Investigation of high fuel injection pressure variation on compression ignition engines powered by jatropha oil methyl ester-heptanol-diesel blends

Khan, Md Modassir; Kadian, Arun Kumar; Sharma, Rishi

doi:10.1016/j.aej.2022.10.009

Cited by 12 publications

(5 citation statements)

References 35 publications

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“…This is due to, SOI timing of the 2 nd pules is a very significant parameter because it responsible on the shape of combustion mode inside of the combustion chamber [22]. For the Dwell time (5,10,15,20, and 25 o CA), SOI timing of the 2 nd pules were (32.1 ,27.1 ,22.0 ,16.8, 11.6 o CA BTDC), respectively. The core site of combustion defined as the zone that distinguished by a higher temperature which is nearest to the piston bowel walls, therefore, increase dwell time leading to shifting SOI timing of 2 nd pules towered TDC which is result in decrease the time required to evaporate the biodiesel [23].…”

Section: Exhaust Gas Temperaturementioning

confidence: 95%

“…(Das, Kashyap, Kalita, Kulkarni, & Itaya, 2020). In the case of higher fuel fraction in 2 nd pulse, more fuel hitting the wall and accumulating in squash zone [20], this can be leads to increasing the stratification within the mixture inside the engine cylinder, therefore the local fuel reactivity increasing. causing to rapidly combustion process and consequently shorting ignition delay.…”

Section: Exhaust Gas Temperaturementioning

confidence: 99%

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Effect of Split and Timing Injection Techniques on Diesel-Biodiesel Blends Fueled RCCI Engines

Al-Abboodi,

Al-Badri,

Abdulsaeed

2024

Engineering Headway

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On reactivity-controlled compression ignition engines, numerical simulations approach were conducted to study the combined effect of the 2nd pulse fraction and dwell time on combustion and emissions characteristics powered by the diesel-biodiesel blends. The Diesel-RK commercial software carried out the simulation the engine was chosen. Meanwhile, the fuel is directly injected through engine cylinder, four stroke, and single cylinder. Simulations were conducted with different dwell times between start of injections of the 1st and 2nd pulses, while the start of injections times of 1st pulse keeping at -40o CA ATDC. Besides, the fuel fraction ratio of the 2nd pulse was changed at 90, 80,70, and 70%, accordingly. In this current study, the peak cylinder pressure and peak cylinder temperature were compared at various boundary conditions. The extracted results extracted from simulation showed that, in contrast to the dwell time 5o CA, a slightly reduction in peak cylinder pressure by 8.9, 7.8, 6.7, and 9.1% for 10, 15. 20, 25o CA respectively. Peak cylinder temperature showed identical trend, its decreased by 9.0, 6.8, 7.8, and 8.8% . Moreover, the results showed that by decreased fuel fraction ratio from 90 to 60%, the peak cylinder pressure increased by 10.1%, while peak cylinder temperature decreased by 7.9%. As a result of the current study, and based on the results of the experimental work published in the literature, it has been consistently demonstrated that the predictive numerical model is reliable..

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Section: Exhaust Gas Temperaturementioning

confidence: 95%

Section: Exhaust Gas Temperaturementioning

confidence: 99%

Effect of Split and Timing Injection Techniques on Diesel-Biodiesel Blends Fueled RCCI Engines

Al-Abboodi,

Al-Badri,

Abdulsaeed

2024

Engineering Headway

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“…The lowest value of NO x emission was reached in the mixture fuel with a 40% heptanol addition. It was found that, at this mixture ratio, BSFC reached the lowest value, while thermal efficiency reached the maximum value [19]. In a study investigating the effect of ternary blends containing higher alcohols 1-heptanol and n-octanol in hybrid biodiesel on a compression ignition engine, experiments were carried out at different loads and constant engine speeds.…”

Section: Introductionmentioning

confidence: 99%

Determination of Optimum Operating Parameters in a Non-Road Diesel Engine Fueled with 1-Heptanol/Biodiesel at Different Injection Pressures and Advances

