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Numerical simulation of the heat transfer and NOX emissions in a 660 MW tangentially fired pulverised-coal supercritical boiler

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Abstract

Numerical simulation of the influence of operating conditions of the furnace on its performance characteristics like heat flux distribution, Furnace Exit Gas Temperature (FEGT) and NOx emission levels was performed for a tangentially fired pulverised coal boiler. The results revealed that the FEGT and NOx emission are slightly higher when the top seven coal nozzles are in operation compared to the bottom seven coal nozzles. While the increase in burner tilt led to an increased FEGT, the least NOx emission was obtained for the burner tilt with 0°. The NOx emission started to increase with both increase and decrease in tilt from 0°. In addition, the FEGT and NOx emission were directly and inversely proportional to the percentage of SOFA (Separated OverFire Air) opening respectively. NOx emission was lower by around 7.5% when the air staging was done with the top-most SOFA nozzle instead of the bottom-most SOFA nozzle. However, the FEGT was higher in the former case.

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References

  1. The Gazette of India: Extraordinary, Part-II, Sec. 3(ii), Ministry of Environment, Forest and Climate Change Notification, 2015

  2. Sankar G, Chandrasekhara Rao A, Seshadri PS, Balasubramanian KR (2016) Techniques for measurement of heat flux in furnace waterwalls of boilers and prediction of heat flux – a review. Appl Therm Eng 103:1470–1479

    Article  Google Scholar 

  3. Douglas Smoot L (1984) Modeling of coal combustion processes. Prog Energy Combust Sci 10:229–272

    Article  Google Scholar 

  4. Eaton AM, Smoot LD, Hill SC, Eatough CN (1999) Components, formulations, solutions, evaluation, and application of comprehensive combustion models. Prog Energy Combust Sci 25:387–436

    Article  Google Scholar 

  5. Douglas Smoot, L., Headman, O, Paul., Smith, J, P.: Pulverized coal combustion research at the Brigham Young University. Prog. Energy. Combust. Sci.. 10, 259–341 (1984)

  6. Williams, A., Pourkashanian, M., Jones, J, M.: The combustion of coal and some other solid fuels. Proceedings of the combustion institute. 28, 2141–2162 (2000)

  7. Williams A et al (2002) Modeling coal combustion: the current position. Fuel. 81:605–618

    Article  Google Scholar 

  8. Viskanta R, Menguc M (1987) P.: radiation heat transfer in combustion systems. Prog Energy Combust Sci 13:97–160

    Article  Google Scholar 

  9. Diez, L, I., Cortes, C., Campo, A.: Modelling of pulverized coal boilers: review and validation of on-line simulation techniques. Applied Thermal Engineering. 25, 1516–1533 (2005)

  10. Sankar, G., Santhosh Kumar, D., Balasubramanian, K, R.: Computational modeling of pulverized coal fired boilers – A review on the current position. Fuel. 236, 643–665 (2019)

  11. Richter W (1974) Prediction of heat and mass transfer in a pulverized fuel furnace. Letters in Heat and Mass Transfer 1:83–94

    Article  Google Scholar 

  12. Benesch, W., Kremer, H.: Mathematical modeling of fluid flow and mixing in tangentially fired furnaces. Twentieth Symposium on Combustion, The Combustion Institute. 1391–1400 (1984)

  13. Lockwood, F, C., Shen, B.: Performance predictions of pulverised coal flames of power station furnace and cement kiln types. Twenty-fifth Symposium on Combustion, The Combustion Institute. 503–509 (1994)

  14. Chen, J, Y., Mann, A, P., Kent, J, H.: Computational modeling of pulverised fuel burnout in tangentially fired furnaces. Twenty-fourth Symposium on Combustion, The Combustion Institute. 1381–1389 (1992)

  15. Boyd, R, K., Kent, J, H.: Three-dimensional furnace computer modelling. Twenty-first symposium on Combustion, The Combustion Institute. 265–274 (1986)

  16. Fan, J, R., et al.: Numerical simulation of the flow and combustion processes in a three-dimensional W-shaped boiler furnace. Energy. 22 (8), 847–857 (1997)

  17. Fan J (1999) R., sun, P., Zha, X., Cen, K.: modeling of combustion process in 600 MW utility boiler using comprehensive models and its experimental validation. Energy and Fuels. 13:1051–1057

    Article  Google Scholar 

  18. Fan, J, R., Zha, X, D., Cen, K, F.: Study on coal combustion characteristics in a W-shaped boiler furnace. Fuel. 80, 373–381 (2001)

  19. Fan, J, R., et al.: Computational modeling of pulverized coal combustion processes in tangentially fired furnaces. Chemical Engineering Journal. 8, 261–269 (2001)

  20. Xu, M., Azevedo, J, L, T., Carvalho, M, G.: Modelling of the combustion process and NOx emission in a utility boiler. Fuel. 79, 1611–1619 (2000)

  21. Xu, M., Azevedo, J, L, T., Carvalho, M, G.: Modelling of a front wall fired utility boiler for different operating conditions. Comput. Methods Appl. Mech. Engrg.. 90, 3581–3590 (2001)

  22. Yin C et al (2002) Investigation of the flow, combustion, heat-transfer and emissions from a 609 MW utility tangentially fired pulverized-coal boiler. Fuel. 81:997–1006

