PROPANIN DİZEL YAKITIYLA KULLANIMI: DİZEL MOTOR YAKIT TÜKETİMİ İLE EGZOZ EMİSYONLARI ÜZERİNDEKİ ETKİLERİ

Bu deneysel çalışmada propan-dizel yakıt karışımlarının direk enjeksiyonlu tek silindirli dizel motorda kullanımının yakıt tüketimi ve egzoz emisyonları üzerindeki etkisi araştırılmıştır. Hacimsel olarak %3 propan-%97 dizel ve %6 propan-%94 dizel içeren karışımlar test yakıtı olarak kullanılmıştır. Test yakıtlarına ait yakıt özellikleri dizel yakıt özelliklerine göre farklılık göstermiştir. Dizel yakıtıyla kıyaslandığında, viskozite, ısıl değer, parlama noktası ve setan değerlerinde düşük oranda azalma olmuştur. Motor testleri tam yük şartlarında gerçekleştirilmiştir. Karışımların özgül yakıt tüketimi değerlerinde düşme eğilimi gözlemlenmiştir. Genel olarak, karışım yakıtlara ait egzoz emisyonu değerlerinde iyileşmeler sağlanmıştır. CO ve Partikül madde emisyon değerlerinde sırasıyla % 25.37 ve %12.08’lere ulaşan azalmalar elde edilmiştir. NOx emisyonu değerlerinde kayda değer bir değişim gözlemlenmemiştir.

Anahtar Kelimeler:

Yanma, Alkoller, Dizel motor, Egzoz emisyonları

USE OF PROPANOL WITH DIESEL: EFFECTS ON FUEL CONSUMPTION AND EXHAUST EMISSIONS OF DIESEL ENGINE

In this experimental study, the influences of propanol and diesel mixtures on direct injection single cylinder diesel engine fuel consumption and exhaust emissions were investigated. Volumetrically, 3% propanol - 97% diesel and 6% propanol - 94% diesel blends were used as test fuels. Fuel properties of the test fuels were analyzed and found different from those of diesel fuel. In comparison with diesel, viscosity, heating value, flash point, density and Cetane number decreased slightly. The engine tests were carried out at full load condition of the test engine. Specific fuel consumption values of the blend fuels showed decreasing trend. In general, exhaust emission values of the blends improved. CO and particulate emission values decreased up to 25.37% and up to 12.08%, respectively. NOx emission values with the blend fuels did not change, considerably.

Keywords:

Combustion, Alcohols, Diesel engine, Exhaust emissions,

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