Dizel Motorda Hibrit Nanopartikül Kullanımının Emisyonlara Etkisi

Öz

Günümüzde egzoz emisyonları artık ciddi bir sorun hale gelmiştir. Bu sorunun başını dizel motorlar çekmektedir. Araştırmacılar emisyon değerlerini azaltmak birçok alanda çalışma yapmaktadır. Bu alanlardan bir tanesi nanopartikül katkılarıdır. Düşük miktarda nanopartikül katkıları yakıt özelliklerini iyileştirmekte ve emisyonları azaltmaktadır. Bu çalışmada popüler nanopartiküllerden olan Al2O3 ve CeO2 nanopartiküllerini ayrı ayrı ve hibrid bir şekilde çeşitli oranlarda dizel motorda denenmiş emisyon bulguları elde edilmiştir. Edilen bulgulara göre: En düşük NOx emisyonları CeO2 ve Al2O3 katkılarının birlikte kullanıldığı kombinasyonlarda, özellikle AlCe100ppm yakıtında 706 ppm seviyesinde elde edilmiştir. HC (yanmamış hidrokarbon) emisyonları açısından en düşük değer Ce50ppm katkısında (≈35–38 ppm) elde edilmiştir. En düşük opasite değerleri ise CeO2 ve Al2O3 katkılarının birlikte kullanıldığı karışımlarda, özellikle AlCe50’de %3.3 seviyesinde elde edilmiştir. Saf dizele kıyasla, CeO2 katkıları NOx ve HC emisyonlarını artırırken CO’yu düşük yükte yükseltip yükle birlikte düşürmüştür. Al2O3 katkıları NOx’i azaltmış ancak CO’yu yükseltmiştir. En iyi sonuçlar AlCe kombinasyonlarında elde edilmiş, bu durumda NOx, CO, HC ve opasite değerleri saf dizele göre belirgin şekilde azalmıştır. Sonuç olarak hibrit nanopartikül katkısının emisyon değerlerinde olumlu etkiler yaratabildiği gösterilmiştir.

Anahtar Kelimeler

• Dizel Motor
• Emisyonlar
• Nanopartikül

The Effect of Hybrid Nanoparticle Use in Diesel Engines on Emissions

Öz

Today, exhaust emissions have become a serious problem. Diesel engines are at the forefront of this problem. Researchers are working on reducing emissions in many areas. One of these areas is nanoparticle additives. Small amounts of nanoparticle additives improve fuel properties and reduce emissions. In this study, emissions data were obtained by testing popular nanoparticles, Al2O3 and CeO2, separately and in various proportions in a hybrid diesel engine. According to the findings, the lowest NOx emissions were achieved in combinations using CeO2 and Al2O3 additives, particularly at 706 ppm in AlCe100 ppm fuel. The lowest HC (unburned hydrocarbon) emissions were achieved with Ce50 ppm (≈35–38 ppm). The lowest opacity values were achieved in blends using CeO2 and Al2O3 additives together, particularly at 3.3% in AlCe50. Compared to pure diesel, CeO2 additives increased NOx and HC emissions, while increasing CO at low load and decreasing with load. Al2O3 additives reduced NOx but increased CO. The best results were obtained with AlCe combinations, where NOx, CO, HC, and opacity values were significantly reduced compared to pure diesel. Consequently, it was demonstrated that hybrid nanoparticle additives can have positive effects on emissions.

Anahtar Kelimeler

• Diesel Engine
• Emissions
• Nanoparticle

Kaynakça

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