CJSC Armenian Scientific Research Institute for NPP Operation

Armenia

CJSC Armenian Scientific Research Institute for NPP Operation

Armenia
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Petrosyan V.,CJSC Armenian Scientific Research Institute for NPP Operation | Hovakimyan T.,CJSC Armenian Scientific Research Institute for NPP Operation | Vardanyan M.,CJSC Armenian Scientific Research Institute for NPP Operation | Khachatryan A.,CJSC Armenian Scientific Research Institute for NPP Operation | Minasyan K.,CJSC Armenian Scientific Research Institute for NPP Operation
NATO Science for Peace and Security Series B: Physics and Biophysics | Year: 2010

We propose an applied-model of Through-Wall Crack (TWC) for VVER-type units primary vessels. The model allows to simulate the main morphological parameters of real TWC, i.e. length, area of inlet and outlet openings, channel depth and small and large size unevenness of the crack surface. The model can be used for developing and improving the coolant-leak detectors for the primary circuit vessels of VVER-units. Also, it can be used for research of the coolant two-phase leakage phenomenon through narrow cracks/channels and thermo-physical processes in heat-insulation layer of the Main Coolant Piping (MCP) during the leak. © 2010 Springer Science+Business Media B.V.

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