Effect of fuel injection pressure on a heavy-duty diesel engine nonvolatile particle emission

T. Lähde, T. Rönkkö, M. Happonen, Christer Söderström, A. Virtanen, Anu Solla, Matti Kytö, D. Rohde, J. Keskinen

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

The effects of the fuel injection pressure on a heavy-duty diesel engine exhaust particle emissions were studied. Nonvolatile particle size distributions and gaseous emissions were measured at steady-state engine conditions while the fuel injection pressure was changed. An increase in the injection pressure resulted in an increase in the nonvolatile nucleation mode (core) emission at medium and at high loads. At low loads, the core was not detected. Simultaneously, a decrease in soot mode number concentration and size and an increase in the soot mode distribution width were detected at all loads. Interestingly, the emission of the core was independent of the soot mode concentration at load conditions below 50%. Depending on engine load conditions, growth of the geometric mean diameter of the core mode was also detected with increasing injection pressure. The core mode emission and also the size of the mode increased with increasing NOx emission while the soot mode size and emission decreased simultaneously.
Original languageEnglish
Pages (from-to)2504-2509
Number of pages6
JournalEnvironmental Science & Technology
Volume45
Issue number6
DOIs
Publication statusPublished - 2011
MoE publication typeA1 Journal article-refereed

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Soot
Fuel injection
diesel engine
Diesel engines
soot
Engines
Vehicle Emissions
Gas emissions
Particle size analysis
engine
Particles (particulate matter)
Nucleation
effect
particle
nucleation
particle size

Cite this

Lähde, T. ; Rönkkö, T. ; Happonen, M. ; Söderström, Christer ; Virtanen, A. ; Solla, Anu ; Kytö, Matti ; Rohde, D. ; Keskinen, J. / Effect of fuel injection pressure on a heavy-duty diesel engine nonvolatile particle emission. In: Environmental Science & Technology. 2011 ; Vol. 45, No. 6. pp. 2504-2509.
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title = "Effect of fuel injection pressure on a heavy-duty diesel engine nonvolatile particle emission",
abstract = "The effects of the fuel injection pressure on a heavy-duty diesel engine exhaust particle emissions were studied. Nonvolatile particle size distributions and gaseous emissions were measured at steady-state engine conditions while the fuel injection pressure was changed. An increase in the injection pressure resulted in an increase in the nonvolatile nucleation mode (core) emission at medium and at high loads. At low loads, the core was not detected. Simultaneously, a decrease in soot mode number concentration and size and an increase in the soot mode distribution width were detected at all loads. Interestingly, the emission of the core was independent of the soot mode concentration at load conditions below 50{\%}. Depending on engine load conditions, growth of the geometric mean diameter of the core mode was also detected with increasing injection pressure. The core mode emission and also the size of the mode increased with increasing NOx emission while the soot mode size and emission decreased simultaneously.",
author = "T. L{\"a}hde and T. R{\"o}nkk{\"o} and M. Happonen and Christer S{\"o}derstr{\"o}m and A. Virtanen and Anu Solla and Matti Kyt{\"o} and D. Rohde and J. Keskinen",
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doi = "10.1021/es103431p",
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Lähde, T, Rönkkö, T, Happonen, M, Söderström, C, Virtanen, A, Solla, A, Kytö, M, Rohde, D & Keskinen, J 2011, 'Effect of fuel injection pressure on a heavy-duty diesel engine nonvolatile particle emission', Environmental Science & Technology, vol. 45, no. 6, pp. 2504-2509. https://doi.org/10.1021/es103431p

Effect of fuel injection pressure on a heavy-duty diesel engine nonvolatile particle emission. / Lähde, T.; Rönkkö, T.; Happonen, M.; Söderström, Christer; Virtanen, A.; Solla, Anu; Kytö, Matti; Rohde, D.; Keskinen, J.

In: Environmental Science & Technology, Vol. 45, No. 6, 2011, p. 2504-2509.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Effect of fuel injection pressure on a heavy-duty diesel engine nonvolatile particle emission

AU - Lähde, T.

AU - Rönkkö, T.

AU - Happonen, M.

AU - Söderström, Christer

AU - Virtanen, A.

AU - Solla, Anu

AU - Kytö, Matti

AU - Rohde, D.

AU - Keskinen, J.

PY - 2011

Y1 - 2011

N2 - The effects of the fuel injection pressure on a heavy-duty diesel engine exhaust particle emissions were studied. Nonvolatile particle size distributions and gaseous emissions were measured at steady-state engine conditions while the fuel injection pressure was changed. An increase in the injection pressure resulted in an increase in the nonvolatile nucleation mode (core) emission at medium and at high loads. At low loads, the core was not detected. Simultaneously, a decrease in soot mode number concentration and size and an increase in the soot mode distribution width were detected at all loads. Interestingly, the emission of the core was independent of the soot mode concentration at load conditions below 50%. Depending on engine load conditions, growth of the geometric mean diameter of the core mode was also detected with increasing injection pressure. The core mode emission and also the size of the mode increased with increasing NOx emission while the soot mode size and emission decreased simultaneously.

AB - The effects of the fuel injection pressure on a heavy-duty diesel engine exhaust particle emissions were studied. Nonvolatile particle size distributions and gaseous emissions were measured at steady-state engine conditions while the fuel injection pressure was changed. An increase in the injection pressure resulted in an increase in the nonvolatile nucleation mode (core) emission at medium and at high loads. At low loads, the core was not detected. Simultaneously, a decrease in soot mode number concentration and size and an increase in the soot mode distribution width were detected at all loads. Interestingly, the emission of the core was independent of the soot mode concentration at load conditions below 50%. Depending on engine load conditions, growth of the geometric mean diameter of the core mode was also detected with increasing injection pressure. The core mode emission and also the size of the mode increased with increasing NOx emission while the soot mode size and emission decreased simultaneously.

U2 - 10.1021/es103431p

DO - 10.1021/es103431p

M3 - Article

VL - 45

SP - 2504

EP - 2509

JO - Environmental Science & Technology

JF - Environmental Science & Technology

SN - 0013-936X

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