The potential of oxygenated fuels (n-octanol, methylal, and dimethyl carbonate) as an alternative fuel for compression ignition engines with different load conditions

Wang, Qiwei; Ni, Jimin; Huang, Rong Fung

doi:10.1016/j.fuel.2021.122129

Cited by 18 publications

(6 citation statements)

References 48 publications

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“…The fuel contains mixtures of JFME and decanol with oxygen built to ramp up the interaction between carbon and oxygen and reduce smoke. [ 63 ] The critical factors to the reduction in smoke emissions that may be correlated to the usage of decanol are improved combustion and enhanced oxygen availability.…”

Section: Resultsmentioning

confidence: 99%

“…The HC is generated due to the cylinder's excessive leaning or rich zone and the quenching action. [65] HC emissions of diesel, JFO, JFME, D5, D10, D15, and D20 at maximum load are 75,81,63,55,57,59, and 69 ppm, respectively. Diesel produces more HC emissions due to a critical oxygen deficiency in their molecular structure, whereas for JFO, higher viscosity is the consequence.…”

Section: Hc Emissionsmentioning

confidence: 99%

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Biodiesel from Biomass Waste Feedstock Prosopis Juliflora as a Fuel Substitute for Diesel and Enhancement of Its Usability in Diesel Engines Using Decanol

et al. 2023

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Biomass‐based biofuel production is a promising solution to the decline of fossil fuels. Prosopis juliflora seed‐derived vegetable oil, known as Prosopis juliflora methyl ester (JFME), offers a potential feedstock for biodiesel. To enhance its properties, the addition of Decanol is investigated, a higher‐order alcohol similar to Diesel. Experiments are conducted on a 5.2 kW compression ignition (CI) engine using JFME blended with different decanol concentrations (5%, 10%, 15%, and 20%). Fourier‐transform infrared spectroscopy and gas chromatography‐mass spectrometry analysis confirm its compliance with fuel standards. The findings reveal that the 20% decanol blend (D20) achieves a brake thermal efficiency of 29.9% at full load, with reduced NO, smoke, and hydrocarbon (HC) emissions compared to diesel. D20 shows NO emissions of 1265 ppm, smoke opacity of 53%, and HC emissions of 69 ppm, while diesel records 1320 ppm, 69%, and 75 ppm, respectively. The CO emissions for D20 are 0.359 vol%, slightly higher due to decanol's higher latent heat of evaporation. Moreover, D20 exhibits improved combustion with a higher mass fraction burnt and faster heat release rates. These results indicate the potential of using JFME blended with 20% decanol as an alternative fuel for CI engines, offering higher performance and reduced emissions.

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Section: Resultsmentioning

confidence: 99%

Section: Hc Emissionsmentioning

confidence: 99%

Biodiesel from Biomass Waste Feedstock Prosopis Juliflora as a Fuel Substitute for Diesel and Enhancement of Its Usability in Diesel Engines Using Decanol

et al. 2023

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“…şeklinde hesaplanır. Denklem (13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24), silindir sıcaklığının maksimum olduğu krank mili açısını ve maksimum silindir sıcaklığını interpolasyon ve ekstrapolasyon yöntemleri ile tahmin etmek için kullanılmıştır. Ayrıca, DGDE içeriğinin artması, karışımın viskozitesinin azalmasına ve atomizasyonun iyileşmesine neden olduğu için karışım yakıtları kullanıldığında karbonmonoksit ve hidrokarbon emisyonları ortalama olarak azalmıştır.…”

Section: İnterpolasyon Ve Ekstrapolasyon Yöntemiunclassified

“…Özetlenen çalışmalar [13,[15][16][17][18][19][20][21][22] ile birlikte konuyla ilgili son yıllarda yayınlanmış diğer çalışmalar [23][24][25] Karışım yakıtlarının yoğunlukları (ρ karışım ), setan sayıları (SS karışım ) ve alt ısıl değerleri (H u,karışım ) aşağıdaki denklemler yardımıyla belirlenmiştir [32]:…”

Section: Introductionunclassified

Dizel yakıtı-bitkisel yağ-dietilen glikol dimetil eter karışım yakıtlarının bir dizel motorun performans, yanma ve emisyon karakteristiklerine etkilerinin incelenmesi

Gülüm

2023

NÖHÜ Müh. Bilim. Derg.

