TEK SİLİNDİRLİ BUJİ ATEŞLEMELİ MOTORLARDA BENZİN-PROPANOL-HEKZAN YAKIT KARIŞIMLARININ MOTOR PERFORMANS VE EMİSYONLARINA ETKİSİ

Year 2019, Volume: 39 Issue: 1, 81 - 89, 30.04.2019

Doğan Şimşek Faruk Oral , Niyazi Çolak

Abstract

Bu çalışmada, buji ateşlemeli bir motorda benzin alkol karışımına, hekzan (C6H14) ilavesinin motor performans ve emisyonlarına etkisi incelenmiştir. Yapılan çalışma iki aşamada gerçekleştirilmiştir. İlk aşamada benzin yakıtı içerisine %20 oranında n-propanol ve izo-propanol alkolü ilave edilmiş ve motor performansı açısından değerlendirilmiştir. İkinci aşamada belirlenen yakıt karışımına % 1-3 oranında hekzan ilave edilmiş ve motor performans ve emisyonlarına etkisi incelenmiştir. Çalışmanın ilk aşamasında elde edilen sonuçlarda, benzin içerisine ilave edilen iso-propanol alkolü ile motor performansında n-propanol alkolüne göre iyileşme olduğu görülmüştür. İkinci aşama sonuçlarında ise iso-propanol ilave edilen yakıt karışımına %1 oranında hekzan ilave edilmesi ile motor momentinde ve gücünde önemli bir değişikliğin olmadığı, özgül yakıt tüketiminde (ÖYT) iyileşme olduğu görülmüştür. Artan hekzan ilavesi ile motor performansının kötüleştiği belirlenmiştir. Elde edilen emisyon sonuçlarında, %1 hekzan ilave edilmesi ile benzin yakıtına göre HC ve CO emisyonlarında azalmanın olduğu, NOX emisyonlarında önemli bir değişikliğin olmadığı, CO2 emisyonlarında ise artış olduğu görülmüştür.

Keywords

Buji ateşlemeli motor, n-propanol, izo-propanol, Hekzan, Motor performansı, Egsoz emisyonu

THE EFFECT ON ENGINE PERFORMANCE AND EMISSIONS OF GASOLINE-PROPANOL-HEXANE FUEL BLENDS ON SINGLE CYLINDER SPARK-IGNITION ENGINES

Abstract

In this study, the effect of the addition of small amounts of hexane (C6H14) to the gasoline alcohol mixture in a spark ignition engine is investigated on engine performance and emissions. In the first stage, 20% n-propanol and iso-propanol alcohol are added to the gasoline fuel and evaluated for engine performance. In the second stage, 1-3% of hexane is added to the fuel mixture, and its effect on engine performance and emissions is investigated. In results of the first stage, it is seen that gasoline with iso-propanol added to gasoline improved engine performance compared to n-propanol alcohol. In results of the second stage, there is not any significant change in engine torque and power for adding 1% hexane to the fuel mixture that has iso propanol, but there is a better change in specific fuel consumption (SFC). It is determined that engine performance is worsened with the addition of more hexane. In the emission results, it is observed that the addition of 1% hexane decreased the HC and CO emissions compared to gasoline fuel, increased the CO2 emissions and did not change NOX emissions.

Keywords

Spark ignition engine, n-propanol, iso-propanol, Hexane, Engine performance, Exhaust emissions

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