Yazar "Ogut, H." seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim Yok
    Öğe
    Effects of using ethanol-biodiesel-diesel fuel in single cylinder diesel engine to engine performance and emissions
    (PERGAMON-ELSEVIER SCIENCE LTD, 2017) Aydin, F.; Ogut, H.
    In this study, biodiesel was produced from safflower seeds by converting the raw oil obtained through dampening them via the rolling process, roasting at 90 degrees C and pressing into Safflower Oil Methyl Esther (Safflower Biodiesel) using the trans-esterification method. Experimental fuels were obtained in the forms of D-100, B2.5M2.5D95, B5M5D90, B5M2.5D92.5 and B2.5M5D92.5 by mixing the biodiesel fuel obtained from safflower with diesel fuel, adding bio-ethanol at the rates of 2.5% and 5%, and volumetrically in inverse ratio. Tests were conducted to determine the fuel properties of the mixed fuels obtained and the diesel fuel, their kinematic viscosity, density, water content, pH level, caloric value, flash point, clouding, pour and freezing points, copper bar corrosion test, iodine number, CFPP (Cold Filter Plugging Point) test and cetane number. Moreover, the mixtures obtained and the diesel fuel were tried and examined in a water-cooled, four-stroke, single cylinder diesel engine that had a direct injection fuel system. As a result of the experiments, performance characteristics of the test engine were obtained. Exhaust emission values (CO, CO2, HC, O-2, SO2, NOR) were obtained from the exhaust stack of the test engine using the probe of the gas analysis device. (C) 2016 Elsevier Ltd. All rights reserved.
  • Küçük Resim Yok
    Öğe
    Investigation of biodiesel production, quality and performance in Turkey
    (TAYLOR & FRANCIS INC, 2007) Oguz, H.; Ogut, H.; Eryilmaz, T.
    Nowadays about 90% of the energy consumed in the world is provided from fossil sources. As fossil fuel reserve is limited, and the emission values are not suitable, new precautions and new surveys for future are compelled. Especially in reaching of global heating to the risky levels forces the humankind to use sustainable and renewable energy. Biodiesel is are newable and environmental-friendly fuel for dieselengine. This study aimed to determine the physical properties (namely, kinematic viscosity, density, flash point, cloud point, pour point, freezing point, copper strip corrosion) of biodiesel fuels derived from soybean oil, rape seed oil and palm oil. In addition, the engine performances with these biodiesel fuels were compared with the engine performance with normal diesel fuel. A four-stroke, 3-cylinder, 30 kW TUMOSAN (Turkish Motor Industry and Trade) diesel engine was used for experimentation. The kinematic viscosity, density, flash point, cloud point, pour point, freezing point, copper strip corrosion values of all biodiesel fuels stayed within the limit values described by DIN-TSE EN 14214. They can readily be used without any need for modifications of the engine. Eventhough specific fuel consumption for biodiesel fuels tended to be higher than that for normal diesel fuel, the exhaust smokiness values of biodiesel fuels were considerably lower than that for normal diesel fuel. On the other hand, there were no significant differences observed for torque, power and exhaust smokiness. Consequently, biodiesel can be a good alternative to fossil diesel fuel in oil-importer countries like Turkey.