THERMAL SCIENCE

International Scientific Journal

Sergey A. Shevyrev

,

Aleksandr Bogomolov

,

Ksenia Yurievna Vershinina

,

Timur R. Valiullin

,

Geniy Vladimirovich Kuznetsov

,

Sergey Lyrshchikov

PECULIARITIES OF USING SLURRY FUELS IN THERMAL POWER PLANTS

ABSTRACT
The study regards the issues of increasing the thermodynamic efficiency of a typical condensing thermal power plant using coal-water and organic coal-water fuels as the main source. The attention is paid to the use of the phase transition heat of the water vapor of the flue gas. We have shown that it is possible to increase the power plant efficiency by about 3.7% (gross) relative to the base value (in the case of using pulverized coal). We propose to use the flue-gas desulfurization technology for creating fuel slurries in which a liquid incombustible base will be replaced, for example, with aqueous solutions of Ca(OH)2. This will create a closed water cycle, improve the efficiency of Sox flue gas purification and improve the performance of scrubbers.
KEYWORDS
power plant, efficiency, coal-water fuel, organic coal-water fuel, gas cleaning, condensation
PAPER SUBMITTED: 2018-07-24
PAPER REVISED: 2019-01-17
PAPER ACCEPTED: 2019-01-23
PUBLISHED ONLINE: 2019-02-17
DOI REFERENCE: https://doi.org/10.2298/TSCI180724023S
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2019, VOLUME 23, ISSUE Issue 3, PAGES [2047 - 2057]
REFERENCES
  1. Lior, N. Energy resources and use: The Present Situation and Possible Paths to the Future, Energy, 33 (2008), pp. 842-857
  2. Kontorovich, A.E., et al., Long-term and medium-term scenarios and factors in world energy perspectives for the 21st century, Russian Geology and Geophysics, 55 (2014), 5-6, pp. 534-543
  3. Liu, M., et al., The origin and prospect of billion-ton coal production capacity in China, Resources, Conservation and Recycling, 125 (2017), pp. 70-85
  4. Kucukvar, M., et al., Exploring the material footprints of national electricity production scenarios until 2050: The case for Turkey and UK, Resources, Conservation and Recycling, 125 (2017), pp. 251-263
  5. Wang, S., et al., Utilization of Coal Fly Ash for the Production of Glass-ceramics With Unique Performances: A Brief Review, Journal of Materials Science and Technology, 30 (2014), 12, pp. 1208-1212
  6. Wang, C., et al., Thermodynamic analysis of a low-pressure economizer based waste heat recovery system for a coal-fired power plant, Energy, 65 (2014), pp. 80-90
  7. Nyashina, G., et al., Environmental Potential of Using Coal-Processing Waste as the Primary and Secondary Fuel for Energy Providers, Energies, 10 (2017), 3, pp. 1-11
  8. Dmitrienko, M.A., Strizhak, P.A., Coal-water slurries containing petrochemicals to solve problems of air pollution by coal thermal power stations and boiler plants: An introductory review, Science of the Total Environment, 613-614 (2018), pp. 1117-1129
  9. Glushkov, D.O., Strizhak, P.A., Ignition of composite liquid fuel droplets based on coal and oil processing waste by heated air flow, Journal of Cleaner Production, 165 (2017), pp. 1445-1461
  10. Maltsev, L.I., et al., Combustion of black coal in the form of coal-water slurry in low-capacity boilers, Applied Thermal Engineering, 61 (2014), 7, pp. 486-490
  11. Gil', A.V., et al., Numerical analysis of the burning of pulverized coal with different thermal properties in the furnace of a BKZ-420-140-2 boiler, Power Technology and Engineering, 45 (2011), 1, pp. 42-49
  12. Jianzhong, L., et al., Pilot-scale investigation on slurrying, combustion, and slagging characteristics of coal slurry fuel prepared using industrial waste liquid, Applied Energy, 115 (2014), pp. 309-319
  13. Fu, C., et al., Thermal efficiency of coal-fired power plants: From theoretical to practical assessments, Energy Conversion and Management, 105 (2015), pp. 530-544
  14. Petrescu, L., et al., Life Cycle Assessment for supercritical pulverized coal power plants with post-combustion carbon capture and storage, Journal of Cleaner Production, 157 (2017), pp. 10-21
  15. Kholshchev, V.V., Accelerated Operations for Starting and Shutting Down a Drum Boiler, Thermal Engineering, 55 (2008), 4, pp. 285-292
  16. Wu, X., et al., Comparative life cycle assessment and economic analysis of typical flue-gas cleaning processes of coal-fired power plants in China, Journal of Cleaner Production, 142 (2017), pp. 3236-3242
  17. Zhang, H., et al., More efforts, more benefits: Air pollutant control of coal-fired power plants in China, Energy, 80 (2015), pp. 1-9
  18. Wang, C., et al., Research on collaborative control of Hg, As, Pb and Cr by electrostatic-fabric-integrated precipitator and wet flue gas desulphurization in coal-fired power plants, Fuel, 210 (2017), pp. 527-534
  19. Rokni, E., et al., Curtailing the generation of sulfur dioxide and nitrogen oxide emissions by blending and oxy-combustion of coals, Fuel, 181 (2016), pp. 772-784
  20. Alekseenko, S.V., et al., Results of pilot-operating combustion of coal-water fuel in a low-capacity hot water boiler, Bulletin of the Tomsk Polytechnic University, Geo Assets Engineering, 328 (2017), 12, pp. 16-28
  21. Zhang, J., et al., Simultaneous removal of NO and SO2 from flue gas by ozone oxidation and NaOH absorption, Industrial & Engineering Chemistry Research, 53 (2014), 15, pp. 6450-6456.
  22. Shi, Y., et al., In situ regeneration of commercial NH3-SCR catalysts with high-temperature water vapor, Catalysis Communications, 116 (2018), pp. 57-61
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Peculiarities of using slurry fuels in thermal power plants

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence