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Secure a Jammed Fuel Assembly – Emergent Solution

One single supplier providing in-house skilled and experienced personnel to mobilize for an emergent event at any time

Secure a Jammed Fuel Assembly<br>

The Challenge

Jammed fuel assemblies are often discovered when utilities lift the upper internals. As a result, the assemblies have potential to fall and cause a major safety-related issue.

The Solution

AREVA has developed a solution to safely and rapidly secure and remove the fuel assembly (qualified for 900MWe, 1300 MWe, and 1450 MWe plants).

Technical Features

AREVA has developed a solution to safely and rapidly secure and remove the fuel assembly (qualified for 900MWe, 1300 MWe, and 1450 MWe plants).

  • AREVA fuel and field operations experts perform preliminary analysis of the situation based on televisual inspection data to:
    — Determine the integrity of the assembly
    — Define the conditions of the operation and the specific scenario
  • Before site activities, training is performed on a representative mockup specific to each situation to ensure that personnel are prepared for specific environmental conditions
  • Full set of tools dedicated to plant operation
  • The assembly is secured prior to contact between the equipment used and the fuel assembly to eliminate risk of falling
  • Capacity to secure one or more assemblies

Features & Benefits

Fast & Safe

  • Experienced, dedicated team (fuel experts, engineers, and skilled operators)
  • Tools designed to ensure reliability and avoid any risk of the assembly falling from any position (patented scenario)
  • 4 successful operations performed in France

Your Benefits at a Glance

  • Safety: process and tools ensure reliable and quick securing of the assembly
  • Quick response: one single supplier providing in-house skilled and experienced people mobilized for an emergency at any time
  • AREVA’s combined expertise in fuel and services

Highlights of the AREVA Repair Process

• Thermal Sleeve Removal (If Applicable)

• Roll Nozzle in Repair Region

• Machine Weld Prep & PT Weld Area

• Perform Ambient Temperature Temper Bead Structural Weld

• Prepare Welded Surface For NDE

• Perform Post-Repair UT & PT

• Remediate Rolled and Repaired Areas

• Install Replacement Thermal Sleeve (If Required)

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Contact Us

Lisa Hawkins
Business Development Manager, CR&R
Tel: 434.832.2858