Burning Velocities of Alternative Gaseous Fuels at Elevated Temperature and Pressure

Bagdanavičius, Audrius; Bowen, Philip John; Syred, N.; Kay, Peter John; Crayford, Andrew Philip; Sims, G. J.; Wood, John

doi:10.2514/1.43225

Cited by 13 publications

(15 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This procedure was repeated with the present data, and also was applied to those from other researchers, and the results are presented in [13]. Open circle symbols derived experimentally from [20]. explosions [17,18,29], open circle symbols, derived from burner [20].…”

Section: Discussionmentioning

confidence: 99%

“…Open circle symbols derived experimentally from [20]. explosions [17,18,29], open circle symbols, derived from burner [20]. [13].…”

Section: Discussionmentioning

confidence: 99%

“…Two-dimensional laser Doppler velocimetry was employed to measure the velocity profile and turbulence characteristics at the burner exit under the elevated ambient conditions [20]. The integral length scale of the turbulence varied from 7 to 15 mm at 0.3 MPa and from 2 to 8 mm at 0.7 MPa.…”

Section: High Pressure Burner Experimentsmentioning

confidence: 99%

See 2 more Smart Citations

Stretch rate effects and flame surface densities in premixed turbulent combustion up to 1.25 MPa

Bagdanavičius

Bowen

Bradley

et al. 2015

Combustion and Flame

View full text Add to dashboard Cite

Key wordsTurbulent premixed flame, burning velocity, flame stretch rate, flame surface density, Markstein number. AbstractIndependent research at two centres using a burner and an explosion bomb has revealed important aspects of turbulent premixed flame structure. Measurements at pressures and temperatures up to 1.25 MPa and 673 K in the two rigs were aimed at quantifying the influences of flame stretch rate and strain rate Markstein number, Ma sr , on both turbulent burning velocity and flame surface density. That on burning velocity is expressed through the stretch rate factor, I o , or probability of burning, P b 0.5 . These depend on Ma sr , but they grow in importance as the Karlovitz stretch factor, K, increases, and are evaluated from the associated burning velocity data. Planar laser tomography was employed to identify contours of reaction progress variable in both rigs. These enabled both an appropriate flame front for the measurement of the turbulent burning velocity to be identified, and flame surface densities, with the associated factors, to be evaluated. In the explosion measurements, these parameters were derived also from the flame surface area, the derived P b 0.5 factor and the measured turbulent burning velocities. In the burner measurement they were calculated directly from the flame surface density, which was derived from the flame contours.A new overall correlation is derived for the P b 0.5 factor, in terms of Ma sr at different K and this is discussed in the light of previous theoretical studies. The wrinkled flame surface area normalised by the area associated with the turbulent burning velocity measurement, and the ratio of turbulent to laminar burning velocity, u t /u l , are also evaluated. The higher the value of , the more effective is an increased flame wrinkling in increasing u t /u l . A correlation of the product of k and the laminar flame thickness with Karlovitz stretch factor and Markstein number is explored using the present data and those of other workers. Some generality is revealed, enabling the wave length associated with the spatial change in mean reaction progress variable to be expressed by the number of laminar flame thicknesses, and the flame volume to be found.

show abstract

Section: Discussionmentioning

confidence: 99%

“…Open circle symbols derived experimentally from [20]. explosions [17,18,29], open circle symbols, derived from burner [20]. [13].…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Stretch rate effects and flame surface densities in premixed turbulent combustion up to 1.25 MPa

Bagdanavičius

Bowen

Bradley

et al. 2015

Combustion and Flame

View full text Add to dashboard Cite

show abstract

“…The axial and radial velocities were recorded for a range of exit velocities at ambient pressures of 3 and 7 bar and temperatures of 473 K to 673 K. LDA data processing was carried out using DANTEC Flow manager software. The mesurement results using LDA (velocity distribution and turbulence intensity) were reported elsewhere (Bagdanavicius et al, 2010a). Turbulent Reynolds numbers are given in Table 1.…”

Section: Methodsmentioning

confidence: 99%

“…To ensure reliability for each test, 1000 images were recorded at 10 Hz. More detailed description of experimental methodology, image processing methods, and calculation methods can be found elsewhere (Bagdanavicius et al, 2010a(Bagdanavicius et al, , 2010b.…”

mentioning

confidence: 99%

Turbulent Flame Structure of Methane-Hydrogen Mixtures at Elevated Temperature and Pressure

Bagdanavičius¹,

Bowen²,

Syred³

et al. 2013

Combustion Science and Technology

View full text Add to dashboard Cite

The effect of hydrogen addition to methane on premixed turbulent flame has been investigated. Lean, stoichiometric, and rich flames have been tested using a Bunsen burner at 3 bar and 7 bar absolute pressures, and 473 K, 573 K, and 673 K temperatures. Two important turbulent flame structure characterstics, namely flame brush thickness d T and flame surface density R, have been quantified and analyzed. Coefficients of the equations that relate flame brush thickness with progress variable are deduced. Flame surface density and the Bray-Moss-Libby model coefficient g/(r y L y ) for the fuel mixtures studied have been found.

show abstract

Premixed Combustion for Gas-Turbine Applications

Nemitallah

Abdelhafez

Habib

2020

Fluid Mechanics and Its Applications

View full text Add to dashboard Cite

Burning Velocities of Alternative Gaseous Fuels at Elevated Temperature and Pressure

Cited by 13 publications

References 24 publications

Stretch rate effects and flame surface densities in premixed turbulent combustion up to 1.25 MPa

Stretch rate effects and flame surface densities in premixed turbulent combustion up to 1.25 MPa

Turbulent Flame Structure of Methane-Hydrogen Mixtures at Elevated Temperature and Pressure

Premixed Combustion for Gas-Turbine Applications

Contact Info

Product

Resources

About