- Tytuł:
- Numerical calculations of WR-40 boiler based on its zero-dimensional model
- Autorzy:
- Hernik, B.
- Powiązania:
- https://bibliotekanauki.pl/articles/185324.pdf
- Data publikacji:
- 2014
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
modelowanie CFD
kocioł
spalanie
ruszt
CFD modelling
boilers
combustion
grate - Opis:
- Generally, the temperature of flue gases at the furnace outlet is not measured. Therefore, a special computation procedure is needed to determine it. This paper presents a method for coordination of the numerical model of a pulverised fuel boiler furnace chamber with the measuring data in a situation when CFD calculations are made in regard to the furnace only. This paper recommends the use of the classical 0-dimensional balance model of a boiler, based on the use of measuring data. The average temperature of flue gases at the furnace outlet t”k obtained using the model may be considered as highly reliable. The numerical model has to show the same value of t”k. This paper presents calculations for WR-40 boiler. The CFD model was matched to the 0-dimensional t”k value by means of a selection of the furnace wall emissivity. As a result of CFD modelling, the flue gas temperature and the concentration of CO, CO2, O2 and NOx were obtained at the furnace chamber outlet. The results of numerical modelling of boiler combustion based on volumetric reactions and using the Finite Rate/Eddy-Dissipation Model are presented.
- Źródło:
-
Chemical and Process Engineering; 2014, 35, 2; 173-180
0208-6425
2300-1925 - Pojawia się w:
- Chemical and Process Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł