Browsing by Subject "Exhaust gas temperatures"

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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.
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    Determination of optimum manganese amount by response surface methodology with alcohol–gasoline fuel blend in an SI engine
    (Springer Science and Business Media Deutschland GmbH, 2022) Ustun S.
    In this study, the response surface methodology (RSM) was used to optimize the addition of different amounts of manganese to a spark-ignition (SI) engine operating with alcohol–gasoline fuel blend. The content of the fuel blend used was set to 7.5% fusel oil, 7.5% ethanol and 85% gasoline. By adding 4, 8, 12 and 16 ppm manganese to this fuel mixture, tests were carried out at different engine speeds (2500, 2750, 3000 and 3250 rpm). An analysis of variance (ANOVA)-supported RSM model was created to determine the optimum engine speed/manganese amount and responses according to optimum engine conditions. According to the optimization results obtained from RSM, the optimum manganese amount and engine speed were found as 3 ppm and 2650 rpm, respectively. In addition, the responses according to optimum engine conditions are 26.237 Nm, 8.262 kW, 385.749 g/kWh, 666.924 °C, 7.079%, 34.3115 ppm, 7.921% and 140.428 ppm for torque, power, brake specific fuel consumption (BSFC), exhaust gas temperature (EGT), carbon monoxide (CO), hydrocarbon (HC), carbon dioxide (CO2) and nitrogen oxide(NOx), respectively. Moreover, according to the validation tests for the reliability of the optimization results, the error rates were below 10%. Based on these results, it can be said that RSM can successfully determine the amount of manganese to be added to the SI engine operating with dual alcohol/gasoline blends. © 2021, Islamic Azad University (IAU).