Experimental investigation of reactivity controlled compression ignition with n-butanol/n-heptane in a heavy-duty diesel engine

Han, Jinlin; Bao, Hesheng; Somers, Lmt Bart

doi:10.1016/j.apenergy.2020.116164

Cited by 35 publications

(7 citation statements)

References 38 publications

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“…Therefore, the oxygenated blends are more sensitive to exhaust gas recirculation. Low cetane numbers and long delay period are the main properties of oxygenated blends [7,8]. In addition, these properties intensified with addition EGR which result in lower NOX concentrations due to the lower flame temperature [9].…”

Section: Resultsmentioning

confidence: 99%

Investigation the combined effects of exhaust gas recirculation (EGR) and alcohol-diesel blends in improvement of NOX-PM Trade-off in compression ignition (CI) diesel engine

Fayad

Ooda

Chaichan

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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The increasing demand to decrease the greenhouse gas emissions leads to find clean fuel and renewable fuel such as ethanol and methanol that good replacement of oil-derived transportation fuels. The combined effects of alcohols blends (ethanol-diesel and methanol-diesel) and with and without EGR on NOX-PM Trade-off in diesel engine were investigated under variable engine loads and speeds. The EGR is considered efficient technology to reduce the NOX emissions in compression ignition (CI) diesel engines. The current study highlighted on the trade-off between nitrogen oxides (NOX) and particulate matter (PM). The oxygenating content in the ethanol blend (E10) and methanol blend (M10) decrease the PM concentrations in the exhaust pipe compared to the diesel fuel for different engine operating conditions with keep NOX emissions in the moderate level. It was found that the NOX/PM concentrations significantly decreased from the combustion of E10 and M10 under variable engine loads and speeds.

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Section: Resultsmentioning

confidence: 99%

Investigation the combined effects of exhaust gas recirculation (EGR) and alcohol-diesel blends in improvement of NOX-PM Trade-off in compression ignition (CI) diesel engine

Fayad

Ooda

Chaichan

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…Tüm motor devir deneylerinde ve her iki HRF içinde LRF kullanımının doğrudan CO ve HC emisyonunu artırmasının temel sebebinin, silindir içi sıcaklık değeri ve dolgunun yanması için gerekli zamana bağlı olduğu düşünülmektedir. RCCI konseptli motorlarda emme zamanında silindire enjekte edilen LRF'nin tüm sıkıştırma zamanı boyunca silindirde ve cidarlarda soğuk bölgeler oluşturduğu, bunun değişen devir sayısına bağlı olarak CO ve özellikle HC emisyonu oluşturmada artırıcı bir etkiye sebep olduğu belirlenmiştir [25][26][27][28]. Sonuç olarak, yapılan çalışmada LRF olarak benzin kullanımının dizel ve B20'nin HRF olarak kullanıldığı tüm devir deneylerinde CO ve HC emisyonunu artırdığı belirlenmiştir.…”

Section: Bulgular Ve Tartışmaunclassified

Reaktivite Kontrollü Sıkıştırma Ateşlemeli Bir Motorda Motor Devrinin Yanma ve Emisyon Karakteristikleri Üzerindeki Etkisinin Araştırılması

