ROOT CAUSE ANALYSIS AND CORRECTIVE MEASURES OF DISSIMILAR WELD JOINT FAILURE IN A HIGH PRESSURE STEAM PIPE

Problem Definition During operation of a petrochemical plant (Middle East), recurring appearance of cracks in dissimilar metal welding joint of a critic, high-pressure steam pipe have been detected (2010-2014). Cracks appear periodically over the same area, which is the butt weld joining two pieces made of different materials A-335-P91 and SS347H. Weld material is INCONEL625. … Read more

FLUE GAS DUCTS AND STACKS. ADVISORY AND DESIGN

Industrial flue gas ducts and stacks are recurrent object of combined  Computational Fluid Dynamic (CFD) and Finite Element  (FEM) Analyses aimed to: Improvement of flow perfomance in order to obtain an optimal temperature and velocities distribution. Reduction of pressure losses (compliance with process parameters) Prevention of vibration issues. Resonance Minimization of duct sections (reduction of … Read more