Burning-velocity measurements in a spherical vessel with central ignition

Manton, John; Elbe, Guenther von; Lewis, Bernard

doi:10.1016/s0082-0784(53)80048-2

Cited by 38 publications

(26 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This result can explain large cycle-by-cycle variations of the hydrogen engine at the lean mixture operation [26] . This phenomenon can be explained with the classical models of flame instability due to effects of preferential diffusion proposed by Manton et al [27] and Markstein [28] . The laminar premixed flames will tend to be unstable due to the effects of preferential diffusion under the conditions where the fast-diffusing component (H 2 in the present instance) is deficient (at fuel-lean conditions in the present instance).…”

Section: Laminar Burning Velocity and Markstein Lengthmentioning

confidence: 77%

Measurement of laminar burning velocities and analysis of flame stabilities for hydrogen-air-diluent premixed mixtures

Huang

et al. 2009

Sci. Bull.

View full text Add to dashboard Cite

Section: Laminar Burning Velocity and Markstein Lengthmentioning

confidence: 77%

Measurement of laminar burning velocities and analysis of flame stabilities for hydrogen-air-diluent premixed mixtures

Huang

et al. 2009

Sci. Bull.

View full text Add to dashboard Cite

“…In addition, the Markstein number tends to decline with the increase of hydrogen addition, which reveals that the flame stability decreases with the increase of hydrogen addition. This phenomenon can be explained with the classical models because of the effects of preferential diffusion proposed by Manton et al [24]. The laminar premixed flames tend to be unstable due to the effects of preferential diffusion under the conditions where the fast-diffusing component is deficient.…”

Section: Effect Of Hydrogen Addition On Flame Stabilitymentioning

confidence: 93%

The Effect of Hydrogen Addition on the Combustion Characteristics of RP-3 Kerosene/Air Premixed Flames

Zeng

Liu

et al. 2017

Energies

View full text Add to dashboard Cite

Experimental studies have been performed to investigate the effects of hydrogen addition on the combustion characteristics of Chinese No.3 jet fuel (RP-3 kerosene/air premixed flames. Experiments were carried out in a constant volume chamber and the influences of the initial temperatures of 390 and 420 K, initial pressures of 0.1 and 0.3 MPa, equivalence ratios of 0.6-1.6 and hydrogen additions of 0.0-0.5 on the laminar burning velocities, and Markstein numbers of Hydrogen (H 2 )/RP-3/air mixtures were investigated. The results show that the flame front surfaces of RP-3/air mixtures remain smooth throughout the entire flame propagation process at a temperature of 390 K, pressure of 0.3 MPa, equivalence ratio of 1.3 and without hydrogen addition, but when the hydrogen addition increases from 0.0 to 0.5 under the same conditions, flaws and protuberances occur at the flame surfaces. It was also found that with the increase of the equivalence ratio from 0.9 to 1.5, the laminar burning velocities of the mixtures increase at first and then decrease, and the highest laminar burning velocity was measured at an equivalence ratio of 1.2. Meanwhile, with the increase of hydrogen addition, laminar burning velocities of H 2 /RP-3/air mixtures increase. However, the Markstein numbers of H 2 /RP-3/air mixtures decrease with the increase of hydrogen addition, which means that the flames of H 2 /RP-3/air mixtures become unstable with the increase of hydrogen addition.

show abstract

“…That is, using this calculation, the burning velocity st is not uniquely defined in the early stages of combustion. The values at the standard state (for example, st=0.33 m/s for initial temperature To=293 K and st=0.355 m/s for T0=279 K) are appreciably lower than the values of st=0.43 m/s (Gaydon and Wolfhard 1975) and st=0.40 m/s (Manton et at. 1953), the latter using a similar spherical vessel method to the present.…”

Section: Measurement Of the Laminar Burning Velocitymentioning

confidence: 97%

“…This and possible corrections have been discussed by, for example, Andrews and Bradley (1972), Garforth and Rallis (1978) and Manton, Von Elbe and Lewis (1953). To examine this in an alternative way, the experiments in the present work use different initial temperatures of the mixture combined with calculations which account for the effect of the reaction zone thickness.…”

Section: Introductionmentioning

confidence: 99%

Laminar and turbulent burning velocities of propane in spherical vessels

Tanaka

Milton

1992

Shock Waves

View full text Add to dashboard Cite

Abstract. Laminar and atrbulent burning velocities of C3Hs/air mixtures under moderately elevated temperature and pressure conditions have been determined experimentally using spherical combustion bombs. The results are reported here and the effects of temperature, pressure, turbulence intensity and stoichiometric ratio are included. The results obtained are compared with those of other researchers. The laminar burning velocity obtained from the pressuretime curves without compensation for the reaction zone thickness is lower than those determined using burners. A reaction zone thickness correction which reduces the difference is suggested and this relies on an assessment based on the different histories found experimentally when different initial temperatures were used for the isentrope through the standard state. For mixtures with initially low turbulence levels, both the turbulent burning velocity and the burning velocity ratio, turbulent to laminar, increase as the combustion progresses. The rate of increase becomes larger with increase in the initial and instantaneous turbulence intensity, temperature and stoichiometric ratio. Deviation from the Damkdhler relationship is noted.

show abstract

Burning-velocity measurements in a spherical vessel with central ignition

Cited by 38 publications

References 6 publications

Measurement of laminar burning velocities and analysis of flame stabilities for hydrogen-air-diluent premixed mixtures

Measurement of laminar burning velocities and analysis of flame stabilities for hydrogen-air-diluent premixed mixtures

The Effect of Hydrogen Addition on the Combustion Characteristics of RP-3 Kerosene/Air Premixed Flames

Laminar and turbulent burning velocities of propane in spherical vessels

Contact Info

Product

Resources

About