FEA Model
FEA Model of Feedwater Vessel

O’Donnell Consulting performed FEA and ASME Code Section VIII Division 2 calculations on feedwater heaters.
In modelling the heaters, the assumptions included:
• Linear elastic material behavior with small displacements
• The geometry, loading and boundary conditions consistently have one plane of symmetry down the axis of the vessel. Then analyses were completed on a half model of the heater with symmetry boundary conditions applied on the cut boundary. The nozzle was treated as having half symmetry.
• A reduced set of U-tubes was modelled. Properties of the modeled tubes were adjusted to account for the not-modeled tubes.


For over 30 years, Our Team of Engineers has been performing (Finite Element) design, analysis and troubleshooting services to ASME and Other Codes.

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Tom O’Donnell, PE
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