by GeorgeWebManHopperE | Mar 27, 2021 | Power Generation and Utilities
A Motor Operated Valve was replaced with a heavier valve, requiring reanalysis of the Pressurizer Valve Piping. HEA performed a Class 1 piping analysis considering dynamic fluid transient loading and thermal stratification effects.
by GeorgeWebManHopperE | Mar 27, 2021 | Power Generation and Utilities
The actual number of loss of letdown thermal transients was found to exceed the design number of transients for a charging nozzle. HEA performed a Class I evaluation of the charging nozzle using thermal transient heat flow and stress analyses.
by GeorgeWebManHopperE | Mar 27, 2021 | Power Generation and Utilities
HEA determined the seismic displacement of a suspended crane hook load as part of an ISFSI project. Impact of a hook load into the structure was a primary concern. HEA used a computer model to accurately represent the crane, surrounding superstructure, and ground...
by GeorgeWebManHopperE | Mar 27, 2021 | Power Generation and Utilities
HEA evaluated the structural integrity of the Dry Shielded Canister (DSC) and internals when subjected to an accident-scenario side-drop. Non-linear effects such as material plasticity, contact, and time-history loading were considered.
by GeorgeWebManHopperE | Mar 27, 2021 | Power Generation and Utilities
Crack indications were found at thermal joints of a containment polar crane rail. An ASME Section XI Code based fracture mechanics life evaluation for various crack orientations was performed using stresses found by finite element analysis.
