Laser-induced incandescence and Raman measurements in sooting methane and ethylene flames
Literature Information
Laser-induced incandescence (LII) of soot particles is modeled using two non-linear coupled differential equations deduced from the energy- and mass-balance of the process. Experimental data of laminar sooting diffusion flames are taken and the model function is fitted to the individual data curves of every pixel in the two-dimensional flame image. The results of the least squares fit are maps of the soot particle radii and number densities in the flame. Methane and ethylene flames are examined and the results are compared with former measurements. The quality of this fitting algorithm is compared to the reproduction of the data curves by a conventional data evaluation method. The fitting routine for the methane flame is improved by providing local temperature data obtained by Raman measurements. Results for this flame are compared with the local gas concentrations.
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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.














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