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Kinetic modeling of total oxidation of propane over rhodium

The heat release rates of fuel-lean propane/air mixtures over a rhodium wire catalyst were measured with microcalorimetry experiments and simulated with a 2D reactive code. Based on these studies, global reaction parameters of the total oxidation of …

Effects of radiation reabsorption on laminar NH3/H2/air flames

Ammonia combustion, owing to its zero greenhouse gas CO2 emission, is attracting attention for energy utilization. However, the thermal radiation of NH3 has not been reported and involved in the numerical simulations of ammonia flames, which may …

Effects of radiation reabsorption on the laminar flame speed and NO emission during aviation kerosene combustion at elevated pressures

Increasing attention has been paid on combustion stability and pollution emission of aviation kerosene due to the emerging interests on supersonic combustion scramjets. Whereas, the vitiation component H2O introduced by hydrogen-fueled heaters in …

In-situ measurements of temperature and emissivity during MSW combustion using spectral analysis and multispectral imaging processing

By using a novel multispectral imaging technology, the 2-D distributions of flame temperature and emissivity were measured in a 16 MW incinerator to co-fire municipal solid waste (MSW) and municipal sludge. A way to establish the relationship between …

Homogeneous ignition of H2/CO/O2/N2 mixtures over palladium at pressures up to 8 bar

The catalytic and gas-phase combustion of fuel-lean H2/CO/O2/N2 mixtures over palladium was investigated experimentally and numerically at a global equivalence ratio φ = 0.285, H2:CO volumetric ratios 1-4, pressures 1-8 bar and catalyst surface …

Heterogeneous and homogeneous combustion of fuel-lean C3H8/O2/N2 mixtures over rhodium at pressures up to 6 bar

The heterogeneous and homogeneous combustion of C3H8/O2/N2 mixtures over Rh was investigated at pressures 1-6 bar, catalyst surface temperatures 680-1100 K and C3H8-to-O2 equivalence ratios 0.25-0.52. Non-intrusive laser-based measurements were …

Self-turbulization in cellularly unstable laminar flames

Effects of C2H2 and C2H4 radiation on soot formation in ethylene/air diffusion flames

The involvement of hydrocarbons such as C2H4 and its combustion intermediate species C2H2 in thermal radi- ation has not been accounted in the numerical simulations of literature studies, which may in turn cause errors in estimating the soot …

Effects of Acetylene Addition to the Fuel Stream on Soot Formation and Flame Properties in an Axisymmetric Laminar Coflow Ethylene/Air Diffusion Flame

The effects of adding acetylene to the fuel stream on soot formation and flame properties were investigated numerically in a laminar axisymmetric coflow ethylene/air diffusion flame using the open-source flame code Co-Flame in conjunction with an …

A review on the applications of non-gray gas radiation models in multi-dimensional systems

Gas radiation is a major way of heat transfer in flames. It affects temperature distributions and hence causes energy transfer in the combustion gaseous as well as subsequent chemical reactions. Accurate and efficient modeling of radiative heat …