A review of particulate number (PN) emissions from gasoline direct injection (GDI) engines and their control techniques
Particulate Matter (PM) emissions from gasoline direct injection (GDI) engines, particularly Particle Number (PN) emissions, have been studied intensively in both academia and industry because of the adverse effects of ultrafine PM emissions on human health and other environmental concerns. GDI engi...
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| Fformat: | Journal article |
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MDPI
2018
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| _version_ | 1826298749291331584 |
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| author | Raza, M Chen, L Leach, F Ding, S |
| author_facet | Raza, M Chen, L Leach, F Ding, S |
| author_sort | Raza, M |
| collection | OXFORD |
| description | Particulate Matter (PM) emissions from gasoline direct injection (GDI) engines, particularly Particle Number (PN) emissions, have been studied intensively in both academia and industry because of the adverse effects of ultrafine PM emissions on human health and other environmental concerns. GDI engines are known to emit a higher number of PN emissions (on an engine-out basis) than Port Fuel Injection (PFI) engines, due to the reduced mixture homogeneity in GDI engines. Euro 6 emission standards have been introduced in Europe (and similarly in China) to limit PN emissions from GDI engines. This article summarises the current state of research in GDI PN emissions (engine-out) including a discussion of PN formation, and the characteristics of PN emissions from GDI engines. The effect of key GDI engine operating parameters is analysed, including air-fuel ratio, ignition and injection timing, injection pressure, and EGR; in addition the effect of fuel composition on particulate emissions is explored, including the effect of oxygenate components such as ethanol. |
| first_indexed | 2024-03-07T04:51:34Z |
| format | Journal article |
| id | oxford-uuid:d52477e3-6f78-49f9-96e9-a7c7ec91657a |
| institution | University of Oxford |
| last_indexed | 2024-03-07T04:51:34Z |
| publishDate | 2018 |
| publisher | MDPI |
| record_format | dspace |
| spelling | oxford-uuid:d52477e3-6f78-49f9-96e9-a7c7ec91657a2022-03-27T08:23:50ZA review of particulate number (PN) emissions from gasoline direct injection (GDI) engines and their control techniquesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:d52477e3-6f78-49f9-96e9-a7c7ec91657aSymplectic Elements at OxfordMDPI2018Raza, MChen, LLeach, FDing, SParticulate Matter (PM) emissions from gasoline direct injection (GDI) engines, particularly Particle Number (PN) emissions, have been studied intensively in both academia and industry because of the adverse effects of ultrafine PM emissions on human health and other environmental concerns. GDI engines are known to emit a higher number of PN emissions (on an engine-out basis) than Port Fuel Injection (PFI) engines, due to the reduced mixture homogeneity in GDI engines. Euro 6 emission standards have been introduced in Europe (and similarly in China) to limit PN emissions from GDI engines. This article summarises the current state of research in GDI PN emissions (engine-out) including a discussion of PN formation, and the characteristics of PN emissions from GDI engines. The effect of key GDI engine operating parameters is analysed, including air-fuel ratio, ignition and injection timing, injection pressure, and EGR; in addition the effect of fuel composition on particulate emissions is explored, including the effect of oxygenate components such as ethanol. |
| spellingShingle | Raza, M Chen, L Leach, F Ding, S A review of particulate number (PN) emissions from gasoline direct injection (GDI) engines and their control techniques |
| title | A review of particulate number (PN) emissions from gasoline direct injection (GDI) engines and their control techniques |
| title_full | A review of particulate number (PN) emissions from gasoline direct injection (GDI) engines and their control techniques |
| title_fullStr | A review of particulate number (PN) emissions from gasoline direct injection (GDI) engines and their control techniques |
| title_full_unstemmed | A review of particulate number (PN) emissions from gasoline direct injection (GDI) engines and their control techniques |
| title_short | A review of particulate number (PN) emissions from gasoline direct injection (GDI) engines and their control techniques |
| title_sort | review of particulate number pn emissions from gasoline direct injection gdi engines and their control techniques |
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