Flameless combustion of low calorific value gases, experiments, and simulations with advanced radiative heat transfer modeling
نویسندگان
چکیده
Thermal radiation is the dominant mode of heat transfer in many combustion systems, and typical flameless furnaces, it can represent up to 80% total transfer. Accurate modeling radiative is, thus, crucial design these large-scale systems. impacts thermochemistry, thereby energy efficiency temperature sensitive species prediction, such as NO x soot. The requirement accurately describe spectral dependence gaseous properties products interacts with finite rate chemistry effects conjugates turbulence. Additionally, because multiple injection fuels and/or oxidizers various compositions, case-specific properties' expressions are required. Along lines, a comprehensive couple reacting flows attempted applied simulation combustion. Radiation modeled using line-based weighted-sum-of-gray-gases approach calculate correlation line-by-line spectra H 2 O CO . emissivity weights absorption coefficients were optimized for range optical thicknesses temperatures encountered considered furnace. Efforts also made on development reliable detailed experimental dataset validation. Measurements performed low calorific value syngas furnace operating under This test rig features thermal charge which extract about 60% release via transfer, making special interest comparison between experiment demonstrated fair prediction balance, temperature, chemical fields.
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ژورنال
عنوان ژورنال: Physics of Fluids
سال: 2022
ISSN: ['1527-2435', '1089-7666', '1070-6631']
DOI: https://doi.org/10.1063/5.0087077