Extending the predictions of chemical mechanisms for hydrogen combustion: Comparison of predicted and measured flame temperatures in burner-stabilized, 1-D flames

The effect of temperature on the adiabatic burning velocities of diluted hydrogen flames: A kinetic study using an updated mechanism

“…Second, even more important, different models have different predictive abilities even if they were validated against similar or the same commonly accepted sets of laboratory experiments, as it was emphasized by Burke et al [33]. Independent comparison of detailed kinetic schemes for hydrogen combustion clearly reveals these differences as demonstrated by, e.g., Sepman et al [34], Weydahl et al [35] and Bezgin et al [36]. Weydahl et al [35] attempted direct comparison of the most important reactions in the following models: GRI-mech [15], Davis et al [37], Konnov [6], Li et al [32], Ó Conaire et al [9], Williams [38], and Leeds [39].…”

Angle-Dependent Light Scattering Study of Silica Aggregate Growth in 1-D Methane/Air Flames with Hexamethyldisiloxane Admixture: Effects of Siloxane Concentration, Flame Temperature, and Equivalence Ratio

“…The flame temperature is varied by changing the mass flux through the burner while keeping the fuel/air ratio constant (Mokhov and Levinsky, 2000;Sepman et al, 2011). Three equivalence ratios, ϕ, are studied here, ϕ=0.8, 1 and 1.3.…”

“…Three equivalence ratios, ϕ, are studied here, ϕ=0.8, 1 and 1.3. Since prior studies (Mokhov and Levinsky, 2000;Sepman et al, 2013Sepman et al, , 2011 showed that the measured maximum temperatures and those determined by solving the one-dimensional governing equations for A c c e p t e d M a n u s c r i p t 6 burner-stabilized flames agree to within 50 K, here we compute the flame temperature. The results obtained by using the code from the Cantera suite (Goodwin et al, 2015) with the GRI-Mech 3.0 chemical mechanism (Smith et al, n.d.) are shown in Figure 2.…”

“…Chang et al (1998) investigated the effect of adding POCl 3 vapor, to depress the melting point of silica, on silica agglomerate morphology. To our knowledge, no studies have been done that systematically vary flame temperature independently from the equivalence ratio, which is readily obtained in 1-D premixed flames (Sepman et al, 2011). Furthermore, given the interest of the prior studies in the synthesis of ceramic powders, the range of concentrations in studies that examined the effects of precursor concentration (Jalali et al, 2013) are generally above 0.15 mol%.…”

Vibrational CARS thermometry and one-dimensional numerical simulations in CH4/H2/air partially-premixed flames

“…Also, various radiation models were evaluated while performing the numerical simulations. Temperature measurements using CARS were obtained in pure H 2 /air burner stabilized 1-D flames [26]. A sensitivity analysis of change in temperature with a change in mass flux was performed.…”