ICEM11 Final Program 9.7.11pm_ICEM07 Final Program ... - Events

Abstracts Session 40
A significant programme of work has been underway over the last two decades, to support the programmes strategic intent of
retrieving and treat all legacy wastes and remediate the structures of both the legacy plant and the new build construction plants
necessary to support decommissioning.
The paper will look at the challenges faced by the team as they ready the facility for retrievals and decommissioning and discuss
how these were managed or overcome through a coordinated programme of work.
This will include a review of the significant asset restoration programme which culminated recently in the commencement of
production liquor transfers…
6) EXPERIENCE OF APPLICATION OF NEW REMOTE CONTROLLED INSTRUMENTS FOR SCANNING OF
DISTRIBUTION OF RADIOACTIVE CONTAMINATION IN ROOMS WITH HIGH DOSE RATE (wP-59354)
Vyacheslav Stepanov, Alexey Danilovich, Oleg Ivanov, Victor Potapov, Sergey Smirnov,
Anatoly Volkovich, NRC Kurchatov Institute (Russia)
When carrying out the decommissioning of nuclear facilities is necessary to measure the distribution of radioactive contamination
in the rooms and the equipment at high levels of background radiation. In the decommissioning of the reactor in the MR
Research Center “Kurchatov Institute” for such problems is developed and applied a few special systems with remote control. For
a survey of high-level objects used mounted on the robot radiometric system [V.E. Stepanov, etc. Using collimated radiometer systems
mounted on the robot for inspection of storage Brokk CPS inside the reactor MR Research Center “Kurchatov Institute”//
Atomic Energy. 2010. v.109. no4. P. 194]. To determine the composition of pollutants and use a portable collimated spectrometric
system [V.E. Stepanov et. Al. Remotely controlled collimated detector to measure the distribution of radioactive contamination //
Atomic Energy. 2010. v.109. no2. S. 106]. To obtain a detailed distribution of contamination of used remote-controlled gamma camera
[Stepanov V. E., et al. Application of portable gamma camera for the control on extraction of the radioactive wastes from temporal
storage in territory of RRC Kurchatov Institute// ICEM05/DECOM05 Glasgow 2005, Abstract Book pp.97]. Described works
conducted under the Federal Program for Nuclear and Radiation Safety of Russia.
7) HUMAN AND ORGANISATIONAL FACTORS AS KEY LEVERS OF PERFORMANCE
IN D&D PROJECT MANAGEMENT (W/OP-59323)
Thierry Flament, Bertrand Willmann, Grégoire de Laval, Jean-Louis Lemarch, Alain Cordoba, AREVA (France)
In a number pf D&D projects, the type of installations to be dismantled and the variety of their equipments (glove-boxes,
tanks&) and the products present on site (plutonium, uranium) in the form of powder are making many operations manual ones.
Key phases in HR and organisation management:
• The first D&D experience, the learning curve ramp-up
• To begin any project, you usually try to benefit from benchmark of similar projects to be able to build up the first scenario,
by using the best practices. The first experimental team consisted of operators who already had experienced dismantling
at least once in the course of their career.This first dismantling operation is preferably to be conducted on an installation
relatively poorly contaminated. This was to implement the correct techniques thus reducing the consequences of a possible
unforeseen event.
The capitalisation on the return on experience
The success of this first dismantling site operation allowed us to implement a process of experience feedback to build the scenarios
and the operating procedures of the following sites. In particular, targeted safety-security stop points are positioned for validation
on the operations by people responsible for safety and security.
• HR training
• Implementation of new equipments (saws, stalls&) allows experimental…
8) DEVELOPMENT OF COMPUTER PROGRAM FOR ESTIMATING DECOMMISSIONING COST (wP-59037)
HakSoo Kim, JongKil Park, Nuclear Engineering & Technology Institute (Korea)
The programs for estimating the decommissioning cost have been developed for many different purposes and applications. The
estimation of decommissioning cost is required a large amount of data such as unit cost factors, plant area and its inventory, waste
treatment, etc. These make it difficult to use manual calculation or typical spreadsheet software such as Microsoft Excel. The cost
estimation for eventual decommissioning of nuclear power plants is a prerequisite for safe, timely and cost-effective decommissioning.
To estimate the decommissioning cost more accurately and systematically, KHNP, Korea Hydro and Nuclear Power Co.
Ltd, developed a decommissioning cost estimating computer program called “DeCAT-Pro”, which is Decommissioning Cost
Assessment Tool Professional. (Hereinafter called “DeCAT”) This program allows users to easily assess the decommissioning cost
with various decommissioning options. Also, this program provides detailed reporting for decommissioning funding requirements
as well as providing detail project schedules, cash-flow, staffing plan and levels, and waste volumes by waste classifications and
types. KHNP is planning to implement functions for estimating the plant inventory using 3-D technology and for classifying the
conditions of radwaste disposal and transportation automatically.
SESSION 41 — D&D TECHNOLOGIES - PART 2 OF 2 (3.13)
1) AN INNOVATIVE PROCESS FOR SEGMENTING OF GUIDE TUBES (wP-59029)
Patrick (PJ) Gobert, Pierre-Henri Ponchon, Stefan Fallström,
Joseph Boucau, Westinghouse Electric Company (Belgium/France/Sweden)
The purpose of this paper is to describe an innovative process for segmenting PWR Guide Tubes (GT’s) and the service (training
and execution) that can be performed successfully and safely.
Over time, some utilities are replacing control rod GTs and store them in temporary disposal facilities. Due to lack of space, it
is sometimes needed to cut and condition them in waste packages for final disposal and waste treatment.
Based on its more than 20 years of strong experience and lessons learned in the development of nuclear components segmentation
and packaging technology, Westinghouse has recently developed a complete solution for cutting and consolidating GTs.
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