Characteristics of a Multi-jet Burner in Oxy-Liquefied Petroleum Gas (LPG) Flames

Kim, Hyeon Jun; Choi, Wonyoung; Bae, Soo Ho; Shin, Hyun Dong

doi:10.1021/ef800854e

Cited by 4 publications

(1 citation statement)

References 21 publications

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“…However, it is necessary to consider the influence of thermal dissociation and radical species in those cases. Kim et al 33 used the chemical mechanism of GRI 3.0 to investigate air-fuel (CH 4 ) and oxyfuel (CH 4 ) flames, while another group of researchers 34 showed the effects of thermal dissociation on oxy-fuel (C 3 H 8 ) and air-fuel (C 3 H 8 ) combustion using the EQUIL code in the CHEMKIN packages. Brink et al 35 applied the presumed PDF for the reaction model to oxy-natural gas combustion and compared it with that for the EDC model.…”

Section: Numerical Evaluationmentioning

confidence: 99%

Generation of Silica Nanoparticles in Turbulent Non-premixed Flames with Oxygen Enrichment

Bae¹,

Shin²

2009

Energy Fuels

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Silica nanoparticles were made via the gas-to-particle conversion of tetraethylorthosilicate (TEOS) in co-flowing turbulent methane-oxygen-enriched non-premixed flames. The effects of fuel velocity, oxygen concentration, flame residence time, and temperature distribution on the characteristics of the silica nanoparticles were investigated. The flame length was measured by OH chemiluminescence, using an intensified charge-coupled device (ICCD) camera. The primary particle diameter of the silica nanoparticles was quantitatively measured by transmission electron microscopy (TEM). Particle number concentration, as well as the geometric mean diameter and standard deviation, were measured by a scanning mobility particle sizer (SMPS) spectrometer. Adiabatic temperatures according to oxygen concentration and mixture fraction were calculated from thermodynamic equilibrium calculations, considering chemical species using CHEMKIN EQUIL code. Flame temperature, velocity, and turbulent intensity distributions were calculated using Fluent software adapted to the presumed probability density function (PDF) model, considering chemical species in the turbulent non-premixed methane-oxygen-enriched flame burner without including the particles. For each oxygen concentration condition, the flame residence time, average primary particle diameter, and geometric mean diameter decreased as the fuel velocity increased. Typically, agglomerates of silica nanoparticles were made on averaged primary particle diameters of 9-15 nm and geometric mean diameters of 60-100 nm, according to the oxygen concentration, which varied from 50% to 100% for first jet velocities of 40 and 70 m/s.

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Section: Numerical Evaluationmentioning

confidence: 99%

Generation of Silica Nanoparticles in Turbulent Non-premixed Flames with Oxygen Enrichment

Bae¹,

Shin²

2009

Energy Fuels

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Investigation of the high-temperature field distribution characteristics for a multi-jet burner by OH-PLIF and coherent anti-Stokes Raman spectroscopy

Bai,

Qi,

Yang

et al. 2023

Meas. Sci. Technol.

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The construction of a high-temperature gas calibration source is of great significance since it can provide an effective high-temperature experimental environment for, e.g. verifying high-temperature measurement techniques and studying high-temperature combustion mechanisms. Here, we try to obtain a high-temperature gas field on a multi-jet burner by controlling the gas supplies to it. We use OH planar laser-induced fluorescence (OH-PLIF) to observe the compositional uniformity of the field and coherent anti-Stokes Raman scattering (CARS) to investigate the temperature uniformity of the field. We find from OH-PLIF images that the distribution of OH between the adjacent jets becomes more uniform with the increasing flow rate of CH4, and the flow rate of the co-flow N2 around jets also affects the uniformity of OH distribution. The measured temperature distribution by CARS is consistent with the OH distribution. At the jet outlet location, the temperature distribution had a periodic variation and gradually became more uniform with the height increased from the jet outlet. We find that the flow rate of CH4 and co-flow N2 and the radiative heat transfer rate play an important role in temperature distribution for the multi-jet burner. Also, the results show that a wide range of temperatures can be constructed by regulating the recipe of the gas supplies, and the highest temperature achieved in this work is 2457 K.

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Experimental Study of Effect of CO2

Kim¹,

Park²,

Lee³

et al. 2010

Transactions of the Korean Society of Mechanical Engineers B

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Characteristics of a Multi-jet Burner in Oxy-Liquefied Petroleum Gas (LPG) Flames

Cited by 4 publications

References 21 publications

Generation of Silica Nanoparticles in Turbulent Non-premixed Flames with Oxygen Enrichment

Generation of Silica Nanoparticles in Turbulent Non-premixed Flames with Oxygen Enrichment

Investigation of the high-temperature field distribution characteristics for a multi-jet burner by OH-PLIF and coherent anti-Stokes Raman spectroscopy

Experimental Study of Effect of CO2

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