NDLI: Integrity of a Curved Divider Plate in Steam Generators of Pressurized Water Reactors Due to Dynamic Pressure Loading Considering Fluid Structure Interaction

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Schramm, Konrad
Copyright Year	2002
Abstract	A non-linear analysis procedure has been developed to investigate the plastic behavior of the divider (or partition) plate in Steam Generators (SG) of Pressurized Water Reactors (PWRs). The integrity of the divider plate in the primary channel head of a Steam Generator of a Pressurized Water Reactor has to be verified for a postulated loss of coolant accident (LOCA). Primary stresses due to differential pressure Δp have to be analyzed for faulted conditions. A static elastic-plastic finite element analysis for the divider plate was performed showing unrealistically high plastic deformation due to the high differential pressure loading resulting from the assumption of rigid walls in the fluid analysis. Therefore the LOCA is analyzed in a Fluid Structure Interaction Analysis (FSIA), representing the divider plate as a single degree of freedom system (SDOFS) acting like a piston. The present paper explains how the Δp across the plate was correlated with an equivalent displacement ve and how the mass of the plate is considered. In the FSIA a realistic dynamic response of the divider plate is considered now, with a significant reduction of differential pressure Δp. The analysis results proved the resistance of the divider plate with sufficient margin.
Sponsorship	Pressure Vessels and Piping Division
Starting Page	133
Ending Page	142
Page Count	10
File Format	PDF
ISBN	0791846571
DOI	10.1115/PVP2002-1471
Volume Number	Emerging Technologies in Fluids, Structures and Fluid Structure Interactions: Volume 1, Fluid Dynamics, Fluid Structure Interaction, and High Explosive Detonation
Conference Proceedings	ASME 2002 Pressure Vessels and Piping Conference
Language	English
Publisher Date	2002-08-05
Publisher Place	Vancouver, BC, Canada
Access Restriction	Subscribed
Subject Keyword	Dynamic response Degrees of freedom Deformation Boilers Fluid structure interaction Pressure Displacement Stress Pistons Fluids Coolants Finite element analysis Pressurized water reactors Accidents
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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