Viscosity effect on the pressure swirl atomization of an alternative aviation fuel

Dafsari, Reza Alidoost; Lee, Hyung Ju; Han, Jinyu; Park, Dong-Chang

doi:10.1016/j.fuel.2018.11.132

Cited by 84 publications

(28 citation statements)

References 49 publications

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“…Kim et al (2017) found that mean diameter of the particles is proportional to the viscosity of the slurry. Fan et al (2014) and Dafsari et al (2019) indicated that with the increase of viscosity, the unfolded liquid film will show five different forms (from the smooth to the wrinkled). High viscosity will reduce the turbulence of the flow and the breakup of the liquid film, which makes the spray SMD increase.…”

Section: Introductionmentioning

confidence: 99%

Effect of Viscosities on the Spray Characteristics of Pressure Swirl Nozzle

Liu

Lin

Zheng

et al. 2020

JAFM

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The effects of medium viscosity on the spray flow rate, spray Sauter Mean Diameter, droplet velocity and spray cone angle of pressure swirl nozzles are investigated by making use of the particle dynamics analysis system and high-speed photographic system. Based on the axial and radial distribution characteristics of Sauter Mean Diameter and droplet velocity, the water-glycerol mixture is used to simulate medium with a wide range of viscosities. It is found that with the increase of viscosity, the turbulence of the medium flow and the swirling effect is weakened, and the rated pressure becomes larger and the spray flow rate increases. Spray Sauter Mean Diameter and droplet axial velocity becomes larger, while the spray cone angle decreases. The development of the axial velocity distribution of spray cone is characterized by the radial and axial position parameters. The area of the large-droplet region on both sides of spray cone becomes larger, and the area of small-droplet region near the axis becomes smaller.

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Section: Introductionmentioning

confidence: 99%

Effect of Viscosities on the Spray Characteristics of Pressure Swirl Nozzle

Liu

Lin

Zheng

et al. 2020

JAFM

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“…This could be attributed to the value of ΔP in Rizk and Lefebvre [7] and Liao et al, [9] experiments were higher than the present research. Higher ΔP promotes higher tendency for turbulence to occur with growth in the liquid sheet momentum and components of velocity [15]. Effect of ΔP on spray angle has also been investigated by various researchers [6-15-16] which concluded that increase in ΔP enlarge the spray angle.…”

Section: Spray Anglementioning

confidence: 99%

Characteristics of Spray Angle and Discharge Coefficient of Pressure-Swirl Atomizer

Ghaffar

Kasolang

2021

ARFMTS

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A widely distributed spray is an important feature for an atomizer which is required in various applications such as gas cooling, gas turbine combustion, and fluidized bed granulator. Pressure-swirl atomizer is an example of atomizer which provides a wide spray angle through the swirling effect inside the atomizer. One of the important parameters affecting spray angle is atomizer geometrical constant, K. Another important parameter of pressure-swirl atomizer is discharge coefficient, Cd. Discharge coefficient describes the throughput of the liquid flow. An experimental test-rig was constructed to conduct the performance test of the atomizer. Acquired images were analysed using image-processing software. It was found that K has inverse relation with spray angle and direct relation with Cd. Prediction of spray angle and Cd using existing correlations also yields similar trends with the experimental results, but some parameters still need to be considered to perform an accurate prediction.

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“…Viscosity is another crucial parameter related to flow properties as the injection time and transmission properties can be influenced. 18,19 At present, the properties of mixed systems between biofuels and traditional aviation fuels remain elusive, despite the fact that their respective thermophysical properties have been reported. 20−22 In this work, n-undecane (abundantly exists in aviation fuels), methyl decanoate (one of the main components of coconut oil biofuel), and n-butanol (common fuel additive) were selected as model fuels.…”

Section: ■ Introductionmentioning

confidence: 99%

Densities and Viscosities for the Ternary Mixture of n-Undecane (1) + Methyl Decanoate (2) + n-Butanol (3) and Corresponding Binaries from T = 293.15 to 333.15 K and at Atmospheric Pressure

Jiang

Dai

et al. 2021

J. Chem. Eng. Data

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It has been proved that the general performance of aviation fuels can be improved with the addition of biofuels. To understand the fundamental physical properties of the blends, n-undecane, methyl decanoate, and n-butanol were chosen as model compounds to construct a mixed system. Densities (ρ) and viscosities (η) of the ternary system n-undecane + methyl decanoate + n-butanol and its corresponding binary systems n-undecane + methyl decanoate, n-undecane + n-butanol, and methyl decanoate + n-butanol were measured at different temperatures T = (293.15–333.15 K) and atmospheric pressure p = 0.1 MPa. The excess molar volumes (V m E) and the viscosity deviations (Δη) of the binary systems and the ternary system were correlated to the Redlich–Kister equation and four semi-empirical equations, respectively. The V m E values of the ternary system and binary systems are all positive over the entire concentration range at each experimental temperature, while their Δη values are all negative. The experimental results can provide reliable data for the compatibility of biofuels and fossil fuels.

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Viscosity effect on the pressure swirl atomization of an alternative aviation fuel

Cited by 84 publications

References 49 publications

Effect of Viscosities on the Spray Characteristics of Pressure Swirl Nozzle

Effect of Viscosities on the Spray Characteristics of Pressure Swirl Nozzle

Characteristics of Spray Angle and Discharge Coefficient of Pressure-Swirl Atomizer

Densities and Viscosities for the Ternary Mixture of n-Undecane (1) + Methyl Decanoate (2) + n-Butanol (3) and Corresponding Binaries from T = 293.15 to 333.15 K and at Atmospheric Pressure

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