The effect of Mg-based additive on aerosol characteristics in medium-speed diesel engines operating with residual fuel oils

Jussi Lyyränen, Jorma Jokiniemi (Corresponding Author), Esko Kauppinen

Research output: Contribution to journalArticleScientificpeer-review

26 Citations (Scopus)

Abstract

Aerosol measurements were carried out to determine particle formation and characteristics produced in a 4-stroke, turbo-charged diesel engine operating with high ash-content heavy fuel oil with and without a Mg-based additive.
The mass size distributions are bimodal (modes at 0.1 and , aerodynamic size) without additive and have three modes (additional mode at ) with the additive. It was found that the mode was generated by magnesium together with some vanadium, nickel and sulphur.
The primary particles are formed by nucleation of the volatilised fuel oil ash species that further grow by condensation and agglomeration. The mode particles are mainly re-entrained from deposits and fuel residue particles of different sizes. Primary particle size is about 40– as observed in the SEM and TEM micrographs.
It appears that the fine particles ( mode) are more spheroidal and catenulate with the additive than without.
Original languageEnglish
Pages (from-to)967-981
JournalJournal of Aerosol Science
Volume33
Issue number7
DOIs
Publication statusPublished - 2002
MoE publication typeA1 Journal article-refereed

Fingerprint

Ashes
Residual fuels
diesel engine
Aerosols
Fuel Oils
Diesel engines
Fuel oils
aerosol
Vanadium
Nickel
Sulfur
ash
Magnesium
Particles (particulate matter)
Condensation
Aerodynamics
Nucleation
Deposits
Agglomeration
Particle size

Keywords

  • diesel engines
  • corrosion
  • aerosols
  • hot corrosion

Cite this

Lyyränen, Jussi ; Jokiniemi, Jorma ; Kauppinen, Esko. / The effect of Mg-based additive on aerosol characteristics in medium-speed diesel engines operating with residual fuel oils. In: Journal of Aerosol Science. 2002 ; Vol. 33, No. 7. pp. 967-981.
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The effect of Mg-based additive on aerosol characteristics in medium-speed diesel engines operating with residual fuel oils. / Lyyränen, Jussi; Jokiniemi, Jorma (Corresponding Author); Kauppinen, Esko.

In: Journal of Aerosol Science, Vol. 33, No. 7, 2002, p. 967-981.

Research output: Contribution to journalArticleScientificpeer-review

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T1 - The effect of Mg-based additive on aerosol characteristics in medium-speed diesel engines operating with residual fuel oils

AU - Lyyränen, Jussi

AU - Jokiniemi, Jorma

AU - Kauppinen, Esko

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N2 - Aerosol measurements were carried out to determine particle formation and characteristics produced in a 4-stroke, turbo-charged diesel engine operating with high ash-content heavy fuel oil with and without a Mg-based additive. The mass size distributions are bimodal (modes at 0.1 and , aerodynamic size) without additive and have three modes (additional mode at ) with the additive. It was found that the mode was generated by magnesium together with some vanadium, nickel and sulphur. The primary particles are formed by nucleation of the volatilised fuel oil ash species that further grow by condensation and agglomeration. The mode particles are mainly re-entrained from deposits and fuel residue particles of different sizes. Primary particle size is about 40– as observed in the SEM and TEM micrographs. It appears that the fine particles ( mode) are more spheroidal and catenulate with the additive than without.

AB - Aerosol measurements were carried out to determine particle formation and characteristics produced in a 4-stroke, turbo-charged diesel engine operating with high ash-content heavy fuel oil with and without a Mg-based additive. The mass size distributions are bimodal (modes at 0.1 and , aerodynamic size) without additive and have three modes (additional mode at ) with the additive. It was found that the mode was generated by magnesium together with some vanadium, nickel and sulphur. The primary particles are formed by nucleation of the volatilised fuel oil ash species that further grow by condensation and agglomeration. The mode particles are mainly re-entrained from deposits and fuel residue particles of different sizes. Primary particle size is about 40– as observed in the SEM and TEM micrographs. It appears that the fine particles ( mode) are more spheroidal and catenulate with the additive than without.

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KW - corrosion

KW - aerosols

KW - hot corrosion

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