The document constituted the key internal report dealing with the design and the construction of the PIPER-ONE loop installed at the Scalbatraio Laboratory managed by DCMN (Dipartimento di Costruzioni Meccaniche e Nucleari – previously IIN, Istituto di Impianti Nucleari) of University of Pisa. PIPER-ONE was built in Italy as a consequence of the Three-Mile accident (1979): it aimed at simulating the Boiling Water Reactor (BWR) performance following Small Break Loss of Coolant Accidents (SBLOCA). The natural circulation which occurs between down-comer and core into the vessel constitutes the reference thermal-hydraulic phenomenon which needed to be simulated. The concerned document describes the main design features of the experimental facility and constituted the basis for the construction. The PIPER-ONE loop was used for an International Standard Problem (ISP) by Organization for Economic Cooperation and Development (OECD) / Nuclear Energy Agency (NEA) / Committee on the Safety of Nuclear Installations (CSNI) during the middle of 80’s. The design and the operation of the loop constituted a milestone achievement in the area of nuclear thermal-hydraulics with main reference to the scaling. The present document was prepared on the occasion of the OECD/NEA workshop organized by UNIPI in Marina di Grosseto (I) in relation to the preparation of the International Standard Problem (ISP) 21. The document, dealing with the description of thermal-hydraulic features of the PIPER-ONE loop, suitable for creating a code input deck, was distributed to the international participants of the ISP.
PIPER-ONE research: facility description for OECD-CSNI International Standard Problem N. 21 (ISP 21)
D'Auria F.
Co-primo
Writing – Review & Editing
;Di Marco Paolo;
1986-01-01
Abstract
The document constituted the key internal report dealing with the design and the construction of the PIPER-ONE loop installed at the Scalbatraio Laboratory managed by DCMN (Dipartimento di Costruzioni Meccaniche e Nucleari – previously IIN, Istituto di Impianti Nucleari) of University of Pisa. PIPER-ONE was built in Italy as a consequence of the Three-Mile accident (1979): it aimed at simulating the Boiling Water Reactor (BWR) performance following Small Break Loss of Coolant Accidents (SBLOCA). The natural circulation which occurs between down-comer and core into the vessel constitutes the reference thermal-hydraulic phenomenon which needed to be simulated. The concerned document describes the main design features of the experimental facility and constituted the basis for the construction. The PIPER-ONE loop was used for an International Standard Problem (ISP) by Organization for Economic Cooperation and Development (OECD) / Nuclear Energy Agency (NEA) / Committee on the Safety of Nuclear Installations (CSNI) during the middle of 80’s. The design and the operation of the loop constituted a milestone achievement in the area of nuclear thermal-hydraulics with main reference to the scaling. The present document was prepared on the occasion of the OECD/NEA workshop organized by UNIPI in Marina di Grosseto (I) in relation to the preparation of the International Standard Problem (ISP) 21. The document, dealing with the description of thermal-hydraulic features of the PIPER-ONE loop, suitable for creating a code input deck, was distributed to the international participants of the ISP.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
