EQUIPMENT DESIGN FOR CHEMICAL INDUSTRY

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 tools for the design of some basic plant elements (pressure tanks, pipes, heat exchangers), the approaches to the optimal choice of materials, and those to the life cycle design and environmental sustainability, will be developed.

The course will be divided into two Modules A and B, lectured by Prof. Fargione and Prof. Giudice, respectively. Both modules will consist of: frontal lessons; exercises on the course topics.

The theoretical-demonstrative lessons will alternate with lessons dedicated to the setting up of exercises that the students will carry out during the course.

If the course is taught in mixed or distance mode, the necessary changes may be introduced with respect to what was previously stated, in order to comply with the program provided and reported in the syllabus.

The verification of learning can also be carried out electronically, if the conditions require it.

Important: Knowledge of the fundamentals of Physics and Mathematics.

Attendance at classes is mandatory.

 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.

       Welding

·       Fundamental of lubrication.

Module B

·       Pressure vessels (Towler & Sinnott)

·       Heat-transfer equipment (Towler & Sinnott, teacher notes)

·       Piping systems (Towler & Sinnott, teacher notes)

·       Approaches to materials selection (Ashby, teacher notes)

·       Life cycle design and environmental sustainability (Giudice et al., teacher notes) 

Module A

• Ferdinand Beer, Jr. Johnston, E. Russell, John DeWolf, David Mazurek, Mechanics of Materials, McGraw-Hill (approfondimento)
• Richard G. Budynas, Shigley's mechanical engineering design, McGraw-Hill Education (riferimento)

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

A test  for each module of the course

Open-ended and multiple-choice questions

For those who do not do the tests on the road, the oral examination on the contents of the course and the project performed is provided

In the case of oral exam. Elements to be evaluated: relevance of the answers, quality of their contents, ability to connect with other topics within the program, ability to report examples, quality of technical language, and overall expressive ability.

•  

  ·       Determination of constraint reactions and of internal forces and moments

  • Determination of stress and strain status
  • Design of transmission shafts
  • Fatigue of materials
  • Design of thin-walled vessels
  • Types of heat-transfer equipment
  • Criteria for materials selection