of pre-turbocharger turbine water injection on the sustainable performance of spark ignition engine
description Water injection strategy is considered a promising technique to improve the performance of boosted engine and reduce the NOx emission via the latent heat of water vaporization. Numerous research on water injection has been conducted on in-cylinder and intake port water injection. However, the water injection focusing on the spark ignition (SI) engine exhaust system is still lacking. This study proposed a pre-turbocharger turbine water injection (PTWI) concept to reduce the turbine inlet temperature. This was done so that the stoichiometric engine operation could be achieved at a medium–high load and engine speed without resorting to a fuel enrichment strategy to reduce the exhaust gas temperature. This study aims to investigate the effect of injecting water into the exhaust gas at the pre-turbine of a turbocharged spark ignition engine. This study experimented on a 1.3-L 4-cylinder turbocharged engine to collect engine data for computational fluid dynamics (CFD) baseline model validation. A one-dimensional engine model was then developed based on the 1.6-L 4-cylinder turbocharged engine experiment using AVL BOOST software. The CFD model was used to investigate the effects of water injection pressure, pipe diameter, and water injector location. The CFD results showed that a 50 mm connecting pipe with 4 bar of injection pressure gives the largest reduction in exhaust temperature. The CFD results were then applied to the one-dimensional engine model. The engine model simulation results showed that the fuel consumption could be reduced up to 13% at 4000 rpm during wide-open throttle and 75% engine load. The PTWI is a new approach, but this study has proved the potential of using water injection at the pre-turbine turbocharger to reduce the fuel consumption of a turbocharged SI engine.
format Article
author Veza, Ibham
Ling, Chee Huat
Abas, Mohd. Azman
Muhammad Idris, Muhammad Idris
Spraggon, Martin
Safarudin G. Herawan, Safarudin G. Herawan
author_facet Veza, Ibham
Ling, Chee Huat
Abas, Mohd. Azman
Muhammad Idris, Muhammad Idris
Spraggon, Martin
Safarudin G. Herawan, Safarudin G. Herawan
author_sort Veza, Ibham
title Effects of pre-turbocharger turbine water injection on the sustainable performance of spark ignition engine
title_short Effects of pre-turbocharger turbine water injection on the sustainable performance of spark ignition engine
title_full Effects of pre-turbocharger turbine water injection on the sustainable performance of spark ignition engine
title_fullStr Effects of pre-turbocharger turbine water injection on the sustainable performance of spark ignition engine
title_full_unstemmed Effects of pre-turbocharger turbine water injection on the sustainable performance of spark ignition engine
title_sort effects of pre-turbocharger turbine water injection on the sustainable performance of spark ignition engine
publisher MDPI
publishDate 2023
url http://eprints.utm.my/107357/1/MohdAzmanAbas2023_EffectsofPreTurbochargerTurbineWater.pdf
http://eprints.utm.my/107357/
http://dx.doi.org/10.3390/su15054559
_version_ 1811681168333996032
score 13.211869

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