Quantifying methane vibrational and rotational temperature with Raman scattering
| Autor: | Qin Ong, Badr Amyay, G.J. van Rooij, C.P.J.W. van Kruijsdijk, Cyril Richard, Alex van de Steeg, A.P. van Bavel, Vincent Boudon, Dirk van den Bekerom, Joost Smits, Nicola Gatti, Thomas Butterworth, Teofil Minea |
|---|---|
| Přispěvatelé: | Plasma & Materials Processing, Elementary Processes in Gas Discharges, Applied Physics and Science Education, Laboratoire Interdisciplinaire Carnot de Bourgogne [Dijon] (LICB), Université de Bourgogne (UB)-Université de Technologie de Belfort-Montbeliard (UTBM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique des gaz et des plasmas (LPGP), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Interdisciplinaire Carnot de Bourgogne (LICB), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Thermal equilibrium
Work (thermodynamics) Radiation Materials science 010504 meteorology & atmospheric sciences Rotational temperature Combustion 7. Clean energy 01 natural sciences Temperature measurement Atomic and Molecular Physics and Optics Spectral line [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry symbols.namesake Approximation error symbols Atomic physics Spectroscopy Raman scattering ComputingMilieux_MISCELLANEOUS 0105 earth and related environmental sciences |
| Zdroj: | Journal of Quantitative Spectroscopy and Radiative Transfer, 236:106562. Elsevier Journal of Quantitative Spectroscopy and Radiative Transfer Journal of Quantitative Spectroscopy and Radiative Transfer, Elsevier, 2019, 236, pp.106562. ⟨10.1016/j.jqsrt.2019.07.005⟩ Journal of Quantitative Spectroscopy and Radiative Transfer, 236, 106562 |
| ISSN: | 0022-4073 |
| DOI: | 10.1016/j.jqsrt.2019.07.005 |
| Popis: | This work describes the theoretical basis and implementation of the measurement of vibrational (Tvib) and rotational (Trot) temperatures in CH4 by fitting spontaneous Raman scattering spectra in the Pentad region. This method could be applied for thermal equilibrium temperature measurements applications, e.g. in combustion, or vibrational-rotational non-equilibrium applications, such as in plasma chemistry. The method of calculating these temperatures is validated against known temperature thermal equilibrium spectra up to 860 K from published data, giving an estimated relative error of 10%. This demonstrates that both the calculated stick spectrum and the algorithm to determine Tvib and Trot for CH4 is robust to 860 K, but we expect it is valid to 1500 K. Additionally, a number of non-equilibrium spectra generated with a pulsed microwave plasma are fitted to find Tvib and Trot, further demonstrating the applicability of this method in fitting non-equilibrium spectra. |
| Databáze: | OpenAIRE |
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