Analysis of an expander casing


We have conducted strength analysis of an expander body that has been undertaken to verify the integrity of the construction in terms of providing the appropriate number of cycles.

The preparation of thermal analysis on the basis of the test data and the results of the CFD analysis has been the starting point for structural analysis. The resulting temperature distribution has been used as the boundary conditions for the structural analysis.

The scope of structural analysis comprised the verification of flange connections for signs of leakages in both steady and the transient states of the expander operation. The modifications carried out on the basis of the obtained results allowed the execution of water pressure tests in an easy way and appropriate selection of pre-tensioning of bolts.