Design, Analysis and Optimization of Non Standard Weld Neck Body Flange in Small Pressure Vessel

Pressure vessels are leak proof containers, as the name implies, their main purpose is to contain a given medium under pressure and temperature. Pressure vessels are commonly used in industry to carry both liquid and gases under required pressure and temperature limit. This pressure and temperature comes from an external source or by the application of heat from a direct or indirect source or any combination of them. After the review of many research papers, we find out that basically the most of the pressure vessels diameter was taken was from 300 mm to 2000 mm. Initially, we designed three non-standard body flanged pressure vessels different diameters. Pressure and material of vessels were selected as per practical conditions. We took SA 516 as flange material. After the designing of all cases we figure out the various stresses, loads and deformation using ANSYS and Pv-Elite. After that we redesigned Pressure vessels using standard flanges and figure out the same parameters using Pv-Elite and ANSYS. To optimize the non-standard flange we compared results of both flanges. We found that at almost same operating bolt load in non-standard flange with diameter 500mm has considerable deformation and stress intensity. Whereas in standard flange, in the same case, there is less deformation and stress intensity. The value of deformation and maximum stress intensity in 500mm diameter non-standard flange was 0.044043mm and 107.8 Mpa respectively and in standard flange value of deformation and maximum stress intensity was merely 0.014641mm and 16.548 Mpa respectively. In other two cases, in both standard and non-standard flanges, there is very small difference in deformation and stress intensity. The operating bolt load is slightly higher in standard flange due to greater bolt circle diameter, which results as the slightly higher deformation and stress intensity in both 1000mm and 1500mm diameter flange. In non-standard flange we required more thickness as compared to standard flange. But if we compare the weight of standard and non-standard flange, we found standard flange is almost double in weight. Citation: Er. Karanjeet Singh, North-West Institute of Engg. And Tech., Dhudike, Moga, Punjab, India; Er. Satvirpal Singh ,North-West Institute of Engg. And Tech., Dhudike, Moga, Punjab, India; Er. Ramandeep Singh Dhaliwal ,North-West Institute of Engg. And Tech., Dhudike, Moga, Punjab, India; Er. Didar Singh ,Anand College of Engg. And Mgmt., Kapurthala Punjab, India. "Design, Analysis and Optimization of Non Standard Weld Neck Body Flange in Small Pressure Vessel." Global Research and Development Journal For Engineering 36 2018: 14 - 20.