Simultaneous determining the temperature and partial pressures of four gases in the high-temperature gaseous mixture
| Autor: | Olga K. Voitsekhovskaya, D. E. Kashirskii, O. V. Egorov |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Work (thermodynamics)
Range (particle radiation) Radiation Materials science 010504 meteorology & atmospheric sciences газовый анализ Thermodynamics углекислый газ Partial pressure окись углерода газообразные смеси Combustion парциальное давление 01 natural sciences Atomic and Molecular Physics and Optics Spectral line chemistry.chemical_compound водяной пар chemistry Carbon dioxide Nitrogen oxide оксид азота Spectroscopy Water vapor 0105 earth and related environmental sciences |
| Zdroj: | Journal of Quantitative Spectroscopy and Radiative Transfer. 2019. Vol. 235. С. 49-59 |
| Popis: | In this work we present a simple method for simultaneous determining the temperature and partial pressures of gases in the gaseous mixture using its transmissivity as input data. The method is focused on remote diagnostics in real time when combustion gas temperature and partial pressure can fluctuate rapidly over a wide range (∆T ∼ 1000 K, ∆ρ ∼ 1 atm). To demonstrate the method, the transmissivity of the mixture including the following gases: H2O, CO2, CO, and NO are considered. The conducted simulations are based on the HITEMP2010 database. It has been shown that potential accuracy of the method is equaled to 0.1% and depends only on the agreements between the theoretical and input (experimental) spectra of the gases. The error in determining the temperature depends linearly on the uncertainty in the input transmissivity: uncertainty of 5% leads approximately to 2% error in temperature. |
| Databáze: | OpenAIRE |
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