title: Ð¡Ð¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ¸ ÑÐ°ÑÑÑÑÐ° ÑÐµÐ¿Ð»Ð¾Ð²Ð¾Ð¹ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐ¸ ÐÐÐ­Ð -1000 Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ Ð²Ð¾ÑÑÑÐ°Ð½Ð¾Ð²Ð»ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¿Ð¾Ð»Ñ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑ Ð½Ð° Ð²ÑÑ Ð¾Ð´Ðµ Ð¸Ð· Ð¢ÐÐ¡Ð-12PLUS
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Improving the methodology for calculating the thermal power of WWER-1000 using the reconstructed temperature field at the outlet of TVSA-12PLUS
Creators: name: ÐÐ¸ÐºÐ¾Ð»Ð°ÐµÐ², ÐÑÑÑÐ¼
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2024
Subjects: Ð¯Ð´ÐµÑÐ½ÑÐµ ÑÐµÐ°ÐºÑÐ¾ÑÑ Ð²Ð¾Ð´Ð¾-Ð²Ð¾Ð´ÑÐ½ÑÐµ
ÑÐµÐ¿Ð»Ð¾Ð²Ð°Ñ Ð¼Ð¾ÑÐ½Ð¾ÑÑÑ
ÑÐµÑÐ¼Ð¾ÐºÐ¾Ð½ÑÑÐ¾Ð»Ñ
thermal power
thermal control

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description: The work is devoted to the development of an improved method for determining the thermal power of a WWER-1000 reactor plant based on the results of reconstructing the field of outlet temperatures of the coolant from TVSA-12PLUS. In the course of the work, methods for determining the main parameters of WWER reactor plants, primarily thermal power, were studied. An algorithm has been developed for restoring the field of output temperatures from a fuel assembly with a modernized head in the case of considering and without considering the unevenness of energy release in the fuel assembly during stationary operation, the activation of accelerated warning protection and in the process of reaching rated power. The coolant temperatures at the inlet to the fuel assembly were also calculated when the main circulation pump No. 1 was turned off. The thermal power of the installation was calculated for all reconstructed temperature fields. A comparison was made with the data of capacities determined by the ICMS. A significant part of the material was obtained at the Kalinin NPP. The data was taken from the ICMS archive, and from calculations in BIPR-7A and PERMAK-A. Based on the results of the calculation analysis, we can conclude that considering the location of the thermal control tube in a fuel assembly with a modernized head increases the accuracy of determining the output temperature and, therefore, thermal power. In the future, the algorithm for calculating power using the presented method can be implemented in the control system to increase the reliability of determining the main controlled parameters. The results of the work are important for subsequent research to adjust the weights of the corresponding calculation methods used in calculating the weighted average thermal power of the reactor plant WWER-1000 at the power units of the second stage of the Kalinin NPP.