Subject Code & Name: PC25C02 – Design of Pressure Vessels and Storage Vessels
Regulation: R-2025
Semester: IV (Fourth Semester)
Branch: B.Tech. Petrochemical Technology (Petrochem)
Credits / L-T-P: 3 Credits | L-T-P: 3-0-0
Course Objectives
- To provide comprehensive knowledge on the fundamentals, design criteria, component design calculations, fabrication methods, inspection procedures, and safety standards involved in pressure vessels and storage vessels used in petrochemical industries.
Full Unit-wise Syllabus
Unit I – Design of Pipe Fittings and Joints
Stress-strain relationships - elastic materials - tensile forces - compressive forces - shear forces - membrane stresses - shells of revolution - theories of failure - design of bolts - schematic of screws - design of shafts - design of couplings.
Activities: Identification of pressure vessels used in petrochemical industries, ASME Section VIII design practices, material selection analysis for high-pressure applications, and industrial case studies on vessel failures.
Unit II – Design of Pressure Vessels
Unfired pressure vessels - pressure vessel codes - design of cylindrical shells - design of spherical shells - internal pressure - external pressure - flat plate closures - torispherical closures - ellipsoidal closures - conical closures - shell design - tall vertical vessels - nozzle openings - compensation of openings.
Activities: CAD drawing of vessel heads and nozzles, calculation of nozzle reinforcement area, mini project on flange selection and gasket design, and virtual demonstration of pressure relief systems.
Unit III – Design of Storage Vessels
Storage tank codes - classification of tanks - design of shell - design of bottom plates - self-supported roofs - column-supported roofs - wind girders - nozzles - accessories for storage tanks.
Activities: CAD Modelling, Design Calculations, Simulation, Component Analysis, Case Study, Technical Discussion.
Unit IV – Fabrication and Materials
Fabrication steps - vessel lining - materials for chemical equipment - vessel coatings - selection of coatings - application of coatings - selection of materials for process equipment - material selection for process fluids.
Activities: Layout Preparation, Industrial Visit, Wind Load Calculations, Tank Design Comparison, Structural Analysis, Technical Discussion.
Unit V – Design of Supports for Vessels
Types of supports - design of skirts - design of brackets - design of saddle supports - design of leg supports - special types of vessel supports.
Activities: Welding and NDT Demonstration, Hydrostatic Testing Analysis, Software Modelling using PV Elite/AutoCAD/Solid Works, and Safety Case Study on Pressure Vessel Accidents.
Course Outcomes (COs)
- CO1: Understand stress-strain relationships of engineering materials and the fundamentals of shaft and coupling design.
- CO2: Apply design principles to cylindrical and spherical pressure vessels subjected to internal and external pressures.
- CO3: Analyze the design requirements and performance characteristics of storage vessels used in process industries.
- CO4: Evaluate material selection criteria for process equipment based on fluid properties, operating conditions, and corrosion considerations.
- CO5: Design piping systems by incorporating layout considerations, flexibility analysis, and stress evaluation for safe and efficient operation.
Assessment Pattern (Quick Note)
- Weightage: Continuous Assessment 40% | End Semester Examinations 60%
- Internal methodology: Assignments (10%), Design calculations and application- oriented problems (10%), Solving competitive examination questions (10%), Internal Examinations (70%)
Source: Official Anna University – B.Tech. Petrochemical Technology R-2025 Syllabus
Last Updated: October 2026
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