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Water-Chemistry and Its Utility Systems in CCP Power Units (Review)

  • Water Treatment and Water-Chemistry
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Abstract

Damageability of heat transfer surfaces of waste heat recovery steam generators (HRSG) of combined- cycle plants (CCP) can be reduced due to an increase in the quality of make-up and feed water, the use of phosphate-alkaline or amino compound water chemistry (WC), and improved chemical quality control of the heat carrier and make-up water preparation techniques. Temporary quality standards for the heat medium developed by the All-Russia Thermal Engineering institute (VTI) for CCP power units are presented in comparison with the IAPWS standards; preferences for the choice of a WC type for some power units commissioned in Russia in the first decade of this century are shown; and operational data on the quality of feed, boiler water, and steam for two large CCP-450 and CCP-425 power units are given. The state and prospects for the development of chemical-technological monitoring systems and CCP water treatment plants are noted. Estimability of some CCP diagnostic parameters by measuring specific electric conductivity and pH is shown. An extensive bibliography on this topic is given.

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  1. Ivanovo State Power University, Ivanovo, 153003, Russia

    B. M. Larin

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Original Russian Text © B.M. Larin, 2018, published in Teploenergetika.

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Larin, B.M. Water-Chemistry and Its Utility Systems in CCP Power Units (Review). Therm. Eng. 65, 39–44 (2018). https://doi.org/10.1134/S0040601517120059

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  • DOI: https://doi.org/10.1134/S0040601517120059

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