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Science and Technology of Nuclear Installations
Volume 2009 (2009), Article ID 579430, 12 pages
Project Report

The SPES3 Experimental Facility Design for the IRIS Reactor Simulation

1Westinghouse, Science & Technology Center, 1344 Beulah Road, Pittsburgh, PA 15235, USA
2Nuclear & Radiological Engineering/Medical Physics Programs, George W. Woodruff School, Georgia Institute of Technology, Atlanta, GA 30332, USA
3SIET, S.p.A. Via Nino Bixio 27, 29100 Piacenza, Italy
4Department of Energy, CeSNEF-Nuclear Engineering Division, Politecnico di Milano, Via La Masa 34, 20156 Milano, Italy
5ENEA, Via Martiri di Monte Sole 4, 40129 Bologna, Italy
6Mangiarotti Nuclear, Viale Sarca 336, 20126 Milano, Italy
7FER, University of Zagreb, Unska 2, 10000 Zagreb, Croatia
8ORNL, P. O. Box 2008, Oak Ridge, TN 37831, USA
9Ansaldo Nucleare, Corso F.M. Perrone, 25, 16161 Genova, Italy

Received 31 October 2008; Accepted 25 May 2009

Academic Editor: Yanhua Yang

Copyright © 2009 Mario Carelli et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


IRIS is an advanced integral pressurized water reactor, developed by an international consortium led by Westinghouse. The licensing process requires the execution of integral and separate effect tests on a properly scaled reactor simulator for reactor concept, safety system verification, and code assessment. Within the framework of an Italian R&D program on Nuclear Fission, managed by ENEA and supported by the Ministry of Economic Development, the SPES3 facility is under design and will be built and operated at SIET laboratories. SPES3 simulates the primary, secondary, and containment systems of IRIS with 1 : 100 volume scale, full elevation, and prototypical thermal-hydraulic conditions. The simulation of the facility with the RELAP5 code and the execution of the tests will provide a reliable tool for data extrapolation and safety analyses of the final IRIS design. This paper summarises the main design steps of the SPES3 integral test facility, underlying choices and phases that lead to the final design.