PRINCIPLES of CHEMICAL ENGINEERING
 Details
 Category: FIRST YEAR  II° Semester
 Published on Friday, 11 April 2014 10:36
 Written by Prof. Domenico Acierno
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Programma
Corso di Laurea Magistrale in Chemical Engineering for Industrial Sustainability (LM22)
Anno Accademico 2014  2015
CORSO di “PRINCIPLES OF CHEMICAL ENGINEERING” (Cod: 91283)
Course teacher: Prof. Domenico Acierno
Dipartimento di Ingegneria Industriale (ex DMFCI) Building 13.
email: This email address is being protected from spambots. You need JavaScript enabled to view it.
OBIETTIVI 
Acquisition of the concepts of momentum, energy and matter balance and the basic mathematical tools aimed at implementing the laws of molecular transport on a microscopic scale for the determination of the velocity profiles, temperature and matter concentration; using of semiempirical of coefficients for the description of transport between the phases in macroscopic systems of engineering relevance.
The teaching methodology of the course consists of lectures and exercises


PREREQUISITI RICHIESTI 
No preparatory aspects.


FREQUENZA LEZIONI 
The student is required to attend at least 70% of the lessons, cfr. Punto 3.3 of Regolamento Didattico of CLM in Chemical Engineering for Industrial Sustainability


TESTI DI RIFERIMENTO 
1. Transport Phenomena – Bird, Stewart, Lightfoot – Casa Editrice Ambrosiana – Milano 


2 Lecture notes 




PROVA D’ESAME 


Appelli successivi all’erogazione del corso 
Written test followed by oral examinations. 

Modalità di iscrizione ad un appello d’esame 
he reservation for an exame session is mandatory and must be made exclusively through the web portal students within the scheduled period.


Date d’esame 
http://portalestudente.unict.it/portalestudente/mapServlet


CONSEGNA MATERIALE DIDATTICO 
The supplementary material is provided in hard copy at the end of lessons.

PROGRAMMA DEL CORSO
1. MOMENTUM TRANSPORT The viscosity and the mechanism of momentum transport. Newton's law of viscosity. The viscosity and the mechanism of momentum transport. Newton's law of viscosity. Velocity distribution in laminar flow. Momentum balance in a layer; boundary conditions. Motion of a falling film. Motion of a fluid in a circular tube. Motion in a section ring. Motion of two adjacent immiscible fluids. Numerical examples.


2. EQUATIONS OF VARIATIONS FOR ISOTHERMAL SYSTEMS Velocity distribution in turbulent flow. Fluctuations and time averaged quantities. Transport between the phases in isothermal systems. Dimensional analysis and Buckingham theorem. Definition of the friction coefficients. Friction coefficient of for motion in tubes. Friction coefficient for motion around spheres.


3. VELOCITY DISTRIBUTION IN TURBULENT FLOW Fluctuations and time averaged quantities. Transport between the phases in isothermal systems. Dimensional analysis and Buckingham theorem. Definition of the friction coefficients. Friction coefficient of for motion in tubes. Friction coefficient for motion around spheres. Numerical examples.


4. MACROSCOPIC BALANCE FOR ISOTHERMAL SYSTEMS Macroscopic mass balance. Macroscopic momentum balance. Macroscopic mechanical energy balance (Bernoulli). Evaluation of friction losses. Application of macroscopic balances in solving problems with movement. Numerical examples. 

5. THE THERMAL CONDUCTIVITY AND THE MECHANISM FOR TRANSPORTING ENERGY Fourier's law of heat conduction. Temperature distribution in solids and in laminar flow. Energy balance in a layer; boundary conditions. Heat conduction through composite walls. Forced convection. