Effect of di-n-butyl ether blending with soybean-biodiesel on spray and atomization characteristics in a common-rail fuel injection system

Guan, Li; Tang, Chenglong; Yang, Ke; Mo, Jun; Huang, Zuohua

doi:10.1016/j.fuel.2014.09.104

Cited by 77 publications

(27 citation statements)

References 27 publications

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“…It is interesting to note that distillate diesel (DD) and blended 60BE40 fuel had a similar tendency of droplet size over the entire range of measurement. This was consistent with the study by Guan, Tang [42] who characterised the diameter size of biodiesel (B100) and diesel by the particle/droplet image analysis (PDIA) technique. They examined that the diameters for the fuels were 25 µm and 20 µm.…”

Section: E100supporting

confidence: 91%

Performance and emission characteristics of micro gas turbine engine fuelled with bioethanol-diesel-biodiesel blends

Saifuddin¹,

Refal²,

Palanisamy³

2017

Int. J. Automot. Mech. Eng.

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Biodiesel is receiving increasing attention as an alternative fuel due to the ever-growing demand for energy. However, the inferior physiochemical properties of biodiesel render it incompatible for gas turbine application, which needs to meet the standard requirement of gas turbine fuel accordance to ASTM D2880. In this quest, the biodiesel-dieselbioethanol blends might be a good option. In this paper, the research work was carried out to study experimentally the performance and exhaust emission characteristics of a 25kW micro gas turbine engine (Capstone Model C30) fuelled with biodiesel-dieselbioethanol blends. The assessment on the improved fuel properties of biodiesel by blending with bio-ethanol had shown more superior atomisation characteristics performance compared to unmodified biodiesel. Moreover, the performance test in the micro gas turbine was limited up to 20% blend of biofuel, which showed improved thermal efficiency during the test. Subsequently, the emission test carried out in this work also showed significant enhancement in emissions, except nitrogen oxides (NOx) which contributed to the higher formation in comparison with the distillate diesel. Finally, B80E20 (80:20 of biodiesel-bioethanol) was proposed to be selected as an ideal blended fuel ratio to be applied in micro gas turbine engine due to its adaptability to replace diesel fuel, while showed better performance and emission properties as compared to the pure petroleum diesel.

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Section: E100supporting

confidence: 91%

Performance and emission characteristics of micro gas turbine engine fuelled with bioethanol-diesel-biodiesel blends

Saifuddin¹,

Refal²,

Palanisamy³

2017

Int. J. Automot. Mech. Eng.

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“…With attractive properties for compression-ignition engines, such as a high cetane number (~100) and high energy density (~38 MJ/kg), di-n-butyl ether (DBE, C8H18O) has been considered as a promising biofuel [1][2][3][4][5][6][7][8]. The use of DBE as a fuel additive has been shown to decrease soot emissions from diesel engines [2,3,5].…”

Section: Introductionmentioning

confidence: 99%

Probing the low-temperature chemistry of di-n-butyl ether: Detection of previously unobserved intermediates

Tran

Wullenkord

et al. 2019

Combustion and Flame

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Din -butyl ether (DBE, C8H18O) has been proposed as a promising biofuel for diesel engines, but details of its low-temperature (LT) oxidation chemistry are not well understood. This paper reports new speciation data obtained in the temperature range of 400-1100 K at ϕ=1 and nearly-atmospheric pressure, using a plug flow reactor (PFR) combined with electron ionization (EI) molecular-beam mass spectrometry (MBMS) and two different jet-stirred reactors (JSRs) coupled with either online gas chromatography (GC) or tunable synchrotron vacuum ultraviolet (SVUV) photoionization (PI)-MBMS. The experimental results confirm that DBE is very reactive and exhibits two negativetemperature coefficient (NTC) zones around 500-550 K and 650-750 K. Speciation data with about 40 C0-C8 species are presented, including about 20 LT species not reported previously. Among those, fuel-specific C8H16O2 cyclic ethers were quantified. Also, butanoic acid, which is present in highest amounts among the detected LT intermediates, and C8H14O3 diones, were found to peak already near 500 K, suggesting their importance in the LT chemistry of DBE. Signals of several highly oxygenated peroxides (e.g., C8H14O5 and C8H16O6) were detected, indicating third O2 addition steps. Respective reaction pathways are suggested and discussed based on these experimental results. To better understand the LT chemistry of DBE, the present data were compared to two recent DBE models [L. Cai et al. Combust. Flame. 161 (2014) 798-809 and S. Thion et al. Combust. Flame 185 (2017) 4-15]. Significant discrepancies between the experimental data and both models were found for important LT intermediates, of which many were not included in the respective mechanisms. The results reported in the present study thus provide new opportunities for refining DBE kinetic models.

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“…Compared with biodiesel, the spray and atomization effects of dimethyl ether (DME) and n-butanol are significantly better for lower viscosity and surface tension [32][33][34] . This is also the primary reason for the observation that DME is better than methanol with respect to spray characteristics 35 , and di-n-butyl ether and di-ethyl ether show the same results 36,37 . Oxygenated fuels with different oxygen groups behave with a larger spray angle, shorter spray penetration and smaller droplets than diesel, and the effect depends on the viscosity and property of the oxygenated fuel 38 .…”

Section: 5-dimethylfuran (Dmf) Is a Type Of Attractive Sustainable mentioning

confidence: 90%

Assessing fuel properties effects of 2,5-dimethylfuran on microscopic and macroscopic characteristics of oxygenated fuel/diesel blends spray

Zhang

Chen

et al. 2020

Sci Rep

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Abstract2,5-Dimethylfuran (DMF) is a type of attractive sustainable green energy for diesel engines that is designed to reduce soot emission. This study investigated the effect of fuel properties on the macroscopic and microscopic spray characteristics of four test blends under injection pressures of 90, 120 and 150 MPa and ambient pressure of 5 MPa in a common diesel rail injection system. The macroscopic results indicate that with higher density, lower viscosity and lower latent heating of DMF20, the spray tip penetration and spray area are increased and the average spray angle is slightly increased. Interestingly, the effect of latent heating on the average spray angle is more obvious than that of kinematic viscosity. The microscopic results suggest that higher density, lower viscosity and lower latent heating of DMF20 have an adverse effect on the breakup of small droplets. The results of comparative analysis show that the change rules of the spray parameters remain nearly unchanged with increased injection pressure, and the influence of DMF20 properties produces a different change in different spray parameters with increasing injection pressure. The meaningful conclusion is that the properties of DMF are favourable to improvement of the spray and atomization parameters under high injection pressure.

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Effect of di-n-butyl ether blending with soybean-biodiesel on spray and atomization characteristics in a common-rail fuel injection system

Cited by 77 publications

References 27 publications

Performance and emission characteristics of micro gas turbine engine fuelled with bioethanol-diesel-biodiesel blends

Performance and emission characteristics of micro gas turbine engine fuelled with bioethanol-diesel-biodiesel blends

Probing the low-temperature chemistry of di-n-butyl ether: Detection of previously unobserved intermediates

Assessing fuel properties effects of 2,5-dimethylfuran on microscopic and macroscopic characteristics of oxygenated fuel/diesel blends spray

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