Dynamics of wet flue gas desulphurization in spray absorber
Апстракт
A concise one dimensional thermal-hydraulic two-fluid model is presented for the numerical prediction of sulphur dioxide absorption from the flue gas onto drops of the water-limestone slurry in the vertical spray tower absorber. The model is based on mass, momentum and energy balance equations for each phase separately, i.e. downward falling droplets of water-limestone slurry and upward flowing flue gas. The sulphur dioxide content in the flue gas is predicted by a balance equation of the sulphur dioxide mass fraction in the flue gas. Interface transfer processes between the flue gas and the droplets are determined by closure laws. The obtained steady-state balance equations are transformed in a form suitable for a direct application of the numerical integration method for the system of ordinary differential equations. The developed thermal-hydraulic model is validated by comparing numerical results with available measured data at the large utility absorber. The presented results clear...ly show the dynamics of flue gas and droplets thermal-hydraulic processes and their influence on the absorption process.
Кључне речи:
Wet flue gas / Two-phase flow / Evaporation / Desulphurization / AbsorptionИзвор:
ECOS 2016 - Proceedings of the 29th International Conference on Efficiency, Cost, Optimisation, Simu, 2016Издавач:
- University of Ljubljana
Scopus: 2-s2.0-85084245474
Колекције
Институција/група
Mašinski fakultetTY - CONF AU - Petrović, Milan M. AU - Stevanović, Vladimir AU - Janković, S. AU - Milivojević, Sanja PY - 2016 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2325 AB - A concise one dimensional thermal-hydraulic two-fluid model is presented for the numerical prediction of sulphur dioxide absorption from the flue gas onto drops of the water-limestone slurry in the vertical spray tower absorber. The model is based on mass, momentum and energy balance equations for each phase separately, i.e. downward falling droplets of water-limestone slurry and upward flowing flue gas. The sulphur dioxide content in the flue gas is predicted by a balance equation of the sulphur dioxide mass fraction in the flue gas. Interface transfer processes between the flue gas and the droplets are determined by closure laws. The obtained steady-state balance equations are transformed in a form suitable for a direct application of the numerical integration method for the system of ordinary differential equations. The developed thermal-hydraulic model is validated by comparing numerical results with available measured data at the large utility absorber. The presented results clearly show the dynamics of flue gas and droplets thermal-hydraulic processes and their influence on the absorption process. PB - University of Ljubljana C3 - ECOS 2016 - Proceedings of the 29th International Conference on Efficiency, Cost, Optimisation, Simu T1 - Dynamics of wet flue gas desulphurization in spray absorber UR - https://hdl.handle.net/21.15107/rcub_machinery_2325 ER -
@conference{ author = "Petrović, Milan M. and Stevanović, Vladimir and Janković, S. and Milivojević, Sanja", year = "2016", abstract = "A concise one dimensional thermal-hydraulic two-fluid model is presented for the numerical prediction of sulphur dioxide absorption from the flue gas onto drops of the water-limestone slurry in the vertical spray tower absorber. The model is based on mass, momentum and energy balance equations for each phase separately, i.e. downward falling droplets of water-limestone slurry and upward flowing flue gas. The sulphur dioxide content in the flue gas is predicted by a balance equation of the sulphur dioxide mass fraction in the flue gas. Interface transfer processes between the flue gas and the droplets are determined by closure laws. The obtained steady-state balance equations are transformed in a form suitable for a direct application of the numerical integration method for the system of ordinary differential equations. The developed thermal-hydraulic model is validated by comparing numerical results with available measured data at the large utility absorber. The presented results clearly show the dynamics of flue gas and droplets thermal-hydraulic processes and their influence on the absorption process.", publisher = "University of Ljubljana", journal = "ECOS 2016 - Proceedings of the 29th International Conference on Efficiency, Cost, Optimisation, Simu", title = "Dynamics of wet flue gas desulphurization in spray absorber", url = "https://hdl.handle.net/21.15107/rcub_machinery_2325" }
Petrović, M. M., Stevanović, V., Janković, S.,& Milivojević, S.. (2016). Dynamics of wet flue gas desulphurization in spray absorber. in ECOS 2016 - Proceedings of the 29th International Conference on Efficiency, Cost, Optimisation, Simu University of Ljubljana.. https://hdl.handle.net/21.15107/rcub_machinery_2325
Petrović MM, Stevanović V, Janković S, Milivojević S. Dynamics of wet flue gas desulphurization in spray absorber. in ECOS 2016 - Proceedings of the 29th International Conference on Efficiency, Cost, Optimisation, Simu. 2016;. https://hdl.handle.net/21.15107/rcub_machinery_2325 .
Petrović, Milan M., Stevanović, Vladimir, Janković, S., Milivojević, Sanja, "Dynamics of wet flue gas desulphurization in spray absorber" in ECOS 2016 - Proceedings of the 29th International Conference on Efficiency, Cost, Optimisation, Simu (2016), https://hdl.handle.net/21.15107/rcub_machinery_2325 .