It is required to design a pressure vessel for an operating condition of internal pressure 10...

 

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It is required to design a pressure vessel for an operating condition of internal pressure 10 MPa and temperature 200 °C. Nozzle-2 is centrally located in a 2:1 ellipsoidal head, as shown in FIGURE Q1. Nozzle-1 is to be welded perpendicular to the longitudinal axis of the shell but on the radial line. Inside diameter of the shell is 1.2 m. A corrosion allowance of about 3 mm is considered acceptable. For both nozzles, assume full penetration weld. Specification of the Nozzles Nozzle-1 Nozzle-2 NPS (inch) 12 10 SCH 5S 10S NPS: Nominal Pipe Size; SCH: Schedule I.D Nozzle-2 FIGURE Q1 Material SA-106, Grade A SA-106, Grade B 2:1 Ellipsoidal Cover Shell Nozzle-1 a. b. C. If the head and shell material is SA-515 Grade 70, determine the reinforcement requirement for Nozzle-1 and Nozzle-2, respectively. [10 marks] Repeat the calculation in part (a) if the pressure is rather an external design pressure of 10 MPa. [10 marks] There is an interest to use Nozzle-1 as a manway. To realize this, the shape of the nozzle needs to be changed to elliptical opening of size 300 mm x 400 mm. Assess the reinforcement requirement for this proposal. [10 marks] It is required to design a pressure vessel for an operating condition of internal pressure 10 MPa and temperature 200 °C. Nozzle-2 is centrally located in a 2:1 ellipsoidal head, as shown in FIGURE Q1. Nozzle-1 is to be welded perpendicular to the longitudinal axis of the shell but on the radial line. Inside diameter of the shell is 1.2 m. A corrosion allowance of about 3 mm is considered acceptable. For both nozzles, assume full penetration weld. Specification of the Nozzles Nozzle-1 Nozzle-2 NPS (inch) 12 10 SCH 5S 10S NPS: Nominal Pipe Size; SCH: Schedule I.D Nozzle-2 FIGURE Q1 Material SA-106, Grade A SA-106, Grade B 2:1 Ellipsoidal Cover Shell Nozzle-1 a. b. C. If the head and shell material is SA-515 Grade 70, determine the reinforcement requirement for Nozzle-1 and Nozzle-2, respectively. [10 marks] Repeat the calculation in part (a) if the pressure is rather an external design pressure of 10 MPa. [10 marks] There is an interest to use Nozzle-1 as a manway. To realize this, the shape of the nozzle needs to be changed to elliptical opening of size 300 mm x 400 mm. Assess the reinforcement requirement for this proposal. [10 marks]

Answer rating: 100% (QA)

a To determine the reinforcement requirement for Nozzle1 and Nozzle2 we need to calculate the maximum allowable working pressure MAWP of the pressure vessel using the formula MAWP 23 SE04TJ SE where S ... View the full answer