Computational fluid dynamics (CFD) analysis and experimental study for toxic hazardous waste destruction in the cavity incinerator |
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Authors: | Email author" target="_blank">Young?Nam?ChunEmail author |
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Affiliation: | (1) Department of Environmental Engineering, Chosun University, 375 Seosuk-dong, Dong-gu, 501-759 Gwangju, Korea |
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Abstract: | We undertook numerical and experimental studies to develop a better incineration method for the destruction of CC14. A phenomenological model for the turbulent reaction of CC14, including a flame inhibition feature, has been successfully incorporated into a commercial code, simulating the incineration
processes of this compound. The gaseous flow solution was obtained using SIMPLEST, a derivative of Patankar’s SIMPLE algorithm,
with a k-ε turbulence model. A modified fast chemistry turbulent reaction model was developed to describe the flame inhibition
due to the presence of CC14, considering the corresponding burning velocity data of these mixtures. An experiment was carried out on a 5.2 kW laboratory
scale, transportable, cavity-type incinerator, which warrants a sufficient residence time and effective turbulent mixing by
the formation of a strong recirculation region in a combustor. To this end, the specific configuration of the incinerator
was manufactured to consist of two opposing jets and a rearward facing step. The calculated data were in close agreement with
the experimental data for the concentrations of major species, such as CCI4 and HCl, together with the temperature profiles. The experimental test gave the desired DRE of above 99.99%. |
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Keywords: | Hazardous Waste Cavity Incinerator Reaction Model CCl4 Flame Inhibition |
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