### DETERMINATION OF THE WALL VARIABLES WITHIN THE ZONAL MODEL OF RADIATION INSIDE A PULVERIZED COAL-FIRED FURNACE

**DOI Number**

**First page**

**Last page**

#### Abstract

_{t}=0.3 m

^{-1}and

**e**

_{w,in}=0.7. Although both methods can be used for determination of the wall variables, the RRNS method was recommended because the manipulation with files was easier for it. mmended because the manipulation with files was easier for it.

#### Keywords

#### Full Text:

PDF#### References

Yin, C., 2013, Refined weighted sum of gray gases model for air-fuel combustion and its impacts, Energy & Fuels, 27(10), pp. 6287-6294.

Fang, Q., Wang, H., Wei, Y., Lei, L., Duan, X., Zhou, H., 2010, Numerical simulations of slagging characteristics in a down-fired, pulverized-coal boiler furmace, Fuel Processing Technology, 91(1), pp. 88-96.

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 & Fuels, 27(10), pp. 5831-5840.

Belošević, S., Tomanović, I., Beljanski, V., Tucaković, D., Živanović, T., 2015, Numerical prediction of processes for clean and efficient combustion of pulverized coal in power plants, Applied Thermal Engineering, 74, pp. 120-110.

Fan, J., Qian, L., Ma, Y., Sun., P., Cen, K., 2001, Computational modeling of pulverized coal combustion processes in tangentially fired furnaces, Chemical Engineering Journal, 81(1-3), pp. 261-269.

Crnomarkovic, N., Sijercic, M., Belosevic, S., Tucakovic, D., Zivanovic, T., 2014, Radiative heat exchange inside the pulverized lignite fired furnace for the gray radiative properties with thermal equilibrium between phases, International Journal of Thermal Sciences, 85, pp. 21-28.

Hottel, H.C., Sarofim, A.F., 1967, Radiative transfer, McGraw-Hill Book Company, New York.

Tan, C.-K., Jenkins, J., Ward, J., Broughton, J., Heeley, A., 2013, Zone modelling of the thermal performancses of a large-scale bloom reheating furnace, Applied Thermal Engineering, 50(1), pp. 1111-1118.

Zhou, W., Qiu, T., 2015, Zone modelling of radiative heat transfer in industrial furnaces using adjusted Monte-Carlo integral method for direct exchange area calculation, Applied Thermal Engineering, 81, pp. 161-167.

Rhine, J.M., Tucker, R.J., 1991, Modelling of gas-fired furnaces and boilers, McGraw Hill, New York.

Selcuk, N., Batu, A., Ayranci, I., 2002, Performance of method of lines solution of discrete ordinates method in the freeboard of a bubbling fluidized bed combustor, Journal of Quantitative Spectroscopy & Radiative Transfer, 73(2-5), pp. 503-516.

Chudnovsky, B., Karasina, E., Livshits, B., Talanker, A., 1999, Development and application of zonal combustion model for on-line furnace analysis of 575 MW tangential coal firing boiler, Proc. Fifth International Conference on Technologies and Combustion for a Clean Environment, Lisbon, Vol. I, pp. 583-592.

Pieri, G., Sarofim, A. F., Hottel, H. C., 1973, Radiant heat transfer in enclosures: extension of Hottel-Cohen zone method to allow for concentration gradients, Journal of the Institute of Fuel, 46(388), pp. 321-330.

Mechi, R., Farhat, H., Guedri, K., Halouani, K., Said, R., 2010, Extension of the zonal method to inhomogeneous non-gray semi-transparent medium, Energy, 35(1), pp. 1-15.

Modest, M. F., 2013, Radiative heat transfer, Academic Press, New York.

Yuen, W. W., 2006, The multiple absorption coefficient zonal method (maczm), an efficient computational approach for the analysis of radiative heat transfer in multidimensional inhomogeneous nongray media, Numerical Heat Transfer, Part B, 49(2), pp. 89-103.

Crnomarkovic, N.D., Belosevic, S.V., Tomanovic, I.D., Milicevic, A.R., 2016, A new method of the zonal model of radiative heat exchange application by which the correction of the surface zone total emissivities is possible, Proc. International Conference Power Plants 2016, Zlatibor, pp. 1-10.

Crnomarkovic, N., Sijercic, M., Belosevic, S., Tucakovic, D., Zivanovic, T., 2012, Influence of forward scattering on prediction of temperature and radiation fields inside the pulverized coal furnace, Energy, 45(1), pp. 160-168.

Belosevic, S., Sijercic, M., Crnomarkovic, N., Stankovic, B., Tucakovic, D., 2009, Numerical prediction of pulverized coal flame in utility boiler furnaces, Energy & Fuels, 23(11), pp. 5401-5412.

Boow, J., Goard, P.R.C., 1969, Fireside deposits and their effect on heat transfer in a pulverized-fuel-fired boiler. Part III: The influence of the physical characteristics of the deposit on its radiant emittance and effective thermal conductance, Journal of the Institute of Fuel, 42(346), pp. 412-419.

Goetz, G.J., Nskala, N.Y., Borio, R.W., 1979, Development of method for determining emissivities and absorptivities of coal ash deposits, Journal of Engineering for Power, 101(4), pp. 607-614.

Wall, T.F., Lowe, A., Wibberley, L.J., Stewart, I.McC., 1979, Mineral matter in coal and the thermal performance of large boilers, Progress in Energy and Combustion Science, 5(1), pp. 1-29.

Crnomarkovic, N.D., Sijercic, M. A., Belosevic, S. V., Tucakovic, D. R., Zivanovic, T. V., Tomanovic, I. D., Stojanovic, A.D., 2014, Numerical determination of the impact of the ash deposit on the furnace walls to the radiative heat exchange inside the pulverized coal fired furnace, Proc. International Conference Power Plants 2014, Zlatibor, pp. 1-12

Kaye, G.W.C., Laby, T.H., 1995, Tables of physical and chemical constants, Longman, London.

Singer, J.G., 1991, Combustion fossil power, Combustion Engineering, Connecticut.

Sijercic, M., 1998, Mathematical modeling of complex turbulent transport processes, Yugoslav Society of Thermal Engineers and Vinca Institute of Nuclear Sciences, Belgrade, (in Serbian).

Brkic, Lj., Zivanovic, T., Tucakovic, D., 2002, Thermal calculation of steam boilers, Faculty of Mechanical Engineering, Belgrade, (in Serbian).

Blokh, A.G., 1988, Heat transfer in steam boiler furnaces, Hemisphere, New York.

DOI: https://doi.org/10.22190/FUME180227021C

### Refbacks

- There are currently no refbacks.

ISSN: 0354-2025 (Print)

ISSN: 2335-0164 (Online)

COBISS.SR-ID 98732551

ZDB-ID: 2766459-4