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Politecnico di Torino
Academic Year 2017/18
02OCTMW
Conceptual process design
Master of science-level of the Bologna process in Chemical And Sustainable Processes Engineering - Torino
Teacher Status SSD Les Ex Lab Tut Years teaching
Barresi Antonello ORARIO RICEVIMENTO PO ING-IND/24 41 0 39 5 13
SSD CFU Activities Area context
ING-IND/24
ING-IND/26
2
6
B - Caratterizzanti
B - Caratterizzanti
Ingegneria chimica
Ingegneria chimica
Subject fundamentals
To design a process requires to make many choices related to the degrees of freedom available and to choose a philosophy for material recycle and energy saving.
In this course the gerarchical approach proposed by Douglas will be illustrated: it starts from simple input-output macroscopic balances to proceed to successive levels of detail, selecting the relevant process variables to optimise the profit.

The different aspects will be taught by means of design project carried out in team.
Expected learning outcomes
The student will learn how:
- to develop the conceptual design of a chemical process;
- to write the design report (and draw the PFD of the process);
- to calculate fixed and variable costs, to estimate the requested investment and the product cost;
- to analyze the energy requirement and to evaluate possible energy integration policies;
- to optimize the heat exchangers-network to minimize energy consumption.
To reach these objectives it is necessary to acquire the following skills:
- to size a piece of equipment using short cut methods;
- to estimate the cost of different pieces of equipment;
- to use a process simulator (ASPEN) to solve the process mass and energy balances
- to use a process simulator (ASPEN- Energy Analyzer) to minimize the energy consumption of the process and to design the heat-exchangers network.
Prerequisites / Assumed knowledge
The course aims to teach a methodology for the development of a chemical process and to demonstrate how the skills acquired in the previous courses of transport phenomena, thermodynamics, reactor engineering, plant design, safety are used by a chemical engineer in the design of a process.
Contents
Process design:
- feasibility study
- conceptual design
- basic engineering
Gerachical approach to conceptual design.
Energy integration.
Cost evaluation.
Evaluation of different alternatives.
Delivery modes
Team work with the feasibility study of a process, up to the Process Flow Diagram.
Practice in LAIB with Aspen and Aspen Energy for process energy integration.
Texts, readings, handouts and other learning resources
Reference text:
J.M. Douglas, Conceptual design of chemical processes. McGraw-Hill, Singapore, 1988

Additional references:
F.C. Jelen, Cost and optimization engineering. McGraw-Hill, New York, 1970.
W. Neri, Progettazione e sviluppo degli impianti chimici, Vol. 1. Vallecchi, Firenze, 1970.
L. Peccati, Scelte finanziarie, in: Matematica finanziaria (E. Castagnoli e L. Peccati), Ediz. Giuridiche Economiche Aziendali dell'UniversitÓ Bocconi, Milano, 1993, pg. 23-62.
M.S. Peters and K.DD. Timmerhaus, Plant design and economics for chemical engineers. McGraw-Hill, New York, 1968.
R.K. Sinnott, Chemical Engineering Design. Coulson & Richardson's Chemical Engineering, Vol. 6. Pergamon, Oxford, 2nd Edition, 1993.
M. Zlokarnik, Scale-up in chemical engineering. Wiley-VCH, Weinheim, 2002.
Assessment and grading criteria
In order to gain access to the exam, both participation in team exercises and delivery of the project developed at the end of the lesson period are required. Because the project development of the groups closely follows the theoretical aspects discussed in the lessons, during the exercises it will be possible to monitor the degree of learning of the concepts exposed in the lessons and the activity of the individual components.
The final evaluation will mainly be based on the report produced in the exercises and on the oral discussion about of the report, in order to evaluate the acquisition of expected skills and any managerial abilities.
The oral discussion is aimed at assessing the communicative abilities of individuals, their role in the project, and also to evaluate the knowledge and understanding of the subject. The final vote will take into account quality of the report [40%], project discussion [30%] and answer to questions related to the theoretical aspects [30%] of the report.

Programma definitivo per l'A.A.2017/18
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