Effect of low load combustion and emissions on fuel dilution in lubricating oil and deposit formation of DI diesel engines fueled by straight rapeseed oil

Kidoguchi, Yoshiyuki; Nada, Yuzuru; Sangawa, Syota; Kitazaki, Masato; Matsunaga, Daichi

doi:10.1016/j.fuel.2018.01.031

Cited by 13 publications

(2 citation statements)

References 23 publications

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“…Accumulating deposits in the engine is a complicated phenomenon, and it is difficult to observe its development and formation mechanism in a real engine [19]. Therefore, a simplified method by testing the deposits formed on the combustion chamber model is proposed in this study.…”

Section: Introductionmentioning

confidence: 99%

Research and Design an Experimental Model for the Determination of Deposits Formation Mechanism in the Combustion Chamber

Pham

2019

Int. J. Adv. Sci. Eng. Inf. Technol.

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One of the important researches on fuel use in diesel engines is the basic study of deposits formation in engine combustion chambers. The process of creating deposits in the engine combustion chamber is a complex phenomenon causing many different problems. Therefore, it is necessary to study the mechanism of deposits formation and development in engine combustion chamber when using traditional diesel or biodiesel. The study of combustion chamber deposits in internal engines was conducted to understand the effects of deposits on the engine and how they were formed and developed. Most of the current studies on deposits are carried out using statistical results from vehicle's engines. Testing on real engines requires a long time and long distance travel, which makes the cost of both tests very high, causes damage to the engine during deposits testing. Studying and finding a simpler, more cost-effective experimental model that meets the requirements of the deposits formation testing and assessing the factors that make up them are essential. An experimental model design to determine the formation mechanism of deposits in the combustion chamber is the key point of the paper. This study clarifies the deposits formation of fuel in the engine by using a method called a heated surfaces deposits formation testing (HSDFT) and simulate the accumulation and development of deposits in combustion chamber. This model will help researchers to initially build the database effectively to determine the deposits formation mechanism in the combustion chamber of diesel engines when using different fuel.

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Section: Introductionmentioning

confidence: 99%

Research and Design an Experimental Model for the Determination of Deposits Formation Mechanism in the Combustion Chamber

Pham

2019

Int. J. Adv. Sci. Eng. Inf. Technol.

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“…Анализ результатов различных исследований свидетельствует, что практически все технические проблемы, возникающие на разных стадиях жизненного цикла биологических видов моторного топлива, обусловлены некоторыми отличиями их физикохимических и эксплуатационных свойств от свойств моторного топлива на основе нефти [1,2,3]. При этом среди главных из них можно выделить повышенную плотность и кинематическую вязкость, косвенно характеризующие испаряемость топлива -эксплуатационное свойство, влияющее на такие параметры процессов топливоподачи и смесеобразования, как текущая и средняя скорости впрыска; общее количество впрыскиваемого топлива; распределение, глубина и характеристики факела впрыскиваемого топлива; интенсивность смесеобразования и температура самовоспламенения [4,5,6]. Для изменения химмотологических качеств рапсового масла проводили эксперименты с выделением фенольных смол с использованием микроволн [7], предпринимали попытки синтеза биодизельного топлива или алкилового эфира жирных кислот путем переэтерификации метилформиатом [8], исследовали превращения рапсового масла в метиловые эфиры жирных кислот и триацетин путем обработки сверхкритического метилацетата с использованием его в качестве реакционного растворителя при производстве биодизельного топлива [9].…”

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Improving the Quality of Rapeed Oil for Use in a Diesel Engine

Evgeniy¹,

Uyutov²

2021

Vestnik of Kazan State Agrarian University

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This article presents experimental studies on changing such chemical properties of vegetable (rapeseed) oil, such as viscosity, for its use as a fuel in diesel engines. With the help of hydrothermal technology, samples of vegetable oil were obtained and laboratory studies were carried out on a viscometer, which showed a decrease in viscosity up to 16%. Oil samples were obtained at different pressures up to 90 atm. and temperatures up to 130 C. All samples were passed through a liquid activator installed at the outlet of the reactor, which, due to spargers located in the path of the flow, provided the appearance of a gaseous and liquid mixture with an increased ability to mix and conduct chemical reactions. The reactor was a metal flask with a wall thickness of 10 mm, a volume of 6 liters, with installed temperature and pressure sensors, and a heating element for heating oil. The pressure was provided by a gear pump driven by a 3 kW electric motor. For the safety of testing, an automatic pressure and temperature regulator in the reactor, installed in the control panel, was developed. In order to compare with pure cold-pressed rapeseed oil, comparative tests were carried out on bench equipment of the laboratory, which showed the effectiveness of this technology and obtaining the characteristics of engine operation on rapeseed oil as close as possible to diesel fuel. During the research, quantitative indicators of the ingress of rapeseed oil into the engine crankcase were also determined. When using cold-pressed rapeseed oil, this figure after eight-hour tests at idle at different speeds was 3.21 liters. After the processing of rapeseed oil in the reactor and repeated tests, the oil in the engine crankcase was measured, where it was 1.92 liters, which was 60% of the previous experience

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Ways to Reduce Negative Impacts from the Use of Rapeseed Oil as a Fuel for Diesel Engines

Evgeniy

Uyutov

Roman

et al. 2022

Lecture Notes in Networks and Systems

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Effect of low load combustion and emissions on fuel dilution in lubricating oil and deposit formation of DI diesel engines fueled by straight rapeseed oil

Cited by 13 publications

References 23 publications

Research and Design an Experimental Model for the Determination of Deposits Formation Mechanism in the Combustion Chamber

Research and Design an Experimental Model for the Determination of Deposits Formation Mechanism in the Combustion Chamber

Improving the Quality of Rapeed Oil for Use in a Diesel Engine

Ways to Reduce Negative Impacts from the Use of Rapeseed Oil as a Fuel for Diesel Engines

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