Mathematical model of the horizontal steam generator of a WSG-1000 type of the power unit of nuclear power station with water-cooled and water-moderated energy reactor (WCER)

Представлены описание конструкции, принципиальная тепловая схема, особенности функционирования и математическая модель горизонтального парогенератора типа ПГВ-1000, являющегося частью основного оборудования двухконтурных АЭС с ВВЭР-1000. Разработанная модель парогенератора реализована в виде компьютерной программы расчета и может рассматриваться как компонент автоматизированных программных комплексов в составе АСУ ТП (автоматизированные системы управления технологическими процессами) энергоблоков АЭС с ВВЭР-1000. Рассмотрена структура блоков программы расчета параметров технологических процессов в парогенераторах типа ПГВ-1000.The structure, schematic thermal diagram, technological process parameters, thermal, hydraulic and structural characteristics, function peculiarities and the mathematical model of the horizontal steam generator of a WSG-1000 (water steam generator) type, which is a part of the main equipment of double–circuit nuclear power stations with WCER-1000 have been described. A consideration has been given to different contemporary structure modifications of the horizontal steam generator of WSG-1000; WSG-1000M, WSG-1000M (V) and WSG-1000 MK types. Their differences, advantages and drawbacks have been analyzed. Based on the equations of thermal balance, heat transfer, thermodynamic and thermophysical properties of the heat carrier and working medium, tube wall material heat conduction, the heat transfer and heat release coefficients of heat carriers, hydraulic and structural characteristics of the steam generator we developed the steam generator model, which is realized in the form of computer program and it can be considered as a component of computer-aided bundled software included into the automated process control system of the power units of NPS with WCER-1000. The structure of program units used for the computation of the parameters of technological processes in steam generators of a WSG-1000 type has been considered