Okcu

Fırat

Varol

et al. 2022

Fırat Üniversitesi Mühendislik Bilimleri Dergisi

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Öz: Yapılan çalışmada, Reaktivite kontrollü Sıkıştırma Ateşlemeli (RCCI) stratejiler altında çalışacak şekilde modifiye edilmiş tek silindirli bir dizel motorda, biyodizel/petrol bazlı dizel karışımı ve benzin kullanımının, yanma ve egzoz emisyon özelliklerine etkisi deneysel olarak araştırılmıştır. Çalışmada dizel ve biyodizel karışımı yüksek reaktiviteli yakıt (HRF), benzin ise düşük reaktiviteli yakıt (LRF) olarak kullanılmıştır. Deneyler 1500, 2000, 2500 ve 3000 d/d olmak üzere dört farklı motor devrinde, %20 yük koşullarında gerçekleştirilmiştir. Çalışmada dizel yakıtının yanında, %20 biyodizel ve %80 petrol kökenli dizel karışımından oluşturulan B20 yakıtı da kullanılmıştır. Dizel ve B20, doğrudan silindire püskürtülürken, benzin emme kanalına enjekte edilmiştir. Elde edilen verilere göre tüm motor devirlerinde RCCI koşullarında LRF kullanımı ile ortalama indike basınç (OİB) değerinin dizel ve B20'ye göre arttığı tespit edilmiştir. Ayrıca, OİB'deki en büyük artış dizelin HRF olarak kullanıldığı deneylerde elde edilmiştir. Öte yandan, LRF'nin kullanılmasıyla NOx emisyonu ve duman opaklığının azaldığı, CO ve HC emisyonunun ise arttığı belirlenmiştir. B20'nin HRF olarak kullanıldığı ve RCCI olmadan yapılan deneylerde HC emisyonu ve duman opaklığı seviyesinin dizele göre daha az olduğu görülmüştür.

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“…It is reported that using butanol blends is a good way to reduce the effect of PM emission through reducing the number and concentration of PM during the combustion process of diesel engine (Xu et al, 2020;. It is showed in the literature that the PM emitted from the combustion of oxygenated fuels has lower size compared to the diesel fuel combustion (Han et al, 2021;Ito et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Diminution of Air Pollution From Nox and Smoke/Soot Emitted From Alcohols/Diesel Blends in Diesel Engine and Influence of the Exhaust Gas Recirculation (Egr)

Fayad

Al-Ani

Dhahad

et al. 2023

Journal of Environmental Engineering and Landscape Management

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In this study, the impact of butanol-diesel blends and exhaust gas recirculation (EGR) on engine performance, NOX emissions, smoke, and particulate matter (PM) characteristics were experimentally investigated under fuel post-injection condition. The maximum peak of cylinder pressure is achieved under without EGR compared with applied different rates of EGR. Furthermore, the brake thermal efficiency (BTE) increased during the combustion of B20 and B10 by 4.25% and 2.61%, respectively, compared with diesel fuel combustion. Considerable reductions in carbonaceous gas emissions (CO and THC) and nitrogen oxides (NOX) were achieved from combustion of B20 and B10 compared to the diesel fuel for with and without EGR. The NOX emissions decreased with 30% of EGR compared with 15% of EGR for all fuels studied. The results indicated that the addition butanol to the diesel fuel significantly reduced smoke opacity and soot emissions by 31.3% and 35.26%, respectively, compared with diesel. It is observed that an effective reduction of the NOX emissions to be higher during the combustion of B20 compared to the combustion of B10 and diesel for different EGR rates. The results of PM emission showed increase by 16% under 15% of EGR and 28% under 30% of EGR compared to the without EGR for all fuels tested. The number, concentration and size of PM decreased from combustion of B20 and B10 compared with diesel fuel combustion for with and without EGR.

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Experimental investigation of reactivity controlled compression ignition with n-butanol/n-heptane in a heavy-duty diesel engine

Cited by 35 publications

References 38 publications

Investigation the combined effects of exhaust gas recirculation (EGR) and alcohol-diesel blends in improvement of NOX-PM Trade-off in compression ignition (CI) diesel engine

Investigation the combined effects of exhaust gas recirculation (EGR) and alcohol-diesel blends in improvement of NOX-PM Trade-off in compression ignition (CI) diesel engine

Reaktivite Kontrollü Sıkıştırma Ateşlemeli Bir Motorda Motor Devrinin Yanma ve Emisyon Karakteristikleri Üzerindeki Etkisinin Araştırılması

Diminution of Air Pollution From Nox and Smoke/Soot Emitted From Alcohols/Diesel Blends in Diesel Engine and Influence of the Exhaust Gas Recirculation (Egr)

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