Design Calculation Of Nozzle Junction Based On ASME Pressure Vessel Design Code

Abstract

Nozzle is a device designed to control the direction or characteristics of fluid (especially to increase velocity) as it exits (or enters) an enclosed chamber or pipe. Under different loading conditions, the stress will occur at the nozzle to head or shell junction area. Thus reliable and accurate design calculation for head or shell to nozzle junction is necessary. The calculation for nozzle design gives the information whether the design is adequate for given parameters. In this paper, design calculation of nozzle junction based on ASME pressure vessel design code is carried out for nozzle to head junction subjected to applied external load, internal pressure and moments. The equations are as per ASME Section VIII Division I. This paper gives methodize steps and format for design calculation for reinforcement of nozzle. The results are also compared with PV-Elite code.