Investigation of The Effects of Safflower Biodiesel Blends with Eurodiesel Fuel on Engine Performance and Emissions in Common-Rail Diesel Engine

Bu çalışmada transesterifikasyon yöntemi ile Aspir yağından biyodizelüretilmiştir. Çalışmada kullanılan deney motoru, common-rail yakıt sisteminesahip, su soğutmalı ve 4-silindirli 4 zamanlı diesel motorudur. Üretilenbiyodizelden B2 (%2 Aspir biyodizeli, %98 Eurodizel), B10 ve B50 karışımlarıhazırlanmış, referans yakıt olarak da Eurodizel kabul edilmiş ve sonuçlarkarşılaştırmalı olarak verilmiştir. Biyodizel kullanıldığında motor performansındagözlenen değişikliklerde başlıca etken yakıtın ısıl değerinin Eurodizele göre düşükolmasıdır. Kısmi yük şartlarında biyodizelin bünyesindeki oksijenin yakıtınoksidasyonunu iyileştirmesi sonucu motor gücünde artış olmuştur. Emisyondeğişimleri alternatif yakıtların üretmiş olduğu emisyonlar bakımından referansyakıt ile uyum içerisinde yer alırken artma ve azalma oranlarında kısmı farklılıklaroluşturmaktadır. Deneylerde kullanılan motorun yakıtı çok yüksek basınç altındatutmasından dolayı HC emisyonları diğer motorlara göre düşük çıkmıştır.Biyodizel kullanımında, yakıt içeriğinde oksijen bulunması sebebi ile egzozgazlarındaki NOx miktarında artış olmuştur. Yapılan bu çalışmada da egzozgazları içindeki NOx miktarının en fazla B100 yakıtında olduğu görülmüştür.

Common-Rail Dizel Motorda Aspir Biyodizeli ile Eurodizel Karışımlarının Motor Performansı ve Emisyonlarına Etkisinin İncelenmesi

ın this study, produced by the transesterification method safflower methylester material is used. Trials, 4-stroke, 4-cylinder, with engine test wasconducted in a water-cooled engine has common rail fuel system. And B2 (2% vsafflower biodiesel - 98% Eurodiesel), B10 and B50 biodiesel-Eurodiesel fuelblends have been accepted as the reference fuel. The results are given incomparatively. The main factor of the observed changes in engine performancewhen biodiesel is used is the low calorific value fuel compared to Eurodieselfuel. There is an increase in engine power as a result of the improvement of thefuel oxidation of oxygen in the body of biodiesel in the partial load conditions.While emission changes are taking place in accordance with the terms ofreference fuel emission produced by alternative fuels, it has constructed thepartial differences in the rate of increase and decrease. Due to the fact that theengine used in the experiments keeps the fuel under a very high pressure, HCemissions are lower than the other engines.

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