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Dizel yakıtı+bitkisel yağ+dietilen glikol dimetil eter karışımlarının tek silindirli bir dizel motorda tam gaz ve farklı devirlerde (1000-2200 devir/dakika) kullanılmasının performans, yanma ve emisyon karakteristiklerine etkileri incelenmiştir. Maksimum silindir sıcaklığı değerleri ile maksimum silindir sıcaklığının elde edildiği krank mili açısı değerleri interpolasyon ve ekstrapolasyon yöntemleriyle tahmin edilmiştir. Silindir sıcaklığının devir sayısı ve krank mili açısına göre değişimi için en küçük kareler regresyonu yardımıyla 3-boyutlu bir denklem elde edilmiştir. Dizel yakıtı kullanımına göre, karışım yakıtları kullanıldığında ortalama olarak tutuşma gecikmesi, maksimum silindir sıcaklığı, egzoz gazı sıcaklığı ve emisyonlar (karbonmonoksit, is ve hidrokarbon) azalmış, fakat özgül yakıt tüketimi artmıştır. Hacimsel olarak % 4 oranında dietilen glikol dimetil eter içeren karışım için efektif verim (% 1.4895), efektif güç (%2.5552), maksimum silindir basıncı (% 2.0448) ve maksimum ısı yayılımı oranı (% 7.6845) artmıştır. Elde edilen 3-boyutlu denklem yardımıyla farklı yakıtlar için hesaplanan silindir sıcaklığı değerlerinin hata oranları % 5’in altındadır.

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“…Compared with other oxygenated fuels, such as methylal and dimethyl carbonate, octanol has been found to improve the heat release rate and thermal efficiency. In terms of emissions, octanol shows a better NO x and soot emission performance compared with the other oxygenated fuels . Gupta and colleagues used different proportions of octanol with diesel in water-cooled CI engines.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation on the Effect of Graphene Oxide in Higher Alcohol Blends and Optimization of Injection Timing Using an ANN Method

Natarajan,

Kandasamy,

Perumal Venkatesan

et al. 2023

ACS Omega

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The use of alternative fuels in diesel engines has become more widespread due to a number of factors, including dwindling petroleum supplies, increasing prices for conventional fossil fuels, and environmental worries about pollutants and greenhouse gas emissions from internal combustion engines. Efficiency and emissions need to be appropriately balanced. Alcohols act as oxygenated fuels similar to octanol, offering a number of benefits over traditional fuels and can boost efficiency, enhance combustion, and reduce air pollution. Therefore, the research aimed to enhance the performance and combustion characteristics of a diesel and octanol blend using graphene oxide (GO) nanoparticles as a fuel additive in a single-cylinder diesel engine while reducing emissions. Research findings will contribute significantly to improving the physical and chemical properties of diesel and octanol blends, thereby mitigating the challenges of limited petroleum reserves and environmental concerns. A range of different blends of diesel and octanol were prepared on a volume/volume basis in proportions of D70OCT30, D60OCT40, and D50OCT50, and then GO was added as a fuel additive to the abovementioned blends in varied proportions (40, 60, and 80 ppm) resulting in nine blends. These blends were analyzed in terms of various performance, combustion, and emission characteristics, and the obtained results helped to shed light on the impact of GO as a fuel additive. The results indicated that the fuel blend D70OCT30GO0.006 yielded the highest values. Furthermore, it is highly imperative that we develop a model that can be used to predict engine behavior and its stability without having to run an engine. For this, a data-driven artificial neural network (ANN) model was developed to predict the optimized injection timing for better combustion and reduced emission. The efficiency and prediction capabilities of the model were compared to the experimental data, which indicated that the ANN model had a better prediction score. The injection timing of the engine was optimized from 21 °CA to 21.5 °CA, which increased the efficiency by 1%. The research findings showed significantly improved physical and chemical properties of the blends, thereby mitigating the challenges of limited petroleum reserves and environmental concerns.

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The potential of oxygenated fuels (n-octanol, methylal, and dimethyl carbonate) as an alternative fuel for compression ignition engines with different load conditions

Cited by 18 publications

References 48 publications

Biodiesel from Biomass Waste Feedstock Prosopis Juliflora as a Fuel Substitute for Diesel and Enhancement of Its Usability in Diesel Engines Using Decanol

Biodiesel from Biomass Waste Feedstock Prosopis Juliflora as a Fuel Substitute for Diesel and Enhancement of Its Usability in Diesel Engines Using Decanol

Dizel yakıtı-bitkisel yağ-dietilen glikol dimetil eter karışım yakıtlarının bir dizel motorun performans, yanma ve emisyon karakteristiklerine etkilerinin incelenmesi

Experimental Investigation on the Effect of Graphene Oxide in Higher Alcohol Blends and Optimization of Injection Timing Using an ANN Method

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