Published 2001 | Version v1
Book Metadata-only

Improvement of operating reliability and service life of WWER-1000 RCPS AE

Creators

  • 1. GNTs RF NIIAR, Dimitrovgrad (Russian Federation)

Description

The ways of providing high operating life for control elements of WWER-1000 reactors are considered, including the following: improvement of absorber member design; application of radiation-resistant absorber materials; application of radiation-resistant cladding materials. It is suggested that combined and shortened absorber members be used, as well as a shielding clad and an additional gas collector be incorporated in the absorber element design. The compositions of Dy2O3 · HfO2 + B4C, Dy2O3 · HfO2 and metallic hafnium are proposed as neutron absorbers, and steel 06Kh18N10T and chromium-nickel alloy EhP-630U as absorber element cladding materials. It is noted that to make good use of the potentialities the following procedures are required: to create inspection standards for testing current state of each individual control assembly; to develop calculation codes for control element state estimation depending on operating parameters; to make regular materials studies for spent control elements

Abstract (Russian)

Рассмотрены пути обеспечения высоких ресурсных характеристик органов регулирования реакторов ВВЭР-1000, в числе которых: усовершенствование конструкции пэлов; применение радиационностойких поглощающих материалов; применение радиационностойкого материала оболочек. Предлагается использование комбинированных и укороченных пэлов, а также включение в конструкцию пэла экранирующей оболочки и дополнительного газосборника. В качестве поглотителя нейтронов предлагается использовать композиции Dy2O3 · HfO2 + B4C, Dy2O3 · HfO2 и металлический гафний, для оболочек пэлов - сталь 06Х18Н10Т и хромоникелевый сплав ЭП-630У. Отмечено, что для эффективного использования возможностей, обеспеченных конструкцией и материалами, необходимо следующее: создание стендов инспекции для проверки текущего состояния каждой сборки; создание расчетных кодов для оценки состояния пэлов в зависимости от параметров эксплуатации; проведение регулярных материаловедческих исследований отработавших пэлов
Part of:
The collection of reports of 6. Russian conference on reactor material science. Vol. 2. P. 2. Fuel assemblies, fuel elements, absorber members, zirconium materials for nuclear reactors

Additional details

Additional titles

Original title (Russian)
Повышение надежности эксплуатации и ресурсных характеристик PS SUZ реакторов VVEhR-1000
Augmented title (English)
RCPS AE - absorber elements of control and protection system in WWER-1000 reactors

Publishing Information

Publisher
GNTs RF NIIAR
Imprint Place
Dimitrovgrad (Russian Federation)
ISBN
5-85165-651-4
Imprint Title
Collection of reports of 6. Russian conference on reactor material science. Vol. 2. P. 2. Fuel assemblies, fuel elements, absorber members, zirconium materials for nuclear reactors
Imprint Pagination
355 p.
Journal Page Range
p. 304-313

Conference

Title
6. Russian conference on reactor material science
Original Conference Title
Shestaya Rossijskaya konferentsiya po reaktornomu materialovedeniyu
Dates
11-15 Sep 2000
Place
Dimitrovgrad (Russian Federation)

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
33057293
Subject category
S22: GENERAL STUDIES OF NUCLEAR REACTORS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BORON CARBIDES; BURNUP; CONTROL ELEMENTS; DYSPROSIUM OXIDES; HAFNIUM; HAFNIUM OXIDES; INSPECTION; NEUTRON ABSORBERS; REACTOR CONTROL SYSTEMS; SERVICE LIFE; STEEL-CR18NI10TI; TEST FACILITIES; VALIDATION; WWER-5 REACTOR
Descriptors DEC
ALLOYS; AUSTENITIC STEELS; BORON COMPOUNDS; CARBIDES; CARBON COMPOUNDS; CHALCOGENIDES; CHROMIUM ALLOYS; CHROMIUM-NICKEL STEELS; CONTROL SYSTEMS; CORROSION RESISTANT ALLOYS; DYSPROSIUM COMPOUNDS; ELEMENTS; ENRICHED URANIUM REACTORS; HAFNIUM COMPOUNDS; HEAT RESISTANT MATERIALS; HEAT RESISTING ALLOYS; HIGH ALLOY STEELS; IRON ALLOYS; IRON BASE ALLOYS; LIFETIME; MATERIALS; METALS; NICKEL ALLOYS; OXIDES; OXYGEN COMPOUNDS; POWER REACTORS; PWR TYPE REACTORS; RARE EARTH COMPOUNDS; REACTOR COMPONENTS; REACTORS; REFRACTORY METAL COMPOUNDS; REFRACTORY METALS; STAINLESS STEELS; STEELS; TESTING; THERMAL REACTORS; TITANIUM ADDITIONS; TITANIUM ALLOYS; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; WATER COOLED REACTORS; WATER MODERATED REACTORS; WWER TYPE REACTORS

Optional Information

Notes
6 refs. Imprint:Sbornik dokladov Shestoj Rossijskoj konferentsii po reaktornomu materialovedeniyu. Tom 2. Chast' 2. TVS, tvehly, pehly, tsirkonievye materialy dlya yadernykh reaktorov