PİRİDİN VE İZOBÜTANOL KATKILI BENZİN-ETANOL-SU KARIŞIMLARININ TEK SİLİNDİRLİ BENZİN MOTORUNDAKİ PERFORMANS VE EMİSYONLARININ İNCELENMESİ

Year 2021, Volume: 41 Issue: 1, 11 - 21, 30.04.2021

Amirkhan Garayev Silver Güneş Çiğdem Güldür

https://doi.org/10.47480/isibted.979291

Cited By: 1

Abstract

Su toleransını artırmak amacıyla piridin ve izobütanol ile katkılandırılmış benzin-etanol-su yakıt karışımlarının faz dengesi, motor performansı ve gaz emisyonları incelenmiştir. İzobütanol ile kıyaslandığında, piridin katkısının daha yüksek oranda etanol ve su içeren kararlı yakıt karışımları oluşturduğu, katkı miktarının artırılması ile su oranının da arttığı görülmüştür. Yakıt karışımlarının motor performansı ve yanma karakteristikleri tek silindirli, dört zamanlı, buji ateşlemeli (SI) benzin motorunda, değişen motor hızlarında ölçülmüş ve ticari benzin ile karşılaştırılmıştır. En iyi motor performans sonuçları %8,94 etanol, %4,26 su ve %4,21 piridin içeren HEP2 karışımından elde edilmiştir. Söz konusu yakıt karışımı kullanılarak, düşük devirlerde motor torkunda %8,3 artış, yüksek devirlerde ise motor efektif gücünde %5 artış görülmüş, ayrıca optimum devirde özgül yakıt sarfiyatının %14 oranında azaldığı tespit edilmiştir. Ticari benzin karışımı ile kıyaslandığında, NOx, CO ve HC emisyonlarında sırasıyla %32, %17,9 ve %45,9’a varan oranlarda düşüş kaydedilmiştir. Elde edilen bulgular, piridin ve izobütanol katkılandırılmış benzin-etanol-su karışımlarında yakıt özelliklerinin artan etanol ve su oranına bağlı olarak iyileştiğini ve HEP2 karışımının buji ateşlemeli motorlarda daha yüksek motor performansı ve daha düşük emisyon oranı avantajı ile ticari benzin karışımlarına alternatif olarak kullanılabileceğini göstermektedir.

Keywords

Etanollü yakıt, Sulu etanol, Benzin katkı maddesi, Piridin, Izobütanol

PERFORMANCE AND EMISSION CHARACTERISTICS OF PYRIDINE AND ISOBUTANOL ADDED GASOLINE-ETHANOL-WATER BLENDS IN A SINGLE CYLINDER SI GASOLINE ENGINE

Abstract

The phase equilibria, engine performance and gas emissions of gasoline-ethanol-water blends with pyridine and isobutanol added for increased water tolerance, were investigated. It was observed that pyridine addition produced slightly higher ratios of ethanol and water in the stable fuel blend when compared to isobutanol, and the water ratio increased with the additive amount. Engine performances and combustion characteristics of the fuel blends were measured in a single cylinder, four-stroke, spark-ignition (SI) gasoline engine using different engine speeds and compared with the commercial gasoline. The best engine performance results were obtained from the HEP2 blend, consisting of 8.94% ethanol, 4.26% water and 4.21% pyridine. Using this fuel blend, engine torque increased by 8.3% at low speeds, engine effective power increased by %5 at high speeds while specific fuel consumption decreased by 14% at optimum engine speeds. Compared to the commercial gasoline blend, NOx, CO and HC emissions were found to be reduced by as much as %32, %17.9 and %45.9, respectively. Results showed that the fuel properties of pyridine and isobutanol added gasoline-ethanol-water blends were enhanced due to increased ethanol and water content and the HEP2 blend can be used in SI engines as an alternative to commercially available gasoline, with advantages of increased engine performance and reduced emission rates.

Keywords

Ethanol fuel, Hydrous ethanol, Gasoline additive, Pyridine, Isobutanol

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