Experimental and numerical study on soot formation and oxidation by using diesel fuel in constant volume chamber with various ambient oxygen concentrations

Bi, Xiaojie; Liu, Haifeng; Huo, Ming; Shen, Cai; Qiao, Xinqi; Lee, Chia-fon F.

doi:10.1016/j.enconman.2014.04.023

Cited by 43 publications

(17 citation statements)

References 60 publications

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“…But, the natural luminosities and soot emissions were reduced simultaneously at 800 K ambient temperature as shown in Figure 14. Further analysis conducted by Bi et al [75] found Journal of Chemistry Figure 14: Natural flame luminosity and soot distribution for soybean biodiesel at 800 K ambient temperature [68].…”

Section: Chemiluminescence/natural-luminosity Analysis Of Ltcmentioning

confidence: 99%

“…However, due to lower charge density, in-cylinder pressure, and temperature, the liquid fuel impingement on the liner wall or piston wall is unavoidable, which leads to high HC and CO emissions and oil dilution. In recent ten years, high EGR dilution low-temperature combustion (LTC) has gained tremendous attention [67][68][69][70][71][72][73][74][75]. For LTC, the start of injection is near to top dead center; therefore the injection timing can control the autoignition timing to some extent.…”

Section: Chemiluminescence/natural-luminosity Analysis Of Ltcmentioning

confidence: 99%

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A Review on Homogeneous Charge Compression Ignition and Low Temperature Combustion by Optical Diagnostics

Jin

Zheng

2015

Journal of Chemistry

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Optical diagnostics is an effective method to understand the physical and chemical reaction processes in homogeneous charge compression ignition (HCCI) and low temperature combustion (LTC) modes. Based on optical diagnostics, the true process on mixing, combustion, and emissions can be seen directly. In this paper, the mixing process by port-injection and direct-injection are reviewed firstly. Then, the combustion chemical reaction mechanism is reviewed based on chemiluminescence, natural-luminosity, and laser diagnostics. After, the evolution of pollutant emissions measured by different laser diagnostic methods is reviewed and the measured species including NO, soot, UHC, and CO. Finally, a summary and the future directions on HCCI and LTC used optical diagnostics are presented.

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Section: Chemiluminescence/natural-luminosity Analysis Of Ltcmentioning

confidence: 99%

Section: Chemiluminescence/natural-luminosity Analysis Of Ltcmentioning

confidence: 99%

A Review on Homogeneous Charge Compression Ignition and Low Temperature Combustion by Optical Diagnostics

Jin

Zheng

2015

Journal of Chemistry

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“…Soot formation of diesel spray combustion has been studied under different diluted conditions [11]. It has been demonstrated that LTC is the most promising technology for future diesel engines with simultaneous reduction of soot and NO x emissions [12].…”

Section: Introductionmentioning

confidence: 99%

Spray combustion of Jet-A and diesel fuels in a constant volume combustion chamber

Wei

Roberts

Fang

2015

Energy Conversion and Management

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“…The diameter of the droplet generated due to the primary atomisation depends on the atomisation length scale L A , as seen in Eq. (15). After the primary atomisation, the droplets with the target diameter R t are created due to the secondary atomisation.…”

Section: Eulerian Multiphase Approachmentioning

confidence: 99%

“…simulations [15]. Numerical modelling of spray processes is a very challenging task compared to a single phase flow.…”

Section: Introductionmentioning

confidence: 99%

Numerical modelling of diesel spray using the Eulerian multiphase approach

Vujanović

Petranović

Edelbauer

et al. 2015

Energy Conversion and Management

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a b s t r a c tThis research investigates high pressure diesel fuel injection into the combustion chamber by performing computational simulations using the Euler-Eulerian multiphase approach. Six diesel-like conditions were simulated for which the liquid fuel jet was injected into a pressurised inert environment (100% N 2 ) through a 205 lm nozzle hole. The analysis was focused on the liquid jet and vapour penetration, describing spatial and temporal spray evolution. For this purpose, an Eulerian multiphase model was implemented, variations of the sub-model coefficients were performed, and their impact on the spray formation was investigated. The final set of sub-model coefficients was applied to all operating points. Several simulations of high pressure diesel injections (50, 80, and 120 MPa) combined with different chamber pressures (5.4 and 7.2 MPa) were carried out and results were compared to the experimental data. The predicted results share a similar spray cloud shape for all conditions with the different vapour and liquid penetration length. The liquid penetration is shortened with the increase in chamber pressure, whilst the vapour penetration is more pronounced by elevating the injection pressure. Finally, the results showed good agreement when compared to the measured data, and yielded the correct trends for both the liquid and vapour penetrations under different operating conditions.

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Experimental and numerical study on soot formation and oxidation by using diesel fuel in constant volume chamber with various ambient oxygen concentrations

Cited by 43 publications

References 60 publications

A Review on Homogeneous Charge Compression Ignition and Low Temperature Combustion by Optical Diagnostics

A Review on Homogeneous Charge Compression Ignition and Low Temperature Combustion by Optical Diagnostics

Spray combustion of Jet-A and diesel fuels in a constant volume combustion chamber

Numerical modelling of diesel spray using the Eulerian multiphase approach

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