Numerical modelling of emissions of nitrogen oxides in solid fuel combustion.
Among the combustion products, nitrogen oxides are one of the main contributors to a negative impact on the environment, participating in harmful processes such as tropospheric ozone and acid rains production. The main source of emissions of nitrogen oxides is the human combustion of fossil fuels. T...
| Publicado en: | Journal of Environmental Management Vol. 215; pp. 177 - 185 |
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| Autores principales: | , , , |
| Formato: | Artículo |
| Publicado: |
Academic Press Inc.
Jun2018
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=128826239&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 128826239 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 03014797 EMJ jtl: Journal of Environmental Management issn: 03014797 maglogo: N pubinfo: dt: Jun2018 vid: 215 pid: 735 pub: Academic Press Inc. artinfo: ui: 128826239 10.1016/j.jenvman.2018.03.014 ppf: 177 ppct: 8 formats: tig: atl: Numerical modelling of emissions of nitrogen oxides in solid fuel combustion. aug: au: Bešenić, Tibor Mikulčić, Hrvoje Vujanović, Milan Duić, Neven affil: Faculty of Mechanical Engineering and Naval Architecture University of Zagreb, Zagreb, Croatia su: Computer simulation Tropospheric ozone Nitrogen oxides Probability density function Probability in quantum mechanics sug: subj: Computer simulation Tropospheric ozone Nitrogen oxides Probability density function Probability in quantum mechanics keyword: CFD Drop tube Solid fuel combustion CFD Drop tube Solid fuel combustion ab: Among the combustion products, nitrogen oxides are one of the main contributors to a negative impact on the environment, participating in harmful processes such as tropospheric ozone and acid rains production. The main source of emissions of nitrogen oxides is the human combustion of fossil fuels. Their formation models are investigated and implemented with the goal of obtaining a tool for studying the nitrogen-containing pollutant production. In this work, numerical simulation of solid fuel combustion was carried out on a three-dimensional model of a drop tube furnace by using the commercial software FIRE. It was used for simulating turbulent fluid flow and temperature field, concentrations of the reactants and products, as well as the fluid-particles interaction by numerically solving the integro-differential equations describing these processes. Chemical reactions mechanisms for the formation of nitrogen oxides were implemented by the user functions. To achieve reasonable calculation times for running the simulations, as well as efficient coupling with the turbulent mixing process, the nitrogen scheme is limited to sufficiently few homogeneous reactions and species. Turbulent fluctuations that affect the reaction rates of nitrogen oxides' concentration are modelled by probability density function approach. Results of the implemented model for nitrogen oxides' formation from coal and biomass are compared to the experimental data. Temperature, burnout and nitrogen oxides' concentration profiles are compared, showing satisfactory agreement. The new model allows the simulation of pollutant formation in the real-world applications. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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