title: ÐÐ±Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÐµÐ¿Ð»Ð¾ÑÐµÑ Ð½Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð½Ð°Ð´ÐµÐ¶Ð½Ð¾ÑÑÐ¸ Ð°ÐºÑÐ¸Ð²Ð½Ð¾Ð¹ Ð·Ð¾Ð½Ñ ÑÐµÐ°ÐºÑÐ¾ÑÐ° Ð ÐÐ¢Ð-200 Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ ÑÐ¸ÑÐ»ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Substantiation of thermal reliability of RITM-200 reactor core by numerical modeling method
Creators: name: Ð¡Ð°Ð²ÑÐ»Ð¾Ð², Ð¡ÐµÑÐ³ÐµÐ¹
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: 2022
Subjects: ÐÐ¡ÐÐ
Ð ÐÐ¢Ð-200
ÑÐ´ÐµÑÐ½ÑÐ¹ ÑÐµÐ°ÐºÑÐ¾Ñ
ÑÐµÐ¿Ð»Ð¾Ð²ÑÐ´ÐµÐ»ÑÑÑÐ°Ñ ÑÐ±Ð¾ÑÐºÐ°
ÐºÑÐ¸Ð·Ð¸Ñ ÑÐµÐ¿Ð»Ð¾Ð¾Ð±Ð¼ÐµÐ½Ð° 1 ÑÐ¾Ð´Ð°
Ð·Ð¾Ð½Ð° ÑÑ ÑÐ´ÑÐµÐ½Ð½Ð¾Ð³Ð¾ ÑÐµÐ¿Ð»Ð¾Ð¾Ð±Ð¼ÐµÐ½Ð°
ÑÐ¸ÑÐ»ÐµÐ½Ð½Ð¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
SMR NPP
RITM-200
nuclear reactor
fuel assembly
departure from nucleate boiling
zone of degraded heat exchange
numerical modeling

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¾ ÑÐ°ÑÑÐµÑÐ½Ð¾Ðµ Ð¾Ð±Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÐµÐ¿Ð»Ð¾ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¾Ð¹Ð½Ð°Ð´ÐµÐ¶Ð½Ð¾ÑÑÐ¸ Ð°ÐºÑÐ¸Ð²Ð½Ð¾Ð¹ Ð·Ð¾Ð½Ñ ÑÐ´ÐµÑÐ½Ð¾Ð³Ð¾ ÑÐµÐ°ÐºÑÐ¾ÑÐ° Ð ÐÐ¢Ð-200. ÐÑÐ¿Ð¾Ð»Ð½ÐµÐ½ ÑÐ°ÑÑÐµÑÐºÑÐ¸ÑÐ¸ÑÐµÑÐºÐ¸Ñ ÑÐµÐ¿Ð»Ð¾Ð²ÑÑ Ð¿Ð¾ÑÐ¾ÐºÐ¾Ð² Ð¿Ð¾ ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´ÑÐµÐ¼ÑÐ¼ Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ°Ð¼ Ñ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸ÐµÐ¼Ð¿Ð¾Ð¿ÑÐ°Ð²ÐºÐ¸ Ð½Ð° Ð½ÐµÑÐ°Ð²Ð½Ð¾Ð¼ÐµÑÐ½Ð¾ÑÑÑ ÑÐµÐ¿Ð»Ð¾Ð²ÑÐ´ÐµÐ»ÐµÐ½Ð¸Ñ Ð² Ð°ÐºÑÐ¸Ð²Ð½Ð¾Ð¹ Ð·Ð¾Ð½Ðµ. Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð° Ð¸Ð²Ð°Ð»Ð¸Ð´Ð¸ÑÐ¾Ð²Ð°Ð½Ð° Ð¼Ð¾Ð´ÐµÐ»Ñ Ð´Ð»Ñ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ ÐºÑÐ¸Ð·Ð¸ÑÐ° ÑÐµÐ¿Ð»Ð¾Ð¾Ð±Ð¼ÐµÐ½Ð° Ð² ÑÐµÐ¿Ð»Ð¾Ð²ÑÐ´ÐµÐ»ÑÑÑÐµÐ¹ÑÐ±Ð¾ÑÐºÐµ Ð¿ÑÐ¸ Ð¿ÐµÑÐµÐ¼ÐµÐ½Ð½Ð¾Ð¼ Ð¿Ð¾ Ð²ÑÑÐ¾ÑÐµ ÑÐµÐ¿Ð»Ð¾Ð²Ð¾Ð¼ Ð¿Ð¾ÑÐ¾ÐºÐµ. Ð ÐµÐ°Ð»Ð¸Ð·Ð¾Ð²Ð°Ð½Ð¾ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸ÐµÐ¼ÐµÑÐ¾Ð´Ð¾Ð¼ Ð¸ÑÐµÑÐ°ÑÐ¸Ð¹ Ð¸ Ð·Ð°ÑÐ¸ÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½ ÐºÑÐ¸Ð·Ð¸Ñ Ð² Ð¼ÐµÐ¶ÑÐ²ÑÐ»ÑÐ½Ð¾Ð¼ Ð¿ÑÐ¾ÑÑÑÐ°Ð½ÑÑÐ²Ðµ. ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¾ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ðµ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¾Ð² ÑÐ°ÑÑÐµÑÐ° Ð¿Ð¾ Ð¸Ð½Ð¶ÐµÐ½ÐµÑÐ½ÑÐ¼ Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ°Ð¼ Ð¸ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¾Ð² ÑÐ¸ÑÐ»ÐµÐ½Ð½Ð¾Ð³Ð¾Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ. Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ ÑÐ°Ð±Ð¾ÑÑ ÑÐ´ÐµÐ»Ð°Ð½Ñ Ð²ÑÐ²Ð¾Ð´Ñ Ð¾ ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²Ð¸Ð¸ Ð°ÐºÑÐ¸Ð²Ð½Ð¾Ð¹Ð·Ð¾Ð½Ñ ÑÐµÐ°ÐºÑÐ¾ÑÐ½Ð¾Ð¹ ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐ¸ Ð ÐÐ¢Ð-200 ÐºÑÐ¸ÑÐµÑÐ¸ÑÐ¼ ÑÐµÐ¿Ð»Ð¾ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð½Ð°Ð´ÐµÐ¶Ð½Ð¾ÑÑÐ¸Ð¿Ð¾ Ð·Ð°Ð¿Ð°ÑÐ°Ð¼ Ð´Ð¾ ÐºÑÐ¸Ð·Ð¸ÑÐ°, Ð¼Ð°ÐºÑÐ¸Ð¼Ð°Ð»ÑÐ½Ð¾Ð¹ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐµ Ð¾Ð±Ð¾Ð»Ð¾ÑÐºÐ¸ Ð¸ Ð¼Ð°ÑÑÐ¾Ð²Ð¾Ð¼ÑÐ¿Ð°ÑÐ¾ÑÐ¾Ð´ÐµÑÐ¶Ð°Ð½Ð¸Ñ Ð² ÑÐµÐ¶Ð¸Ð¼Ðµ Ð½Ð¾ÑÐ¼Ð°Ð»ÑÐ½Ð¾Ð¹ ÑÐºÑÐ¿Ð»ÑÐ°ÑÐ°ÑÐ¸Ð¸, Ð° ÑÐ°ÐºÐ¶Ðµ Ð¾ Ð´Ð¾ÑÑÐ¾Ð²ÐµÑÐ½Ð¾ÑÑÐ¸Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ¸ÑÐ»ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð´Ð»Ñ ÑÐ°ÑÑÐµÑÐ° Ð¸ Ð¾Ð±Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ñ Ð±ÐµÐ·Ð¾Ð¿Ð°ÑÐ½Ð¾ÑÑÐ¸ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸Ðº Ð°ÐºÑÐ¸Ð²Ð½Ð¾Ð¹ Ð·Ð¾Ð½Ñ ÑÐµÐ°ÐºÑÐ¾ÑÐ°. ÐÑÐ´Ð²Ð¸Ð½ÑÑÑ Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ð¸Ñ Ð¿Ð¾ Ð¼Ð¾Ð´Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¸ÑÐ°ÑÑÐµÑÐ½Ð¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð´Ð»Ñ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ñ ÑÐ¾ÑÐ½Ð¾ÑÑÐ¸ ÑÐ°ÑÑÐµÑÐ°.
description: In this work, a computational substantiation of the thermal engineering reliabilityof the core of the RITM-200 nuclear reactor was carried out. The calculation of criticalheat fluxes is carried out according to the recommended methods with the use of acorrection for the non-uniformity of heat release in the core. A model has been developedand validated for determining the crisis of heat transfer in a fuel assembly with a heatflux variable in height. Modeling by the iteration method was implemented and a crisisin the inter-fuel space was fixed. Comparison of the results of calculation by engineeringmethods and the results of numerical simulation is carried out. As a result of the work,conclusions were drawn about the compliance of the core of the RITM-200 reactorfacility with the criteria for thermal reliability in terms of reserves before the crisis, themaximum temperature of the shell and the mass vapor content in the normal operationmode, as well as the reliability of using numerical simulation to calculate and substanatethe safety of the characteristics of the reactor core. Proposals have been put forward tomodify the calculation model to improve the accuracy of the calculation.