Shell Thickness Calculation under External Pressure in Pressure Vessels

Shell Thickness Calculation under External Pressure in Pressure Vessels

Overview
A. Reference:
ASME Section VIII Division 1 Paragraph UG-28, Figure UG-28, Figure UG-28.1
ASME Section II Part D Subpart 3, Figure G, Applicable chart, Table 1A, Table Y-1

B. Application: Vacuum condition, tube, others

C. Symbol and Definition of external pressure calculation in the shell: Factor A, Factor B

D. Minimum Required Data: Design external pressure, Design external temperature, Outside diameter, Length of the shell, Material type

E. Step by step calculation
1. Assume t, Calculate L/Do, Do/t
2. Define L/Do
3. Define factor A
4. Define applicable figure and E
5. Define factor B
6. Define Pa using factor B
7. Define Pa using factor A
8. Iterate t until Pa greater than P

F. Study cases: 1.5 MPa, 200 deg C, Do 500 mm, L 1000 mm, Material SA 516 Gr.70


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List of Playlist:
Full Video (First Edition) :    • Full Video (First Edition)  
Pressure Vessel Basic Design :    • Pressure Vessel Basic Design  
Pressure Vessels Series :    • Pressure Vessels Series  
Shell and Tube Heat Exchangers :    • Shell and Tube Heat Exchangers  
ASME B31.3 :    • ASME B31.3  
Design of Material :    • Design of Material  
Shell Calculation :    • Shell Calculation  
External Pressure Design Calculation :    • External Pressure Design Calculation  
Thickness Calculation :    • Thickness Calculation  
Welded Joints, Radiograhy, Joint Efficiencies :    • Welded Joints, Radiography, Joint Efficien...  
Type of Pressure Design Calculation :    • Types of Pressures Design Calculation  
Nozzles, Reinforcement, Flanges, and Fittings :    • Nozzles, Reinforcement, Flanges, and Fitti...  
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Study Cases :    • Study Cases  
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