Buji ile Ateşlemeli Bir Motorda E85 ve Benzinin NO Emisyonuna Etkilerinin Deneysel İncelenmesi

Year 2023, Volume: 11 Issue: 4, 1283 - 1295, 28.12.2023

Mustafa Ceyhun Erkoca , Tolga Topgül

https://doi.org/10.29109/gujsc.1333519

Abstract

Enerji ihtiyacı insanoğlunun vazgeçilmez ihtiyaçlarından biridir. Bu noktada önemli olan elde edilebilir kaynağı sürdürülebilir, ekonomik ve ekosisteme duyarlı kullanmaktır. Bu nedenle alternatif yakıtlar bugün olduğu gibi gelecekte de önemini koruyacaktır. İçten yanmalı motorlar konvansiyonel ve hibrit araçlar için güç kaynağı olarak kullanılmaya devam etmektedir. İçten yanmalı motorların sürdürülebilirliği, enerji tüketimine ve emisyon salınımlarına bağlıdır. Bu çalışmada, bir buji ile ateşlemeli motorda ateşleme zamanı ve hava fazlalık katsayısı dikkate alınarak E85 ve benzinin NO emisyonları üzerindeki etkileri deneysel olarak araştırılmıştır. Deneyler, 2000 rpm motor devrinde ve 10:1 sıkıştırma oranında Ricardo Hydra araştırma motorunda gerçekleştirilmiştir. Deneysel sonuçlar, E85 kullanılarak elde edilen motor çıkış gücünün E0'ınkine benzer veya daha fazla olduğunu göstermektedir. E85 için egzoz gazı sıcaklıkları, E0'a kıyasla ortalama 22,6 °C azaldı. E0 ve E85 ile elde edilen tüm deneysel veriler birbiriyle karşılaştırıldığında, kütlesel yakıt tüketiminin ve fren özgül yakıt tüketiminin sırasıyla ortalama %39,3 ve %37,5 arttığı görüldü. Bu çalışmanın sonuçları, özellikle E85'in NO emisyonundaki iyileştirmesinin dikkat çekici olduğunu göstermektedir. 1,05 veya 1,1 hava fazlalık katsayısında maksimum NO noktası dikkate alındığında, E85 ile fren özgül NO emisyonunda %38,4'lük bir azalma elde edildi.

Keywords

Buji ile ateşlemeli motor, alternatif yakıt, E85, motor performansı

Experimental Investigation of the Effects of E85 and Gasoline on NO Emission in a Spark Ignition Engine

Abstract

Energy need is one of the indispensable needs of human beings. At this point, the important thing is to use the available resource that is sustainable, economical, and sensitive to the ecosystem. For this reason, alternative fuels will maintain their importance in the future as they do today. Internal combustion engines continue to be used as power plants for conventional and hybrid vehicles. The sustainability of internal combustion engines depends on their energy consumption and the emissions released. In this study, the effects of E85 and gasoline on NO emissions have been investigated experimentally by considering ignition timing and relative air/fuel ratio in a spark ignition engine. The experiments have been performed on the Ricardo Hydra research engine at 2000 rpm engine speed and a 10:1 compression ratio. The experimental results show that engine output power obtained using E85 was similar to or higher than that of E0. The exhaust gas temperatures for E85 decreased by an average of 22.6 °C, compared to E0. When all experimental data obtained with E0 and E85 were compared with each other, it was seen that gravimetric fuel consumption and brake specific fuel consumption were increased on average by 39.3% and 37.5%, respectively. The results of this study show that especially the improvement of E85 in NO emission is remarkable. Considering the maximum NO point at 1.05 or 1.1 relative air/fuel ratio, a 38.4% reduction in brake specific NO was obtained with E85.

Keywords

Spark ignition engine, alternative fuel, E85, engine performance

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