MATHEMATICAL MODEL OF THE PROCESSES OF BIOMASS AND COAL CO-FIRING IN TPP BOILERS

N.I. Dunayevska, Ya.I. Zasiadko, P.Ya. Zasiadko, T.S. Shchudlo

Èlektron. model. 2017, 39(3):89-104
https://doi.org/10.15407/emodel.39.03.089

ABSTRACT

A geometric model of the work area of the experimental unit for the combustion and gasification of pulverized coal has been created in the Gambit software. The corrections of the registration of the platinum-platinum-rhodium (PP) thermocouples have been calculated with the help of the integral model of the unit high temperature flow gasification with capacity up to 100 kg per hour of coal in a vertical design (VGP-100V) in experimental conditions of combustion of natural gas. Based on the ANSYS CFX software, a three-dimensional model of processes in the burner with thermochemical preparation of low-reaction coal of TPP-210A boiler of Tripolskaya TPP has been developed. The initial data are presented for the design of a 65 MW burner for the TPP-210A boiler for the implementation of the coal and biomass co-firing technology at TPPs of Ukraine.

KEYWORDS

co-firing, biomass, coal, anthracite.

REFERENCES

1. Dunaievska, N., Zasiadko, Ya., Shupik, I. and Shchudlo, T. (2007), “Overview of technology of biomass and coal cofiring in the coal-dust furnaces”, Energotekhnologii i resursosberezheniye, no. 3, pp. 3-8.
2. Biomass combustion and cofiring, available at: http://www.ieabcc.nl (accessed Mar. 14, 2017).
3. Dayton, D. (2002), A summary of NOx emissions reduction from biomass cofiring, Golden: National Renewable Energy Laboratory, pp.1-10, available at: http://www.nrel.gov/docs/fy02osti/32260.pdf (accessed March 14, 2017).
4. Sloss, L. (2010), “Emissions from cofiring coal, biomass and sewage sludge”, IEA Clean Coal Centre, pp.1-46, available at: https://www.usea.org/sites/default/files/102010_Emissions%20from%20cofiring%20coal%2C%20biomass%20and%20sewage%20sludge_ccc175.pdf (accessed Mar. 14, 2017).
5. Fernando, R. (2005), “Fuels for biomass cofiring”, IEA Clean Coal Centre, p. 37.
6. Zasiadko, Ya.I., Myroshnyk, M.M. and Zasiadko, P.Ya. (2012), “Thermogravimetric research of sugar beet pulp”, Tsukor Ukrainy, no. 2 (74), pp. 29-32.
7. Matveichuk, A. (2012), “On technology of cofiring of brown coal and straw in furnaces with immobile layer”, Vidnovliuvana energetika, no. 3 (30), pp. 79-83.
8. Dunaievska, N., Chernyavskiy, M. and Shchudlo, T. (2016), “Co-combustion of solid biomass
in pulverized anthracite-coal firing boilers”, Ukrainian Food Journal, Vol. 5, pp. 748-764.
9. Grigoryev, V.A. and Zorin, V.M. (1988), Teoreticheskie osnovy teplotekhniki [Theoretical principles of heat engineering], Energoatomizdat, Moscow, USSR.

Full text: PDF (in Russian)