Method for determining the volumetric power distribution of the core of a nuclear reactor

A three-dimensional power, nuclear reactor technology, applied in the direction of nuclear reactor monitoring, reactor, nuclear engineering solutions, etc.

Active Publication Date: 2014-02-19
FRAMATOME ANP
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, these methods necessitate the addition of additional instrumentation in the core

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for determining the volumetric power distribution of the core of a nuclear reactor
  • Method for determining the volumetric power distribution of the core of a nuclear reactor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] figure 1 A vessel 1 of a pressurized water reactor is schematically represented.

[0037] The vessel 1 comprises a core 6 equipped with fuel assemblies and is equipped with:

[0038] - A probe 3 (called a core exit thermocouple) for measuring the temperature of the refrigerant at the exit of the core constituent fuel assemblies.

[0039] - A cavity 4 for measuring the neutron flux outside the core (referred to as the extra-core cavity).

[0040] In-core instrumentation 8 consisting of in-core detectors 7 .

[0041] The core monitoring method according to the invention is implemented by programmed means 5 . This monitoring method is based on the calculation of at least one limiting parameter for the normal operation of the reactor core 6 from the current three-dimensional distribution of the power of the core 6, which is obtained from the current state of the pressurized water reactor (PWR) It is determined by measurements and three-dimensional neutron calculations p...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The method involves determining power density distribution of a core of a nuclear reactor from operating parameter values of the reactor by utilizing a neutron calculation code instantaneously resolving a diffusion equation and updating an isotope balance of the core during exhausting of fuel. A new power density distribution is determined by adjusting the power density distribution with measurements delivered by neutron flux measurement detectors and temperature measurement thermocouples, where the detectors are arranged outside a tank of the reactor. An independent claim is also included for a computer program comprising instruction to perform a method for determining power density distribution of a core of a nuclear reactor.

Description

technical field [0001] The invention relates to a method for determining a three-dimensional power distribution of a nuclear reactor core. Another object of the present invention is to monitor at least one limiting parameter of the normal operation of the nuclear reactor core. The present invention is particularly suitable for pressurized water nuclear reactors. Background technique [0002] In normal operation, the core of a nuclear reactor must comply with certain conditions that guarantee compliance with safety standards in the event of an accident. These conditions, referred to as Type 1 conditions, correspond to the initial states taken in security studies; therefore, exceeding these conditions in normal operation undermines security verification. Continuous verification of compliance with normal operating limits defines the function of "monitoring core pre-accident conditions". [0003] These conditions are formulated from parameters representing the specific activa...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): G21C17/10
CPCG21Y2004/30G21C17/10G21Y2002/304G21D3/001G21Y2002/301G21Y2002/204Y02E30/40Y02E30/00Y02E30/30
Inventor A·戈蒂埃D·迪雷
Owner FRAMATOME ANP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap