Static Stress Analysis on Adaptor Spool-Flange Assembly for Enhancement of Pressure Rating

Abstract

Power plant and petroleum industries require huge number of piping networks to transfer fluid between different sections of the plant. Adaptor spool & adaptor flange assembly connects pipes as they are considered as simple and can be bolted to one another. Adaptor spools are imbedded into concrete walls during the construction. This thesis points out at spool flange & adaptor assembly design pertaining to petroleum industry. The assembly should be designed in such a way that it has to with-stand complex circumstances conditions such as continuous variations in pressure loads, temperature and flow variations. This will trigger some kind of uncertainty failures in the pipe network especially in spool flange adaptor assembly. Taking into account of pressure loads, the project modelled and analyzed the spool flange adaptor assembly. For this design study FEA approach with ANSYS is exhaustively used. With the simulation study the pressure rating of adaptor spool flange assembly is analysed. By modifying the geometry of elements of the assembly, the pressure rating is enhanced. This will help in increasing the life of pipe network in petroleum industry.