Determination of particle temperatures in a silica-generating counterflow flame via flame emission measurements |
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| Authors: | Jeonghoon Lee Jason Olfert Igor S Altman Mansoo Choi |
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| Affiliation: | 1. School of Mechanical and Aerospace Engineering/SNU-IAMD, Seoul National University, Seoul 151-742, South Korea;2. Department of Mechanical Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 2G8;3. National CRI Center for Nano Particle Control, Institute of Advanced Machinery and Design, Seoul National University, Seoul 151-742, South Korea;1. Department of Chemistry, Bielefeld University, D-33615 Bielefeld, Germany;2. Combustion Research Facility, Sandia National Laboratories, Livermore, CA 94551, USA;3. Department of Physics, Bielefeld University, D-33615 Bielefeld, Germany;1. Combustion Research Facility, Sandia National Laboratories, Livermore, CA 94551, USA;2. Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA;3. Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA;1. Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli Federico II, P.le V. Tecchio 80, 80125 Napoli, Italy;2. Istituto di Ricerche sulla Combustione, CNR, P.le V. Tecchio 80, 80125 Napoli, Italy;3. Dipartimento di Fisica, Università degli Studi di Napoli Federico II, via Cinthia, 80126 Napoli, Italy;4. CNR-SPIN UOS Napoli, Complesso Universitario di Monte Sant’Angelo, via Cinthia, 80126 Napoli, Italy;1. Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN, USA;2. Research Institute of Sustainable Manufacturing System, Korea Institute of Industrial Technology (KITECH), Cheonan, South Chungcheong, South Korea;3. Kanomax Japan Inc., Suita, Osaka, Japan |
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| Abstract: | We propose a simple technique to measure particle temperatures in a particle generating counterflow flame. The silica particle temperature was derived from flame light emission measurements. This technique allows the non-intrusive measurement of particle temperatures over 2000 K. In addition, the OH concentration distribution in the hydrogen–oxygen flame was estimated from flame emission spectra in the ultraviolet region. A numerical model of the combustion processes, which included the reactions of SiCl4 leading to the formation of silica particles, verified that the measured particle temperatures and OH concentration were close to the theoretical values. |
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