Abstract
Diode laser sensor is conducted to measure the gas temperature in the liquid-gas 2-phase counter flow flame. C10H22 and city gas were used as liquid fuel and gas fuel, respectively. Two vibrational overtones of H2O were selected and measurements were carried out in the spray flame region stabilized the above gaseous premixed flame. The path-averaged temperature measurement using diode laser absorption method succeeded in the liquid fuel combustion environment regardless of droplets of wide range diameter. The path-averaged temperature measured in the post flame of liquid-gas 2-phase counter flow flame showed qualitative reliable results. The successful demonstration of time series temperature measurement in the liquid-gas 2-phase counter flow flame gave us motivation of trying to establish the effective control system in practical combustion system. These results demonstrated the ability of real-time feedback from combustor inside using the non-intrusive measurement as well as the possibility of application to practical combustion system. Failure case due to influence of spray flame was also discussed.
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Choi, GM., Katsuki, M. & Kim, DJ. Application of dfb diode laser sensor to reacting flow (II) —liquid-gas 2-phase reacting flow—. KSME International Journal 17, 139–145 (2003). https://doi.org/10.1007/BF02984295
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DOI: https://doi.org/10.1007/BF02984295