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2014 | 35 | 2 | 173-180
Tytuł artykułu

Numerical Calculations of WR-40 Boiler Based on its Zero-Dimensional Model

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
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 tk" obtained using the model may be considered as highly reliable. The numerical model has to show the same value of tk" . This paper presents calculations for WR-40 boiler. The CFD model was matched to the 0-dimensional tk" 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.
Słowa kluczowe
Wydawca

Rocznik
Tom
35
Numer
2
Strony
173-180
Opis fizyczny
Daty
wydano
2014-06-01
otrzymano
2013-02-22
poprawiono
2013-11-28
zaakceptowano
2014-01-07
online
2014-07-10
Twórcy
  • Silesian University of Technology in Gliwice, Institute of Power Engineering and Turbomachinery, ul. Konarskiego 18, 44-100 Gliwice, Poland, bartlomiej.hernik@polsl.pl
Bibliografia
  • Ansys Fluent. Computational Fluid Dynamics, Ansys Inc., England.
  • Asotani T., Yamashita T., Tominaga H., Uesugi Y., Itaya Y., Mori S., 2008. Prediction of ignition behavior in a tangentially fired pulverized coal boiler using CFD. Fuel, 87, 482-490. DOI:10.1016/j.fuel.2007.04.018.[WoS][Crossref]
  • Dal-Secco S., Hernik B., Pronobis M., Wejkowski R., 2007. Simulations of protection air system in front wall fired boiler OP650 in Rybnik Power Plant. Arch. Combust., 2007, 27, 9-18.
  • Eaton A.M., Smoot L.D., Hill S.C., Eatough C.N., 1999. Components, formulations, solutions, evaluation, and application of comprehensive combustion models. Prog. Energy Combust. Sci., 25, 387-436. DOI: 10.1016/S0360-1285(99)00008-8.[Crossref]
  • He B., Zhu L., Wang J., Liu S., Liu B., Cui Y., Wang L., Wie G. 2007. Computational fluid dynamics based retrofits to reheater panel overheating of No. 3 boiler of Dagang Power Plant. Computers Fluids, 2007, 36, 435-444. DOI: 10.1016/j.compfluid.2005.09.005.[Crossref][WoS]
  • Hernik B., 2012. Numerical modeling of BP 1150 boiler by commercial numerical code. J. Power Technol., 2012, 92, 34-47.
  • Hernik B., Pronobis M., 2012a. A zero-dimensional model used as a basis for numerical modelling of OP-650 boiler. Arch. Energ., 42, 17-26.
  • Hernik B., Pronobis M., 2012b. Verification of the boiler numerical model with a zero-dimensional model, In: G.
  • Stepan (Ed.), Proceedings of the Eight International Conference on Mechanical Engineering, Budapest, Hungary, May 24-25, 2012, 612-623.
  • Kær S.K., Rosendahl L., Baxter L.L., 2006. Towards a CFD-based mechanistic deposit formation model for straw-fired boilers. Fuel, 85, 833-848. DOI: 10.1016/j.fuel.2005.08.016.[Crossref]
  • Scharler R., Obernberger I., 2000. Numerical modelling of biomass grate furnaces. In: Proceedings of the Fifth European Conference on Industrials Furnaces and Boilers, Rio Tinto, Portugal, April 2000.
  • Williams A., Backreedy R., Habib R., Jones J.M., Pourkashanian M., 2002. Modelling coal combustion: The current position. Fuel, 81, 605-618. DOI: 10.1016/S0016-2361(01)00158-2.[Crossref]
  • Yin Ch., Rosendahl L., Kær S.K., Clausen S., Hvid S.L., Hille T., 2008. Mathematical modeling and experimental study of biomass combustion in a thermal 108 MW grate-fired boiler. Energy Fuels, 22, 1380-1390. DOI: 10.1021/ef700689r[Crossref]
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_cpe-2014-0013
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