VTT Centre for Nuclear Safety. Safir 2014 Final Seminar Hanasaari, March 19-20, 2015 Wade Karlsen

Transcription

1 VTT Centre for Nuclear Safety Safir 2014 Final Seminar Hanasaari, March 19-20, 2015 Wade Karlsen

2 Reactor materials testing and research VTT has been hosting the national hot laboratory infrastructure since it was first constructed and equipped in the 1970 s. Principle use has been for handling, testing and examining RPV materials for surveillance testing. Many critical plant life management issues for operating nuclear power plants are related to materials. Lifetime extension, power upgrading, and construction of new plants require investigating and solving problems related to components and structural integrity. Aging degradation of structures and components is an important aspect of power plant safety. Ageing management requires activities related to the utilization, inspection, surveillance, testing, examination, and degradation mitigation of materials.

3 Profile of new Centre for Nuclear Safety

4 ClickProfile to edit of Master new Centre title style for Nuclear Safety End User: VTT Technical Research Centre of Finland Owner: Senaatti-kiinteistöt (State real estate company) Engineering Click to editconsultant: Master texta-insinöörit styles Second level Architect: Arkkitehtitoimisto Sarc Oy Third level Engineering design team: ~100 people in Fourth level ~13 companies Fifth level Constructors: SRV Rakennus Oy Regulation & oversight: Espoo municipal government, building department, emergency services Radiation safety: STUK Funding subsidy of about 50 M (from special government tax on NPP production)

5 Profile of new Centre for Nuclear Safety 3,300 m 2 office wing includes a ground-level conference centre, and three floors of modern, flexible office space for 150 people. Office wing is intended to serve nuclear sector employees in: o computerized fluid dynamics o process modelling (APROS) o fusion plasma computations o severe accidents o core-computations o waste-management o safety assessments o staff working in the laboratory wing.

6 Profile of new Centre for Nuclear Safety 2,360 m2 laboratory wing includes a basement level and two floors of laboratory space. Basement is primarily intended for storage and handling of radioactive materials and waste. Laboratory space is arranged around the main high-bay, which houses the hot-cells proper, and includes: omechanical and microstructural characterisation of materials oradiochemistry ohr-icp-ms oiodine filter testing onuclear waste odosimetry ofailure analysis

7 Safety Click to features edit Master of the title CNS style Shielding from gamma irradiation in case of accidental source uncovering: Click to edit Master text styles Extra thick concrete walls both at the exterior and interior walls of basement Second level Basement Third level ceiling/main floor extra thick for adequate structural Fourth level integrity for the hot cells installed on the main floor. Fifth level Robust ventilation system of the laboratory wing: A-laboratory and B- and C-laboratory ventilators are redundant Ventilators connected to back-up diesel generators to ensure that the under-pressures in the laboratory are retained Electrical supply to the laboratory facilities is assured: Back-up diesels Centralized uninterrupted power supply (UPS) Design meets KATAKRI III security & safeguards requirements

8 Modern Click to laboratory edit Masterfeatures title styleof the CNS Special attention to low energy consumption solutions. Ventilation system has fully automated balancing on room-by- Click to edit Master text styles room basis, including presence monitors. Second level Fire suppression in laboratory by HiFog low-water system. Third level Several different Fourth level laboratory gases are supplied by pipe to the rooms Fifth level Source bottles are stored in a dedicated gas storage facility accessed directly from the gated courtyard for replacement delivery, which eliminates the need to wheel bottles into the radiological controlled area. Liquid nitrogen supply to radiological control area also via pipe. Centralized cooling is available for connection by individual pieces of equipment as needed

9 3-D model of facility: Office entrance

10 3-D model of facilty: Lab wing and transport yard

11 Laboratory wing facilities: C-laboratory

12 Laboratory wing facilities: A- and B-laboratories

13 Laboratory wing facilities: A-class basement

14 Place for a photo (no lines around photo) A-class hot cell facilities

15 A-class hot cell facilities 1st conceptual design 1st conceptual design and cost estimate (2013)

16 A-class hot cell facilities on main floor 2.1

17 A-class hot cell facilities in basement Autoclaves

18 A-class hot cell facilities co-location between the floors

19 Hot cell design principle for equipment access Most devices involved in materials testing are standard, so need hands-on access. Small hot cell staff, so full nuclearization of devices and training for remote use is untenable. Solution: glove-box inserts in the cells, whereby the equipment is integrated. Area where hot materials are required to be handled is relatively small. orequires much smaller manipulators. When sources are removed, personnel can access the equipment from rear of cell for maintenance, calibration, etc.

20 Kuvapaikka (ei kehyksiä kuviin) VTT CNS- Progress on the Ground

21 Progress on the ground Jan. 14 Apr. 14 Jun. 14 Aug. 14

22 Progress on the ground Sept. 14 Oct. 14 Nov. 14 Dec. 14

23 Progress on the ground Dec. 14 Jan. 15 Jan. 15 Mar.15

24 TECHNOLOGY FOR BUSINESS