Open AccessDETERMINATION OF THE DEPENDENCE OF THE NPP UNIT POWER ON THE STEAM TEMPERATURE AT THE OUTLET OF THE SUPERHEATER SEPARATOR FIRST STAGE WITH AN UNCERTAINTY OF INFORMATION
Author(s) -
О.V. Yefimov,
Т.V. Potanina
Publication year - 2022
Publication title -
problems of atomic science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.216
H-Index - 17
eISSN - 1562-6016
pISSN - 1682-9344
DOI - 10.46813/2022-137-169
Subject(s) - superheater , separator (oil production) , probabilistic logic , approximation error , observational error , statistics , boiler (water heating) , mathematics , engineering , thermodynamics , physics , waste management
The article discusses the application of the standard statistical approach and interval analysis procedures to the estimation of the parameters of the dependence of the power of an NPP power unit on the steam temperature at the outlet of the first stage of the superheater separator under conditions of measurements noise, unknown probabilistic characteristics of errors and with a short measurements sample. The influence of reducing the error in determining the power of the power unit on the choice of the experiment result processing method is investigated. The situation of measurement error limitation without reliable information about its distribution is considered. The correctness of the application of interval analysis numerical methods for processing experimental data under conditions of uncertainty and a significant decrease in the maximum value of the total error is shown. The data were approximated by the Levenberg-Marquardt minimization method when the relative error of the measurement results equaled 5%.