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Prospects for the development of coal-steam plants in Russia

  • Steam Boilers, Power Fuel, Burners, and Boiler Auxiliary Equipment
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Abstract

Evaluation of the technical state of the modern coal-fired power plants and quality of coal consumed by Russian thermal power plants (TPP) is provided. Measures aimed at improving the economic and environmental performance of operating 150–800 MW coal power units are considered. Ways of efficient use of technical methods of NO x control and electrostatic precipitators’ upgrade for improving the efficiency of ash trapping are summarized. Examples of turbine and boiler equipment efficiency upgrading through its deep modernization are presented. The necessity of the development and introduction of new technologies in the coal-fired power industry is shown. Basic technical requirements for a 660–800 MW power unit with the steam conditions of 28 MPa, 600/600°C are listed. Design solutions taking into account features of Russian coal combustion are considered. A field of application of circulating fluidized bed (CFB) boilers and their effectiveness are indicated. The results of development of a new generation coal-fired TPP, including a steam turbine with an increased efficiency of the compartments and disengaging clutch, an elevated steam conditions boiler, and a highly efficient NO x /SO2 and ash particles emission control system are provided. In this case, the resulting ash and slag are not to be sent to the ash dumps and are to be used to a maximum advantage. Technical solutions to improve the efficiency of coal gasification combined cycle plants (CCP) are considered. A trial plant based on a 16 MW gas turbine plant (GTP) and an air-blown gasifier is designed as a prototype of a high-power CCP. The necessity of a state-supported technical reequipment and development program of operating coal-fired power units, as well as putting into production of new generation coal-fired power plants, is noted.

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  1. All-Russia Thermal Engineering Institute (VTI), Moscow, 115280, Russia

    A. G. Tumanovskii

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Correspondence to A. G. Tumanovskii.

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Original Russian Text © A.G. Tumanovskii, 2017, published in Teploenergetika.

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Tumanovskii, A.G. Prospects for the development of coal-steam plants in Russia. Therm. Eng. 64, 399–407 (2017). https://doi.org/10.1134/S0040601517060088

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  • DOI: https://doi.org/10.1134/S0040601517060088

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