Tailpipe emissions from gasoline direct injection (GDI) and port fuel injection (PFI) vehicles at both low and high ambient temperatures
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- 作者：Rencheng Zhua ; b ; Jingnan Hub ; c ; Xiaofeng Baoa ; b ; baoxf@craes.org.cn" class="auth_mail" title="E-mail the corresponding author ; Liqiang Heb ; Yitu Laid ; Lei Zub ; Yufei Lib ; Sheng Sud
- 关键词：Particulate matter ; Particle number (PN) ; Gasoline vehicle ; Gaseous emissions ; Fuel consumption
- 刊名：Environmental Pollution
- 出版年：2016
- 出版时间：September 2016
- 年：2016
- 卷：216
- 期：Complete
- 页码：223-234
- 全文大小：3210 K
文摘
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Tailpipe emissions from PFI and GDI vehicles were tested at both −7 °C and 30 °C.
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Low temperature led to higher fuel consumption and most emissions, except for NOx.
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The test PFI emitted more PM mass than the GDI with both gasoline and E10 at −7 °C.
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The solid PN emission factors of PFI were comparable to those of GDI at −7 °C.
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High peaks of solid PN emission rates were observed during some deceleration.