Measurement of slow burning velocity by zero-gravity method

Kawakami, Tadashige; Okajima, Satoshi; Iinuma, Kazuo

doi:10.1016/s0082-0784(89)80172-9

Cited by 11 publications

(2 citation statements)

References 5 publications

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“…Many studies (e.g., refs , , − ) present measurements of laminar flame velocities of methane at 298 K above atmospheric pressures. Figure shows that our measurements at 1.5, 2, and 3 atm are in very good agreement with those of Goswami et al obtained using the same heat flux method.…”

Section: Resultsmentioning

confidence: 99%

Measurements of Laminar Burning Velocities above Atmospheric Pressure Using the Heat Flux Method—Application to the Case of n-Pentane

et al. 2015

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A new adiabatic burner allowing the measurement of burning velocities at high pressure with the heat flux method has been developed. Experimental measurements of laminar burning velocities of methane and n-pentane were performed for pressures up to 6 atm at 298 K and at atmospheric pressure for temperatures from 298 to 398 K. Equivalence ratios varied from 0.6 to 1.9. The results for methane flames are in good agreement with the only results of literature obtained above atmospheric pressure using the heat flux method; those for n-pentane are to our knowledge the first application of this method to a flame of a liquid fuel above atmospheric pressure. Based on these measurements, empirical correlations of the variation of the measured laminar flame velocities with pressure and temperature have been proposed for methane and n-pentane. In the case of methane, these correlations lead to a satisfactory prediction of literature measurements made using constant volume bombs.

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Section: Resultsmentioning

confidence: 99%

Measurements of Laminar Burning Velocities above Atmospheric Pressure Using the Heat Flux Method—Application to the Case of n-Pentane

et al. 2015

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“…For high dust concentrations, maximum explosion pressure is imposed by the oxygen content and the increase of volatile content, promoted by Table 1 Characteristic parameters of methane gas combustion (Eckhoff, 1997;Hertzberg, Zlochower, & Cashdollar, 1986;Kawakami, Okajima, & Iinuma, 1988) Adiabatic temperature (K) 2250 Limit flame temperature (K) 1450 Su max (m/s) 0.45 Sf max (m/s) 2.6 Auto-inflammation temperature (8C) 580-620 Lower flammability limit (% v/v) 5 Table 2 Characteristic parameters of cork dust explosion (Campos, Lemos, & Borges, 1988;Pilão, 2002;Pilão et al, 2002a,b) Maximum explosion pressure ( the methane addition, does not have any reflection on the increase of the maximum explosion pressure because the combustion development proceeds near the stoichiometric concentrations. However, because the rate of pressure rise has a strong kinetic component it will be expected an increase of this parameter with the rise of the methane content in the atmosphere, but such is only observed for 3.5% (v/v) of methane.…”

Section: Explosion Behaviour Of Cork Dust/methane/air Mixturesmentioning

confidence: 99%