Determination of the Fuel Properties of Cottonseed Oil Methyl Ester and Its Blends with Diesel Fuel / Pamuk Tohumu Metil Esteri Ve Dizel Yakıt İle Karışımlarının Yakıt Özelliklerinin Belirlenmesi

Year 2014, Volume: 3 Issue: 2, 79 - 90, 06.06.2014

Tanzer Eryılmaz , Murat Yeşilyurt , Hasan Yumak , Mevlüt Arslan , Seda Şahin

https://doi.org/10.18245/ijaet.90992

Cited By: 7

Abstract

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 0-93oC interval with 5oC 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 20oC room temperatures. It is found that; density, kinematic viscosity, calorific value, flash point and water content of cottonseed oil are 921.50 kg/m3, 31.347 mm2/s, 39.278 MJ/kg, 237oC and 232.90 mg/kg, respectively. For cottonseed oil methyl ester, they are 884.75 kg/m3, 4.713 mm2/s, 39.254 MJ/kg, 171oC 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.

Özet: Bu çalışmada; pamuk tohumu yağından (CO) üretilen metil ester içeriğinin yoğunluğu, kinematik viskozitesi, kalorifik değeri, parlama noktası ve su içeriği Euro dizel yakıtı ile çeşitli karışım durumlarında belirlenmiştir ve yoğunluk ile kinematik viskozite değeri farklı sıcaklıklarda incelenmiştir. Altı farklı karışım (dizel yakıtla hacimsel oranda %3, %5, %10, %25, %50 ve %75) pamuk tohumu metil esteri (COME), pamuk tohumu yağı ve dizel deneylerde kullanılmıştır. Numunelerin yoğunlukları 0-93 oC aralığında 5 oC artışlarla ölçülmüştür ve kinematik viskozite değerleri 298.15-373.15 K aralığında 5 K’lik artışlarla ölçülmüştür. Bütün ölçümler 20 oC oda sıcaklığında gerçekleştirilmiştir. Pamuk tohumu yağının yoğunluk, kinematik viskozite, kalorifik değer, parlama noktası ve su içeriğinin sırasıyla 921.50 kg/m3, 31.347 mm2/s, 39.278 MJ/kg, 237oC ve 232.90 mg/kg olduğu bulunmuştur. Pamuk tohumu yağı metil esteri için bu değerler sırasıyla 884.75 kg/m3, 4.713 mm2/s, 39.254 MJ/kg, 171oC ve 499.19 mg/kg olarak bulunmuştur. Her numunenin yoğunluğu sıcaklık ile doğrusal orantılı şekilde azalmıştır. Fakat numunelerin kinematik viskozite değerleri artan sıcaklığa bağlı olarak eksponansiyel biçimde azalmıştır. Deneysel sonuçlara ek olarak sıcaklığa ve karışım oranına bağlı şekilde yoğunluk ve kinematik viskozite değerleri sıkça kullanılan tahmin modelleri ile hesaplanmıştır. Ayrıca kalorifik değerler, parlama noktaları ve su içerikleri de matematiksel olarak ilişkilendirilmiştir.

Keywords

Cottonseed oil, cottonseed oil methyl ester, blends, fuel property, density, kinematic viscosity, prediction / Pamuk tohumu yağı, pamuk tohumu yağı metil esteri, karışımlar, yakıt özellikleri, yoğunluk, kinematik viskozite, tahmin

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