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Finite Element Analysis

Finite Element Analysis - FactoryOrbital was retained by a midwest refinery to assist in the analysis of a furnace stack that was scheduled to have CEMS analyzers and platforms installed. The stack was suspected of having material loss and may not be suitable for the additional load from the access platform and wind.

Orbital coordinated the inspection work and obtained a stack wall thickness grid. The stack was modeled in a FEA program and the data entered for stress analysis. Wind load revealed that the stack was subject to possible vortex shedding and movement and that strakes would be necessary.

Design drawings were prepared to locate stack connection points for supports and the new strakes. Access platforms were prefabricated in three (3) segments that facilitated their installation with a crane.

Finite Element Analysis of stacks, chutes and other similar equipment is an area of specialization for Orbital Engineering.