EQUIPMENT DESIGN FOR CHEMICAL INDUSTRY
Academic Year 2022/2023 - Teacher: Guido LA ROSAExpected Learning Outcomes
Preliminary information and basic techniques are provided for the mechanical design of components of industrial plants, in particular in the field of chemical and petrochemical plants.
Topics related to the behavior of materials under mechanical and / or thermal loads under static and dynamic conditions and design of simple mechanical components will be dealt with.
In particular, the notions and techniques necessary for the design of pressure pipes and vessels and for the optimal choice of materials will be developed.
Course Structure
The course will be divided into two modules, respectively 61 hours (Module A) and 30 hours (Module B), held by Prof. Giudice. Both modules will consist of:
Frontal lessons.
Exercises on the topics of the course.
Required Prerequisites
Attendance of Lessons
Detailed Course Content
Module A
- Concepts of elasticity theory, Hooke's law, concepts of stress and strain,
- Equilibrium of a solid body, internal actions and constraint reactions. Isostatic and hyperstatic. Axial and tangential forces.
- Mass and area geometry.
- Concepts of tensile / compressive, bending, torsion and shear stresses. The stress tensor. Principal and ideal stresses.
- Bending beams, methods for determining stresses and displacements. Principle of virtual works and singularity functions.
- Euler's critical load.
- Fatigue of materials.
- Thermal stresses. Viscoelasticity. Creep and relaxation.
- Introduction to fracture mechanics.
- Axles and transmission shafts.
- Fundamental of lubrication.
Module B
- Pressure vessels (Towler & Sinnott)
- Piping systems (Towler & Sinnott, teacher notes)
- Heat-transfer equipment (Towler & Sinnott, teacher notes)
- Approaches to materials selection (Ashby)
Textbook Information
Module A
- Ferdinand Beer, Jr. Johnston, E. Russell, John DeWolf, David Mazurek, Mechanics of Materials, McGraw-Hill
- Richard G. Budynas, Shigley's mechanical engineering design, McGraw-Hill Education
- Notes on the topics of the course.
Module B
- G. Towler, R. Synnott, Chemical Engineering Design: Principles, Practice and Economics of Plant and Process Design,,Butterworth-Heinemann, 2013
- M.F. Ashby, Materials Selection in Mechanical Design, Butterworth-Heinemann, 2015
Course Planning
Subjects | Text References | |
---|---|---|
1 | Concepts of elasticity theory, Hooke's law, concepts of stress and strain, | Mechanics of materials |
2 | Equilibrium of a solid body, internal actions and constraint reactions. Isostatic and hyperstatic. Axial and tangential forces. | Mechanics of materials |
3 | Concepts of tensile / compressive, bending, torsion and shear stresses. The stress tensor. Principal and ideal stresses. | Mechanics of materials |
4 | Fatigue of materials. | Shigley |
5 | Bending beams, methods for determining stresses and displacements. Principle of virtual works and singularity functions. | Mechanics of materials/Shigley |
6 | Thermal stresses. Viscoelasticity. Creep and relaxation. | Notes |
7 | Pipes and pressure vessels. Gears and speed reducers. | Shigley |
8 | Fracture mechanics | Shigley |
9 | Pressure vessels | Towler & Sinnott |
10 | Heat-transfer equipment | Towler & Sinnott, teacher notes |
11 | Piping systems | Towler & Sinnott, teacher notes |
12 | Approaches to materials selection | Ashby |
Learning Assessment
Learning Assessment Procedures
Examples of frequently asked questions and / or exercises
- Determination of constraint reactions and of internal forces and moments
- Determination of stress and strain status
- Design of transmission shafts
- Fatigue of materials
- Pipes analysis and design
- Criteria for materials selection