2014
DOI: 10.1051/matecconf/20141803004
|View full text |Cite
|
Sign up to set email alerts
|

Condensation-Fouling Interaction in Low-Temperature EGR-Coolers

Abstract: EGR cooling is a worthwhile technology capable of reducing NOx-emissions and increasing the efficiency of CI engines. Challenges arise when low-temperature cooling is applied with high fuel sulfur contents. The resulting sulfuric acid condenses in conjunction with the water of the exhaust gas and gives rise to corrosion of coolers and engine components. Additionally, fouling of the EGR cooler is exacerbated by the condensation of acidic components compromising EGR performance. In order to gain a better underst… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1

Citation Types

0
3
0

Year Published

2017
2017
2024
2024

Publication Types

Select...
2
2

Relationship

0
4

Authors

Journals

citations
Cited by 4 publications
(3 citation statements)
references
References 24 publications
(28 reference statements)
0
3
0
Order By: Relevance
“…The analogy has been frequently used to model condensation of sulfuric acid onto various shaped surfaces. 4,[28][29][30] The subscript "i" refers to either H 2 SO 4 or H 2 O. For both species, the difference between its partial pressure within the bulk cylinder gas (x i,B Á p) and its partial pressure in the gas-liquid interphase at the liner surface (x i,S Á p) acts as a "driving force" for the condensation.…”
Section: Non-consecutive Testsmentioning
confidence: 99%
See 1 more Smart Citation
“…The analogy has been frequently used to model condensation of sulfuric acid onto various shaped surfaces. 4,[28][29][30] The subscript "i" refers to either H 2 SO 4 or H 2 O. For both species, the difference between its partial pressure within the bulk cylinder gas (x i,B Á p) and its partial pressure in the gas-liquid interphase at the liner surface (x i,S Á p) acts as a "driving force" for the condensation.…”
Section: Non-consecutive Testsmentioning
confidence: 99%
“…The continuous improvements of the thermal efficiency and emission reductions of large two-stroke marine diesel engines have led to higher operating pressures, especially under low-and part load operation (slow steaming). It is generally accepted, that liner corrosion is coupled to the fuel bound sulfur, [1][2][3][4][5] and the higher cylinder gas pressures in combination with the use of heavy fuel oil (HFO) with up to $5% (by mass) sulfur can negatively affect the liner wear rates.…”
Section: Introductionmentioning
confidence: 99%
“…Teetz [18] formulated a corrosive threat factor (without modeling condensation) based on the partial pressures of H2O and H2SO4 in the cylinder gas and argued that the thread is high in the top of the liner. For gas coolers with various geometries sulfuric acid condensation has been modeled using the Chilton-Colburn-analogy [19][20][21]. The analogy couples convective heat and mass transfer.…”
Section: Introductionmentioning
confidence: 99%