Hydra System Commissioning Study

Paul Scherrer Institute – PANDA Test Facility Studies

• Analysis of the composition and characteristics of vent streams from a Passive Decay Heat Removal safety system for Advanced Light Water Reactor Systems
• The development of Passive Protection Systems eliminates sources of failure present for active systems e.g. Human error or power failure
• The Hydra was commissioned to investigate the function and reliability of passive condensers under severe accident conditions, in presence of “non-condensable” gases e.g. N², which can markedly affect the efficiency of the PPS

PANDA during construction – Passive condensers are at the top of the large cylindrical vessels

PSI Hydra Configuration

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