Identyfikatory
DOI
Warianty tytułu
Języki publikacji
Abstrakty
The primary methods of reducing nitrogen oxides, despite the development of more advanced technologies, will continue to be the basis for NOx reduction. This paper presents the results of multivariate numerical studies on the impact of air staging on the flue gas temperature and composition, as well as on NOx emissions in a OP 230 boiler furnace. A numerical model of the furnace and the platen superheater was validated based on measurements using a 0-dimensional model of the boiler. Numerical simulations were performed using the ANSYS Workbench package. It is shown that changes in the distribution of air to OFA nozzles, the angle of the air outflow from the nozzles and the nozzle location involve a change in the flue gas temperature and in the volume of NOx and CO emissions at the furnace outlet.
Czasopismo
Rocznik
Tom
Strony
59–--74
Opis fizyczny
Bibliogr. 22 poz., rys.
Twórcy
autor
- Institute of Power Engineering and Turbomachinery, Silesian University of Technology, Konarskiego 18, 44-100 Gliwice, Poland
autor
- Institute of Power Engineering and Turbomachinery, Silesian University of Technology, Konarskiego 18, 44-100 Gliwice, Poland
autor
- PGE Dystrybucja S.A., Garbarska 21A, 20-340 Lublin, Poland
Bibliografia
- 1. Al-Abbas A.H., Naser J., Hussein E.K., 2013. Numerical simulation of brown coal combustion in a 550 MW tangentially-fired furnace under different operating conditions. Fuel, 107, 688–698. DOI: 10.1016/j.fuel.2012. 11.054.
- 2. Askarova A., Bolegenova S., Maximov V., Beketayeva M., Safarik P., 2015. Numerical modelling of pulverized coal combustion at thermal power plant boilers. J. Thermal Sci., 24, 275–282. DOI: 10.1007/s11630-015-0784-0.
- 3. Asotani T., Yamashita T., Tominaga H., Uesugi Y., Itaya Y., Mori S., 2008. Prediction of ignition behaviour in a tangentially fired pulverized coal boiler using CFD. Fuel, 87. 482–490. DOI: 10.1016/j.fuel.2007.04.018.
- 4. Biedermann F., Brunner T., Obernberger I., Sippula O., Boman Ch., Ohman M., Bafer L., 2010. Summary and evaluation of existing data on air staging strategies – Project ERA-NET “Future BioTex” Report.
- 5. Buchmayr M., Gruber J., Hargassner M., Hochenauer C., 2016. A computationally inexpensive CFD approach for small-scale biomass burners equipped with enhanced air staging. Energy Convers. Manage., 115, 32–42. DOI: 10.1016/j.enconman.2016.02.038.
- 6. Carroll J.P., Finnan J.M., Biedermann F., Brunner T., ObernbergerI., 2015. Air staging to reduce emissions from energy crop combustion in small scale applications. Fuel, 155, 37–43. DOI: 10.1016/j.fuel.2015.04.008.
- 7. Choi C.R., Kim C.N., 2009. Numerical investigation on the flow, combustion and NOx emission characteristics in a 500MWe tangentially fired pulverized-coal boiler. Fuel, 88, 1720–1731. DOI: 10.1016/j.fuel.2009.04.001.
- 8. Diez L.I., Cortes C., Pallares J., 2008. Numerical investigation of NOx emissions from a tangentially-fired utility boiler under conventional and overfire air operation. Fuel, 87, 1259–1269. DOI: 10.1016/j.fuel.2007.07.025.
- 9. Directive 2010/75/EU of the European Parliament and the Council on industrial emissions.
- 10. Hardy T., Pawlak-Kruczek H., 2017.Reburning: An efficient method for reduction of NOx in boilers steam. Availableat: http://www.spalanie.pwr.edu.pl/badania/publikacje/reburning%20skuteczna%20metoda.PDF (in Polish).
- 11. Hwang M-Y., Ahn S-G., Jang H-C., Kim G-B., Jeon C-H., 2016. Numerical study of an 870MW wall-fired boiler using De-NOx burners and an air staging system for low rank coal. J. Mech. Sci. Technol., 30, 5715–5725. DOI: 10.1007/s12206-016-1142-1.
- 12. Ibrahimoglu B., Yilmazoglu M. Z., Cucen A., 2016. Numerical modelling of repowering of a thermal power plant boiler using plasma combustion systems. Energy, 103, 38–48. DOI: 10.1016/j.energy.2016.02.130.
- 13. Khodaei H., Guzzomi F., Yeoh G. H., Regueiro A., Patino D., 2017. An experimental study into the effect of air staging distribution and position on emissions in a laboratory scale biomass combustor. Energy, 118, 1243–1255. DOI: 10.1016/j.energy.2016.11.008.
- 14. Kuang M., Li Z., Liu C., Zhu Q., 2013. Experimental study on combustion and NOx emissions for a down-fired supercritical boiler with multiple-injection multiple-staging technology without overfire air. Appl. Energy, 106, 254–261. DOI: 10.1016/j.apenergy.2013.01.072.
- 15. Li S., Chen Z., He E., Jiang B., Li Z.,Wang Q., 2017. Combustion characteristics and NOx formation of a retrofitted low-volatile coal-fired 330 MW utility boiler under various loads with deep-air-staging. Appl. Therm. Eng., 110, 223–233. DOI: 10.1016/j.applthermaleng.2016.08.159.
- 16. Liu Y., Fan W., Li Y., 2016. Numerical investigation of air-staged combustion emphasizing char gasification and gas temperature deviation in a large-scale, tangentially fired pulverized-coal boiler. Appl. Energy, 177, 323–334. DOI: 10.1016/j.apenergy.2016.05.135.
- 17. Liu Y.C., Fan W.D., Wu M.Z., 2017. Experimental and numerical studies on the gas velocity deviation in a 600MWe tangentially fired boiler. Appl. Therm. Eng., 110, 553–563. DOI: 10.1016/j.applthermaleng.2016.08.185.
- 18. Nussbaumer T., 1997. Primary and secondary measures for the reduction of nitric oxide emissions from biomass combustion. Dev.Thermochem. Biomass Convers., 1447–1461. DOI: 10.1007/978-94-009-1559-6_113.
- 19. Spliethoff H., GreulU., Rudgier H., Hein K.R.G., 1996. Basic effects on NOx emissions in air staging and reburning at a bench-scale test facility. Fuel, 75, 560–564. DOI: 10.1016/0016-2361(95)00281-2.
- 20. Sun W., Zhong W., Yu A., Liu L., Qian Y.,2016. Numerical investigation on the flow, combustion, and NOx emission characteristics in a 660 MWe tangential firing ultra-supercritical boiler. Adv. Mech. Eng., 8, 1–13. DOI: 10.1177/1687814016630729.
- 21. Yang J., Sun R., Sun S., Zhao N., Hao N., Chen H., Wang Y., Guo H., Meng J., 2014 Experimental study on NOx reduction from staging combustion of high volatile pulverized coals. Part 1. Air staging. Fuel Process. Technol., 126, 255–275. DOI: 10.1016/j.fuproc.2014.04.034.
- 22. Zhang X., Zhou J., Sun S., Sun R., Qin M., 2015. Numerical investigation of low NOx combustion strategies in tangentially-fired coal boilers. Fuel, 142, 215–221. DOI: 10.1016/j.fuel.2014.11.026.
Uwagi
PL
Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-91ba5f80-7e3b-46d9-9fdf-ad20fc405850