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On the roles of humidification and radiation during the ignition of ammonia-hydrogen-air mixtures

High-pressure kinetic interactions between CO and H2 during syngas catalytic combustion on PdO

The catalytic combustion of H2/CO/O2/N2 mixtures over PdO was investigated at pressures 3 to 10 bar, H2:CO volumetric ratios 1:5 to 3:1, and global equivalence ratios φ = 0.13 and 0.23. The catalyst surface temperatures were controlled to 540-690 K, …

Fuel-rich hetero-/homogeneous combustion of C3H8/O2/N2 mixtures over rhodium

The catalytic (heterogeneous) and gas-phase (homogeneous) combustion of C3H8/O2/N2 mixtures over rhodium was investigated experimentally and numerically at 5 bar and at fuel rich equivalence ratios φ = 2.0 3.5 relevant to propane Catalytic Partial …

Combustion of biomass pyrolysis gas: Roles of radiation reabsorption and water content

Biomass energy has drawn increased attention owing to its zero carbon emissions and large reserves. Pyrolysis instead of direct combustion is an efficient and clean way for biomass energy conversion. As a strong radiative species, H2O greatly affects …

Impact of ammonia addition on soot and NO/N2O formation in methane/air co-flow diffusion flames

Experimental detection of two-dimensional temperature distribution in Rocket-Based Combined Cycle combustion chamber using multispectral imaging processing

The extremely harsh environment and highly unsteady and transient nature during supersonic combustion bring great challenges for quantitative diagnostics. In the present work, for the first time, we report measurements of two-dimensional …

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 …