Combustion characteristics and NOx emissions of a waste cooking oil biodiesel blend in a marine auxiliary diesel engine

Geng, Peng; Mao, Hongjun; Zhang, Yanjie; Wei, Lijiang; You, Kun; Ju, Ji; Chen, Tingkai

doi:10.1016/j.applthermaleng.2016.12.113

Cited by 115 publications

(46 citation statements)

References 30 publications

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“…The results published in this article are consistent with a number of other scientific studies [Erokhov, 2013;Ruan et al, 2012;Geng et al, 2017].…”

Section: Discussion / Raspravasupporting

confidence: 82%

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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“…The results published in this article are consistent with a number of other scientific studies [Erokhov, 2013;Ruan et al, 2012;Geng et al, 2017].…”

Section: Discussion / Raspravasupporting

confidence: 82%

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

Sagin¹,

Kuropyatnyk²

2018

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“…Geng et al. () investigated the influence of high biodiesel‐to‐diesel ratios on the combustion characteristics and NOx emissions under 25%, 50%, and 75% engine load at 1050 revolutions per minute (rpm) and 1500 rpm conditions using ultralow‐sulfur diesel blends with 70% by volume biodiesel, 90% by volume biodiesel, and neat WCO biodiesel. It was observed that the cylinder pressure decreased slightly with an increase in the biodiesel content in the test fuels; however, it resulted in improved ignition, reduced ignition delay, and longer combustion duration.…”

Section: Performance Of Biodiesel As a Fuelmentioning

confidence: 99%

Production, engine performance, combustion, emission characteristics and economic feasibility of biodiesel from waste cooking oil: A review

Rekhate

Prajapati

2019

Environmental Quality Mgmt

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The depletion of fossil fuel reserves and increasing demands for diesel are considered to be important triggers for many of the initiatives that have been taken to search for possible sources for the production of biodiesel from materials available within the country. It is possible to produce biodiesel from waste/used cooking oils (WCO) that is comparable in quality to that of fresh vegetable oil. Not only does reuse of WCO, which can otherwise harm human health, reduce the burden on the government of treating oily wastewater, disposing of the waste, and maintaining public sewers, it also significantly lowers the production cost of biodiesel. In the process of frying, oil undergoes many reactions, leading to the formation of a number of undesirable compounds, such as polymers, free fatty acids, and many other chemicals. This poses challenges in the transesterification of WCO. This article covers different techniques in the production of biodiesel from WCO.It also compares combustion, emissions, and engine performance characteristics of biodiesel from WCO as well as factors affecting biodiesel production from WCO and its economic feasibility. K E Y W O R D S

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“…Numerous experimental and numerical studies have been conducted on diesel engines. While time-consuming design approaches and high equipment costs limit the practicality of experimental research, a computational tool represents a more efficient and less expensive approach for predicting diesel engine performance and emissions [1,2].…”

Section: Introductionmentioning

confidence: 99%

Multi-zone model for diesel engine simulation based on chemical kinetics mechanism

Neshat

Honnery

Saray

2017

Applied Thermal Engineering

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Combustion characteristics and NOx emissions of a waste cooking oil biodiesel blend in a marine auxiliary diesel engine

Cited by 115 publications

References 30 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

Production, engine performance, combustion, emission characteristics and economic feasibility of biodiesel from waste cooking oil: A review

Multi-zone model for diesel engine simulation based on chemical kinetics mechanism

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