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search.filters.applied.f.publicationcategory: Makale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanı × Konu: Fuel Properties ×

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  • Küçük Resim
    Öğe
    The fuel properties of methyl esters produced from canola oil- animal tallow blends by basecatalyzed transesterification
    (Kırıkkale Üniversitesi, 2010-06) Altun, Şehmus; Yaşar, Fevzi; Öner, Cengiz
    Biodiesel is an alternative diesel fuel that can be produced from renewable feedstocks such as vegetable oil or animal fats by transesterification with methanol for using in diesel engines. The viscosity and density of biodiesel fuels are important parameters due to being key fuel properties for injection and combustion process of diesel engines. These fuel properties mainly depend on the feedstock which is used in the biodiesel production. In this study, the blends containing 0, 25, 50, 75 and 100% of food-grade canola oil/inedible animal tallow in volume basis were prepared and converted into methyl esters by base-catalyzed transesterification. Effect of inedible animal tallow-canola oil blends on the viscosity and density of methyl esters were investigated. Experimental results showed that the kinematics viscosity of methyl esters increased as animal tallow ratio increased in the feedstock. Besides, it was observed that density did not change much
  • Küçük Resim
    Öğe
    Biodiesel production from raw cottonseed oil and its performance in a diesel engine
    (Technology, 2011) Adin, Hamit; Yaşar, Fevzi; Öner, Cengiz; Altun, Şehmus
    In this experimental work, raw cottonseed oil was converted by KOH-catalyzed transesterification reaction with methyl alcohol to the cottonseed oil methyl ester (biodiesel) and then tested in a single cylinder, four strokes and direct injection diesel engine at the constant engine speed (2000 rpm) under different engine loads. The composition and the fuel-related properties of produced biodiesel were determined by using gas chromatography (GC) and related instruments. An increase in brake specific fuel consumption (BSFC) and decrease in brake thermal efficiency (BTE) for fuel blends were observed compared with diesel fuel. Compared with diesel fuel, exhaust emissions were found to be lower in carbon monoxide, hydrocarbon, nitrogen oxides and smoke with the use of fuel blends. It was concluded that cottonseed oil methyl esterdiesel fuel blends could be substituted for the diesel fuel without any modifications in diesel engines, with better environmental characteristics of fuel blends.