In this study; density, kinematic viscosity, calorific value, flash point and water content of methyl ester produced from cottonseed oil (CO) were determined under varying blend ratio with ultimate euro diesel fuel, also density and kinematic viscosity were investigated at different temperatures. Six different fuel blends (3%, 5%, 10%, 25%, 50% and 75% by volume blending with diesel), cottonseed oil methyl ester (COME), cottonseed oil and diesel were used for experiments. Density of samples was measured 0-93 o C interval with 5 o C increments and kinematic viscosity of samples was measured 298.15-373.15 K interval with 5 K increments. All of the measurements were performed at 20 o C room temperatures. It is found that; density, kinematic viscosity, calorific value, flash point and water content of cottonseed oil are 921.50 kg/m 3 , 31.347 mm 2 /s, 39.278 MJ/kg, 237 o C and 232.90 mg/kg, respectively. For cottonseed oil methyl ester, they are 884.75 kg/m 3 , 4.713 mm 2 /s, 39.254 MJ/kg, 171 o C and 499.19 mg/kg, respectively. The densities of each fuel sample decreased linearly with increasing temperature. But the kinematic viscosities of each fuel sample decreased exponentially with increasing temperature. In addition experimental results, the most commonly used prediction models were used to calculate the density and kinematic viscosity varying with temperature and blend ratio. Also calorific value, flash point and water content were correlated.

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Determination of fuel properties of biodiesel produced from safflower (Carthamus tinctorius L.) Dincer species grown in Yozgat province conditionsAbstract: In this study, the crude oil of the seeds of the cv. Dincer (Barbless), grown in conditions of Yozgat province and that belongs to our country registered safflower (Carthamus tinctorius L.) varieties, was extracted variety. The biodiesel was analyzed that produced from this oil. The fuel properties of Dincer seed crude oil biodiesel determinated such as density at 15 o C (882.97 kg/m 3 ), pH value (6), flash point (178 o C), copper strip corrosion (1a), water content (499.20 mg/kg), calorific value (38.448 MJ/kg), cloud, pour and freezing points (-5.7 o C, -12.9 o C and -15.8 o C) respectively. Based on obtained results it is concluded that the production of biodiesel from the crude oil which extracted from Dincer seeds is suitable for TS EN 14214 standards.