Browsing by Subject "Diesel engines"

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    Study on lubricant quality and its effect on engine component performance
    (2008) Beşergil B.; Sabih Özer M.; Eskici M.; Atik E.
    Purpose- This paper aims to determine the usage time of the test lubricant N0, prepared from base oils of Aliaga Plant, Izmir, in gasoline and diesel-engines, and the investigations of high-temperature oxidation, engine-protective properties, and property changes of the lubricant in performance time.Design/methodology/approach- Physical and chemical properties of the lubricating oil were initially established, and the oil was then subjected to Petter W-1 gasoline and Petter AV-1 diesel test engines. Dismantling of the engine parts was followed by the examination of pistons, piston rings and bearings, and analysis of the lubricant was also undertaken. The engine performance test results and the quality control of the lubricating oil assessments were evaluated according to the International Engine Lubricant Specifications.Findings- The lubricating oil, under sluggish experimental conditions, appears to meet a 40-hour test in gasoline engines and a 120-hour test in diesel engines with the specifications. This means that under usual working conditions the lubricants keep the engine protective properties in 7,000 km distance for gasoline run-vehicles, and in 5,000 km distance for diesel run-vehicles, after which change of the oil is required.Originality/value- The paper provides information of value to those involved with lubrication and engine performance. © 2008, Emerald Group Publishing Limited
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    Production of waste tyre oil and experimental investigation on combustion, engine performance and exhaust emissions
    (Elsevier B.V., 2019) Uyumaz A.; Aydoğan B.; Solmaz H.; Yılmaz E.; Yeşim Hopa D.; Aksoy Bahtli T.; Solmaz Ö.; Aksoy F.
    In this study, waste tyre was pyrolyzed at different conditions such as temperature, heating rate and inert purging gas (N2) flow rate. Pyrolysis parameters were optimized. Optimum parameters were determined. The main objective of this study was to investigate combustion, performance and emissions of diesel and waste tyre oil fuel blend. Experimental investigation was performed in a single cylinder, direct injection, air cooled diesel engine at maximum engine torque speed of 2200 rpm and four different engine load including 3.75, 7.5, 11.25 and 15 Nm. The effects of waste tyre oil on combustion characteristics such as cylinder pressure, heat release rate, ignition delay (ID), combustion duration, engine performance were investigated. In-cylinder pressure and heat release rate increased with waste tyre oil fuel blend (W10) with the increase of engine load. In addition, ID was shortened with the increase of engine load for test fuels but it increased with the addition of waste tyre oil. Lower imep values were obtained because of the lower calorific value of waste tyre oil fuels. Maximum thermal efficiencies were determined as 28.27% and %25.12 with diesel and W10 respectively at 11.25 Nm engine load. When test results were examined, it was seen that waste tyre oil highly affected combustion characteristics, performance and emissions. © 2018 Energy Institute
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    Investigation of engine performance and emission characteristics of organic-based manganese addition into waste fusel oil-diesel mixture; [Atık fuzel yağı-motorin karışımı içerisine organik esaslı mangan ilavesinin motor performansı ve emisyon karakteristiklerinin araştırılması]
    (Gazi Universitesi, 2021) Üstün S.
    In this study, 8ppm, 12ppm and 16ppm organic resin-based manganese (OrbMn) was added into the mixture (F10DF90) consisting of 10% waste fusel oil and 90% diesel fuel engine (DF) by volume. Input parameters (adding 8ppm, 12ppm and 16ppm OrbMn into the volumetric blended 10% fusel oil and 90% DF fuel diesel mixture, motor speed (d/dk), brake torque (Nm)), output parameters (Torque, power, specific fuel consumption, The effects of CO, HC, NOx and CO2) as exhaust temperature and exhaust emission data have been extensively studied. Research results data have been compared with DF data. It has been observed that 12ppm manganese added test fuel gave positive results compared to F10DF90 test fuel, 8ppm and 16ppm manganese added test fuels. After the addition of 12 ppm manganese, it was found that the torque and power values of the engine are close to those of diesel fuel and decrease in the exhaust gas temperature. CO2 and NOx emissions decreased by 13.17% and 17.02% on average, respectively. © 2021 Gazi Universitesi Muhendislik-Mimarlik. All rights reserved.