Effect of exhaust gas recirculation (EGR) contamination of diesel engine oil on wear

Aldajah, Saud; Ajayi, O. O.; Fenske, G.R.; Goldblatt, I.L.

doi:10.1016/j.wear.2006.12.055

Cited by 77 publications

(58 citation statements)

References 10 publications

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“…Both main marine engines that transmit power directly to the propeller and powerful auxiliary engines that provide power to the marine power plant (the latter is widely used for cruise ships with large passenger capacity that often sails to coastal waters and areas of environmental control) are equipped with the above-described systems [Ajayi et al, 2007]. Mathematical modelling of gas exchange and combustion processes using the EGR system involves the need to take into account the complex phenomena of heat and mass transfer [Kotman et al, 2010].…”

Section: Materials and Methods / Materijali I Metodementioning

confidence: 99%

The Use of Exhaust Gas Recirculation for Ensuring the Environmental Performance of Marine Diesel Engines

Sagin¹,

Kuropyatnyk²

2018

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SummaryThe article deals with the operational features of internal combustion engines of marine vessels during their operation in special environmental areas -Nitrogen Oxide Emission Control Areas. According to the requirements of Annex VI MARPOL, during the operation of marine diesel engines in these areas the content of nitrogen oxides in the exhaust gases should be less than 3.4 g/(kW×h). The article touches upon the possible technical measures to ensure the maintenance of the required level of nitrogen oxide emissions in the exhaust gases of marine diesel engines. The authors propose to use an exhaust gas recirculation system, with a certain amount of gases supplied back to the cylinder after preliminary cooling and mixing with air, which reduces the maximum combustion temperature to values that prevent the formation of nitrogen oxides. The experiment proved that the recirculation of exhaust gases in the 4.7 ... 18.8% range helps to reduce the concentration of nitrogen oxides in exhaust gases by 19.5 ... 48.8%. At the same time, it is necessary to ensure values that meet the requirements of international organizations aimed at protecting the air from pollution and allowing the use of marine vessels in areas of increased environmental control. SažetakČlanak se bavi operativnim značajkama brodskih motora s unutarnjim izgaranjem u posebnim područjima zaštite okoliša -područja kontrole emisija dušikovih oksida. Prema odredbama Priloga VI. MARPOL konvencije, tijekom rada brodskih dizelskih motora, u posebnim područjima sadržaj dušikovih oksida u ispušnim plinovima ne smije prelaziti 3,4 g/(kW×h). Članak se bavi potencijalnim tehničkim mjerama za održavanje određene razine emisija dušikovih oksida u ispušnim plinovima brodskih dizelskih motora. Autori predlažu uporabu sustava recirkulacije ispušnih plinova s određenom količinom plinova koji se vraćaju u cilindar nakon prethodnog hlađenja i miješanja sa zrakom, što smanjuje najvišu temperaturu izgaranja do vrijednosti koje sprječavaju stvaranje dušikovih oksida. Pokus je potvrdio da recirkulacija ispušnih plinova u rasponu od 4,7 do 18,8 % pomaže pri smanjenju koncentracije dušikovih oksida u ispušnim plinovima za 19,5 do 48,8 %. istodobno je potrebno osigurati vrijednosti koje su u skladu s propisima međunarodnih organizacija s ciljem zaštite zraka od onečišćenja i uporabe brodskih motora u područjima povećane kontrole okoliša. KEY WORDSlow-speed marine diesel environmental performance of a diesel engine concentration of nitrogen oxides in exhaust gases exhaust gas recirculation effective power specific fuel oil consumption KLJUČNE RIJEČI sporohodni brodski dizelski motori skrb za okoliš dizelskih motora koncentracija dušikovih oksida u ispušnim plinovima recirkulacija ispušnih plinova efektivna snaga specifična potrošnja goriva

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Section: Materials and Methods / Materijali I Metodementioning

confidence: 99%

The Use of Exhaust Gas Recirculation for Ensuring the Environmental Performance of Marine Diesel Engines

Sagin¹,

Kuropyatnyk²

2018

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“…In an effort to minimize engine-out emissions, exhaust gas recirculation (EGR) is used to reduce particulate matter as well as NO x gases in the oil within the crankcase [1]. With accumulated mileage or hours of operation the soot loading in the crankcase oil increases and is responsible for increased wear by virtue of increased viscosity of the oil [2,3] in addition to soot acting as a three body wear inducer.…”

Section: Overviewmentioning

confidence: 99%

Structure and Chemistry of Soot and Its Role in Wear of Diesel Engines

et al. 2016

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Environmental regulations to reduce the emissions using exhaust gas recirculation (EGR) have resulted in higher soot level in the crankcase oil of diesel engines. Longer drain intervals have resulted in engines running 80000 kilometers or more before an oil change. This results in longer residence times of EGR soot in the crankcase and other parts of the engine drivetrain. The primary structure of soot from in-cylinder combustion is turbostratic carbon, as soot spends more time in the combustion chamber and in the crankcase it incorporates some of the chemistry of the aged oil as well as debris from the wear processes making the soot more abrasive. This study focuses on the use of multiple tools to examine the nature of soot from different engines of the same type but different age all using the same engine oil and similar duty cycles. This soot is compared with soot derived from a typical EGR diesel engine driven for a period of 80000 kilometers.

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“…Wear of the materials also increase due to chemical reactions taking place on the surface (adsorption, corrosion) or due to abrasion of material or rupture of anti-wear film by soot. The application of EGR also adversely affects the lubricating oil quality and engine durability [28][29][30][31][32][33]. Gautam et al experimentally proved that soot interacts with oil addit ives reducing its anti-wear properties possibly by abrasive wear mechanis m. Increased wear due to EGR is because of presence of soot in lubricating oil [29].…”

Section: Exhaust Gas Recirculationmentioning

confidence: 99%

Effect of Exhaust Gas Recirculation (EGR) on Performance and Emission of a Compression Ignition Engine with Staged Combustion (Insertion of Unburned Hydrocarbon)

Hussain¹,

Palaniradja²,

Alagumurthi³

et al. 2012

IJEE

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The usage of EGR adopted diesel engine increasing day by day world wide to reduce the NOx emissions. The EGR adopted engines can reduce NOx Considerably but it adversely improves the emissions of UHC nearly 40 to 50 %. We can avoid this effect by Reutilizat ion of UHC. In this paper the experimental investigation has been carried out on EGR adopted direct injection co mpression ignition engine with insertion of unburned hydro carbon rich exhaust. The results were presented and compared with all EGR levels. The result were evidenced that can reduce 20 to 25 % of UHC by this method.

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Effect of exhaust gas recirculation (EGR) contamination of diesel engine oil on wear

Cited by 77 publications

References 10 publications

The Use of Exhaust Gas Recirculation for Ensuring the Environmental Performance of Marine Diesel Engines

The Use of Exhaust Gas Recirculation for Ensuring the Environmental Performance of Marine Diesel Engines

Structure and Chemistry of Soot and Its Role in Wear of Diesel Engines

Effect of Exhaust Gas Recirculation (EGR) on Performance and Emission of a Compression Ignition Engine with Staged Combustion (Insertion of Unburned Hydrocarbon)

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