Within the framework of its program on innovative safety systems, ENEA has in progress an R&D activity aimed at increasing the reliability of Decay Heat Removal (DHR) passive systems that implement in-pool heat exchangers. At present this activity concerns the PERSEO project aimed at the development of a system that enables the control of the removed power in the pool instead of the installation of mechanical valve on pressurized loops, thus reducing thermalmechanical constrains and thermal-hydraulic instability. PERSEO (in-Pool Energy Removal System for Emergency Operation), which is an evolution of the Thermal Valve concept studied by ENEA and CEA (Fr), will be tested at SET laboratories in Piacenza (Italy) by modifying the existing PANTHERS IC-PCC utilised in the past for testing a full scale module of the SBWR |in-pool heat exchanger. This paper is mainly conceived to compare some pre-tests calculations performed with RELAP and CATHARE of this system in order to confirm the validity of the proposed configuration and to better understand the limitations of the two different analytical models.

Analytical Assessment of an Enhanced Configuration of Thermal Valve System

Meloni, P.
2002-07-08

Abstract

Within the framework of its program on innovative safety systems, ENEA has in progress an R&D activity aimed at increasing the reliability of Decay Heat Removal (DHR) passive systems that implement in-pool heat exchangers. At present this activity concerns the PERSEO project aimed at the development of a system that enables the control of the removed power in the pool instead of the installation of mechanical valve on pressurized loops, thus reducing thermalmechanical constrains and thermal-hydraulic instability. PERSEO (in-Pool Energy Removal System for Emergency Operation), which is an evolution of the Thermal Valve concept studied by ENEA and CEA (Fr), will be tested at SET laboratories in Piacenza (Italy) by modifying the existing PANTHERS IC-PCC utilised in the past for testing a full scale module of the SBWR |in-pool heat exchanger. This paper is mainly conceived to compare some pre-tests calculations performed with RELAP and CATHARE of this system in order to confirm the validity of the proposed configuration and to better understand the limitations of the two different analytical models.
Analisi sistemi e di sicurezza
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.12079/4440
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