    Article  Google Scholar 

  23. Belosevic S, Sijercic M, Oka S, Tucakovic D (2006) Three-dimensional modeling of utility boiler pulverized coal tangentially fired furnace. Int J Heat Mass Transf 49:3371–3378

    Article  Google Scholar 

  24. Asotani T et al (2008) Prediction of ignition behaviour in a tangentially fired pulverized coal boiler using CFD. Fuel. 87:482–490

    Article  Google Scholar 

  25. Choi, C, R., Kim, C, N.: Numerical investigation on the flow, combustion and NOx emission characteristics in a 500 MWe tangentially fired pulverized-coal boiler. Fuel. 88, 1720–1731 (2009)

  26. Zhou H, Mo G, Si D, Cen K (2011) Numerical simulation of the NOx emissions in a 1000 MW tangentially fired pulverized-coal boiler: influence of the multi-group arrangement of the separated over fire air. Energy and Fuels. 25:2004–2012

    Article  Google Scholar 

  27. Liu H, Liu Y, Yi G, Nie L, Che D (2013) Effects of air staging conditions on the combustion and NOx emission characteristics in a 600 MW Wall fired utility boiler using lean coal. Energy and Fuels 27(10):5831–5840

    Article  Google Scholar 

  28. Zha Q, Li D, Wang C, Che D (2017) Numerical evaluation of heat transfer and NOx emissions under deep-air-staging conditions within a 600 MWe tangentially fired pulverized-coal boiler. Appl Therm Eng 116:170–181

    Article  Google Scholar 

  29. Ma L et al (2016) Effect of the separated overfire air location on the combustion optimization and NOx reduction of a 600 MWe FW down-fired utility boiler with a novel combustion system. Appl Energy 180:104–115

    Article  Google Scholar 

  30. Tian D et al (2015) Influence of vertical burner tilt angle on the gas temperature deviation in a 700 MW low NOx tangentially fired pulverised-coal boiler. Fuel Process Technol 138:616–628

    Article  Google Scholar 

  31. Liu, Y, C., Fan, W, D., Wu, M, Z.: Experimental and numerical studies on the gas velocity deviation in a 600 MWe tangentially fired boiler. Applied Thermal Engineering. 110, 553–563 (2017)

  32. Al-Abbas, A, H., Naser, J., Hussein, E, K.: Numerical simulation of brown coal combustion in a 550 MW tangentially-fired furnace under different operating conditions. Fuel. 107, 688–698 (2017)

  33. Da Silva, C, V., Indrusiak, M, L, S., Beskow, A, B.,:CFD Analysis of the Pulverized Coal Combustion Processes in a 160 MWe Tangentially-Fired-Boiler of a Thermal Power Plant. J. of the Braz. Soc. of Mech. Sci. & Eng. 32 (4), 427–436 (2010)

  34. Vuthaluru, R., Vuthaluru, H, B.: Modelling of a wall fired furnace for different operating conditions using FLUENT. Fuel Processing Technology. 87, 633–639 (2016)

  35. Field, M, A,.: Rate of combustion of size-graded fractions of char from a low-rank coal between 1200 K and 2000 K. Combustion and Flame 3, 237–252 (1969)

  36. Knaus, H. et al.: Comparison of different radiative heat transfer models and their applicability to coal-fired utility boiler simulations, https://d-nb.info/1051312949/34.

  37. Diez, L, I., Cortes, C., Pallares, J.: Numerical investigation of NOx emissions from a tangentially-fired utility boiler under conventional and overfire air operation. Fuel. 87, 1259–1269 (2008)

  38. Hill S (2000) C., Douglas Smoot, L.: modeling of nitrogen oxides formation and destruction in combustion systems. Progress in energy and combustion. Science. 26:417–458

    Google Scholar 

  39. Missaghi M, Pourkashanian M, Williams A, Yap L (1990) Proceedings of American flame days conference. USA

  40. De Soete, G, G.: Overall reaction rates of NO and N2 formation from fuel nitrogen, Fifteenth Symposium on Combustion. The Combustion Institute. 1093–1102 (1975)

  41. Naruse, I., Yamamoto, Y., Itoh, Y., Ohtake, K.: Fundamental study on N2O formation/decomposition characteristics by means of low-temperature pulverized coal combustion. Twenty-sixth Symposium on Combustion, The Combustion Institute. 3213–3221 (1996)

  42. Levy JM, Chen LK, Sarofim AF, Beer JM (1981) NO/char reactions at pulverized coal flame conditions. The Combustion Institute, Eighteenth Symposium on Combustion

    Book  Google Scholar 

  43. Ranade, V, V., Gupta, D F.: Computational Modeling of Pulverized Coal Fired Boilers. CRC Press. USA (2015)

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Acknowledgements

The authors take this opportunity to thank the managements of Bharat Heavy Electricals Limited and National Institute of Technology, Trichy for granting permission to publish this research work.

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Authors and Affiliations

  1. Bharat Heavy Electricals Limited, Tiruchirappalli, India

    Sankar G & Santhosh Kumar D

  2. Indian Institute of Technology, Madras, India

    Chandra Sekhar Dhannina

  3. National Institute of Technology, Tiruchirappalli, India

    Balasubramanian K R

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  1. Sankar G
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G, S., Dhannina, C.S., D, S. et al. Numerical simulation of the heat transfer and NOX emissions in a 660 MW tangentially fired pulverised-coal supercritical boiler. Heat Mass Transfer 56, 2693–2709 (2020). https://doi.org/10.1007/s00231-020-02884-z

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