• GE Oil&Gas
• centrifugal compressor
• optimization
• PED

The PED Directive is a European law issued in 2002 and this Directive covers all “pressure equipment”. However there are some exclusions from PED such as compressors, turbines and so on when the pressure is not a significant design factor for the device and the pressure does not represent an hazard for the people.
The aim of the work is analysed with some International Codes for the vessels and centrifugal compressors, and with Finite Element Analysis, if the primarily compressor casing design criterion, built in GE Oil&Gas, is the pressure or something else.
This work allows to evaluate the applicability of the PED on GE Oil&Gas centrifugal compressors casings or not and, if it is applicable, which additional requirements the compressors must satisfy.
The document also provides a structural parametric optimization of a particular barrel casing and the evaluation of its strength and stiffness varying some geometrical parameters.