Laser-Induced Fluorescence (LIF) Probe for <Emphasis Type="Italic">In-situ</Emphasis> Nitric Oxide Concentration Measurement in a Non-thermal Pulsed Corona Discharge Plasma Reactor |
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Authors: | Xudong?Hu Gui-Bing?Zhao S?V?B?Janardhan Garikipati Kim?Nicholas Stanislaw?F?Legowski Email author" target="_blank">Maciej?RadoszEmail author |
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Institution: | (1) Department of Chemical & Petroleum Engineering, University of Wyoming, Laramie, WY 82071, USA;(2) Department of Electrical and Computer Engineering, University of Wyoming, Laramie, WY 82071, USA |
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Abstract: | Laser-induced fluorescence (LIF) is an effective in-situ probe for NO concentrations below 300 ppm in a non-thermal plasma reactor. A new method has been developed to measure in-situ NO concentration in the reactor discharge region using a long-time—on the order of seconds—averaged fluorescence detection. This method, for quantifying NO concentration in a nonthermal plasma reactor, is simpler than a short-time—on the order of nanoseconds—fluorescence detection. For accurate measurement based on the new method, the LIF intensity must be close to the corona-induced fluorescence (CIF) intensity; the CIF intensity serves as a guide in selecting the LIF intensity. We find that a kinetic model proposed earlier works for two-tube reactors and represents the NO concentration in the middle of the reactor, which verifies the assumption of gas plug flow. |
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Keywords: | LIF NO plasma pulsed corona discharge reactor |
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