Open AccessEFFICIENCY OF STEAM GENERATORS AT NUCLEAR POWER PLANTS
Author(s) -
V. Kovalchuk,
I. Kozlov,
O. Dorozh,
A. Machkov
Publication year - 2021
Publication title -
trudy odesskogo politehničeskogo universiteta
Language(s) - English
Resource type - Journals
eISSN - 2223-3814
pISSN - 2076-2429
DOI - 10.15276/opu.2.64.2021.04
Subject(s) - boiler (water heating) , process engineering , reliability engineering , steam turbine , nuclear power plant , heat recovery steam generator , electricity generation , nuclear power , thermal power station , steam electric power station , process (computing) , engineering , combined cycle , turbine , power (physics) , computer science , waste management , mechanical engineering , ecology , physics , quantum mechanics , nuclear physics , biology , operating system
The possibility of a comprehensive assessment of steam generators efficiency at nuclear power plants with water-water reactors, based on the indicator of OEE (overall equipment effectiveness) is considered. It is proposed to consider efficiency as the probability of functioning from the standpoint of availability, performance and product quality.The aim of the work is to evaluate the possibility of using the OEE indicator to analyze the efficiency of NPP steam generators in complex conditions: reactor − steam generator − turbine. Achieving this goal will provide a comprehensive indicator of monitoring the efficiency of steam generating systems and have a tool for systematic monitoring of steam generators. To assess the organizational and environmental efficiency of the organizational structure, individual, group and integrated indicators are proposed, which reflect the share or decrease of the absolute indicator in the system compared to the baseline. The study is based on the analysis of long-term performance of units with steam generators PG-1000, which are comparable. It is shown that the main element of the steam generation system, which determines its efficiency, is the heat generating source. The contribution to the efficiency of all aspects of operation is estimated. It is shown that the efficiency index of OEE allows to characterize the efficiency of steam generators operation at nuclear power plants with water-water reactors, and can be used to monitor and control the process of their operation. In result of research, it is defined that steam generator efficiency increases in process of achievement of the maximum value of its productivity.