Applicability of various EGR strategies in a multi-cylinder diesel engine - Effect of combining HPL-EGR and LPL-EGR systems

Atsushi Kaneko; Yutaka Murata; Jin Kusaka; Yasuhiro Daisho; Daisuke Kawano; Hisakazu Suzuki; Hajime Ishii

Applicability of various EGR strategies in a multi-cylinder diesel engine - Effect of combining HPL-EGR and LPL-EGR systems

Atsushi Kaneko^*, Yutaka Murata, Jin Kusaka, Yasuhiro Daisho, Daisuke Kawano, Hisakazu Suzuki, Hajime Ishii

^*Corresponding author for this work

Graduate School of Environment and Energy Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The effect of combining high pressure loop (HPL-) and low pressure loop (LPL-) EGR systems on engine performance and emission characteristics were investigated using a multi-cylinder diesel engine under steady-state conditions. At low load, increasing HPL-EGR rate causes higher soot emission whereas increasing LPL-EGR rate causes higher fuel penalty. To solve this problem, combining HPL- and LPL-EGR systems at low load can reduce exhaust emissions without fuel penalty. At high load, in contrast, since pumping loss is low effect on fuel consumption, increasing LPL-EGR rate with higher boost pressure can reduce NOx and soot emissions simultaneously.

Original language	English
Pages (from-to)	41-48
Number of pages	8
Journal	Review of Automotive Engineering
Volume	31
Issue number	2
Publication status	Published - 2010 Dec 1

ASJC Scopus subject areas

Automotive Engineering

Cite this

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abstract = "The effect of combining high pressure loop (HPL-) and low pressure loop (LPL-) EGR systems on engine performance and emission characteristics were investigated using a multi-cylinder diesel engine under steady-state conditions. At low load, increasing HPL-EGR rate causes higher soot emission whereas increasing LPL-EGR rate causes higher fuel penalty. To solve this problem, combining HPL- and LPL-EGR systems at low load can reduce exhaust emissions without fuel penalty. At high load, in contrast, since pumping loss is low effect on fuel consumption, increasing LPL-EGR rate with higher boost pressure can reduce NOx and soot emissions simultaneously.",

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AU - Kaneko, Atsushi

AU - Murata, Yutaka

AU - Kusaka, Jin

AU - Daisho, Yasuhiro

AU - Kawano, Daisuke

AU - Suzuki, Hisakazu

AU - Ishii, Hajime

PY - 2010/12/1

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N2 - The effect of combining high pressure loop (HPL-) and low pressure loop (LPL-) EGR systems on engine performance and emission characteristics were investigated using a multi-cylinder diesel engine under steady-state conditions. At low load, increasing HPL-EGR rate causes higher soot emission whereas increasing LPL-EGR rate causes higher fuel penalty. To solve this problem, combining HPL- and LPL-EGR systems at low load can reduce exhaust emissions without fuel penalty. At high load, in contrast, since pumping loss is low effect on fuel consumption, increasing LPL-EGR rate with higher boost pressure can reduce NOx and soot emissions simultaneously.

AB - The effect of combining high pressure loop (HPL-) and low pressure loop (LPL-) EGR systems on engine performance and emission characteristics were investigated using a multi-cylinder diesel engine under steady-state conditions. At low load, increasing HPL-EGR rate causes higher soot emission whereas increasing LPL-EGR rate causes higher fuel penalty. To solve this problem, combining HPL- and LPL-EGR systems at low load can reduce exhaust emissions without fuel penalty. At high load, in contrast, since pumping loss is low effect on fuel consumption, increasing LPL-EGR rate with higher boost pressure can reduce NOx and soot emissions simultaneously.

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Applicability of various EGR strategies in a multi-cylinder diesel engine - Effect of combining HPL-EGR and LPL-EGR systems

Abstract

ASJC Scopus subject areas

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