Balki

2024

Energies

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It is important to reduce the negative environmental effects of non-road diesel engines, which are increasingly used in many facilities and machines, without loss of performance. Biodiesel is used as an alternative to fossil-based diesel fuels to eliminate these effects and ensure sustainability in energy. This study focused on the optimization of the operating parameters of a non-road diesel engine operating with a waste frying oil biodiesel mixture at 50% load. Pure biodiesel, 1-heptanol, different injection advances and pressures were determined as input parameters for optimization. The tests were designed according to Taguchi’s L16 orthogonal array. ANOVA analysis was performed to determine the importance of input parameters on engine performance and exhaust emissions. Optimization was made based on the highest brake thermal efficiency (BTE) in addition to the lowest values of brake-specific fuel consumption (BSFC), brake-specific hydrocarbon (BSHC), brake-specific nitrogen oxide (BSNOx) and smoke emissions. In the optimization carried out according to the response surface methodology (RSM), the optimum combinations to obtain the best engine characteristics were determined as 17.27% 1-heptanol, a 226-bar injection pressure, 27 CAD injection advance and B75. These optimization results were verified by engine experiments within the recommended error range.

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“…When the engine is operating at maximum capacity and an intake pressure of 250 bar, the emissions of CO and HC are measured to be 1.79 and 0.016 g/kWh, correspondingly. The most commonly observed peak cylinder pressure is associated with an average pressure (IP) of 250 bar 12 . The authors adjusted the IP from 400 bar to 500 bar at 10 and 20 Nm loads at 1800 rpm.…”

Section: Introductionmentioning

confidence: 99%

“…The most commonly observed peak cylinder pressure is associated with an average pressure (IP) of 250 bar. 12 The authors adjusted the IP from 400 bar to 500 bar at 10 and 20 Nm loads at 1800 rpm. The ternary blends were put to the test in a CI engine.…”

mentioning

confidence: 99%

Cobalt chromite nanoparticle effects on kapok diesel emulsion performance and emission characteristics at various injection pressures

Anbarasan,

Muralidharan,

Sakthi Rajan

et al. 2024

Env Prog and Sustain Energy

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Alternative fuels derived from vegetable oil have great potential as diesel fuel replacements in the transportation and manufacturing sectors. The aim of this study is to use cobalt chromite nanoparticles as a fuel additive with biodiesel in engine and to experimentally investigate the influence of injection pressure on combustion parameters. As an addition, cobalt chromite nanoparticles are used with biodiesel made from kapok oil, which is blended with mineral diesel at a ratio of 20:80. The engine is operated at various injection pressures (200–260 bar) and with an 80 ppm nanoparticle concentration. The results have shown that the increased injection pressure caused by the use of nanoparticles enhances engine combustion properties, such as the peak pressure and the rate of heat release. The main purpose of this research was to investigate the effects of a CoCr2O4 + KME20 mix on a CI engine, with the hope of improving engine performance characteristics. This investigation examines the effects of varying test fuel injection pressures. The increased injection pressure of CoCr2O4 + KME20 resulted in better performance and combustion. The 240‐bar IP was shown to be superior to lower IPs because of its greater penetration length and more uniform formation. The IP rating of 240 bar represented a significant improvement over competing products with respect to emission controls. In addition to reducing our reliance on fossil fuels, this also prevents harmful chemicals from being released into the air.

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Investigation of high fuel injection pressure variation on compression ignition engines powered by jatropha oil methyl ester-heptanol-diesel blends

Cited by 12 publications

References 35 publications

Effect of Split and Timing Injection Techniques on Diesel-Biodiesel Blends Fueled RCCI Engines

Effect of Split and Timing Injection Techniques on Diesel-Biodiesel Blends Fueled RCCI Engines

Determination of Optimum Operating Parameters in a Non-Road Diesel Engine Fueled with 1-Heptanol/Biodiesel at Different Injection Pressures and Advances

Cobalt chromite nanoparticle effects on kapok diesel emulsion performance and emission characteristics at various injection pressures

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