Design Optimization Of Saddle Support For High Capacity Pressure Vessel

Mohamad Qabil, Ismail (2015) Design Optimization Of Saddle Support For High Capacity Pressure Vessel. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text (24 Pages) Design Optimization Of Saddle Support For High Capacity Pressure Vessel 24 Pages.pdf - Submitted Version Download (369kB)

Abstract

Saddle support is used to hold a horizontal high pressure vessel on its desired location. Fabrication of saddle support regularly by referring to the existed code and standard that is contained in code of ASME Code of Section (VII), Division 1 and Division 2 (Boiler and Pressure Vessel Code). This project will presented the optimization of structure of saddle support for a horizontal pressure vessel used in upstream operation and thus search for the saddle requirement in order to enhance its factor of safety. First, the existence design of saddle is gathered from the local industrial site. Finite element analysis method (FEM) is used to analyze the design. The 3D model of saddle is constructed using SOLIDWORKS 2013 software. A result of analysis is then obtained after meshing the model in the software by using ANSYS 15 and tested for static and cyclic loading condition. During the static loading analysis, the factor of safety was reduced from 1.26 to 3.64 after optimization was made to the original design based on von mises criterion. In cyclic loading analysis, once again the optimized design from static loading analysis showed high factor of safety that is 3.20 compare to the original design tested for cyclic loading factor of safety, 0.41 based on modified Goodman fatigue criterion. Cyclic loading simulation analysis predicted that the life of original design of saddle support was about 5.7 years after subjected to cyclic load. Optimized design develops before in the static loading analysis lives were predicted to be 456.6 years which is increased about 801% of its original design. It is proven that the optimized design can embrace the load by referring to this factor. However, this prediction was not cover the effect of vibration, corrosion and thermal condition of pressure vessel.

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