Evaluation of Performance and Emission Characteristics of a VCR Diesel Engine Fuelled with Diesel Fuel and Diesel-Biodiesel-Alcohol Blends

Öz

In this study, performance and emission characteristics of a variable compression ratio (VCR) diesel engine fuelled with diesel fuel and diesel-biodiesel-alcohols blends have been evaluated in detail. The results of performance and emission characteristics of fuel blends were compared with low sulphur diesel fuel. Experimental study showed that biodiesel and alcohol addition to diesel fuels slightly affects the performance, combustion and emissions characteristics of the engine. The results showed that the increasing biodiesel ratio in the blend resulted in decrease of brake thermal efficiency and increment of specific fuel consumption (SFC). Furthermore, it was revealed that addition of alcohols and biodiesel fuel decreased carbon monoxide emission and increased NOx and carbon dioxide emissions.

Anahtar Kelimeler

• Performance,Emission,Butanol,Ethanol,Biodiesel

Dizel, Dizel-Biyodizel-Alkol Yakıt Karışımlı Sıkıştırma Oranı Değişen Bir Dizel Motorun Performans ve Emisyon Karakteristiklerinin Değerlendirilmesi

Öz

Bu çalışmada, sıkıştırma oranı değiştirilebilir dizel ve dizel-biyodizel-alkol karışımları kullanılan bir dizel motorun performans ve emisyon özellikleri ayrıntılı olarak değerlendirilmiştir. Yakıt karışımlarının performans ve emisyon karakteristik sonuçları, düşük kükürtlü dizel yakıt ile karşılaştırılmıştır. Deneysel çalışma, dizel yakıtlara biyodizel ve alkol ilavesinin motor performansını, yanma ve emisyon özelliklerini çok az etkilediğini göstermiştir. Sonuçlar, karışımdaki biyodizel oranı artışının, ısıl verimde azalışa ve özgül yakıt tüketiminde (SFC) ise ait artışa neden olduğunu göstermiştir. Ayrıca, alkol ve biyodizel yakıt ilavesinin karbon monoksit emisyonunu azalttığını ve NOx ve karbon dioksit emisyonlarını ise arttırdığını ortaya çıkarmıştır

Anahtar Kelimeler

• Performans,Emisyon,Bütanol,Etanol,Biyodizel

Kaynakça

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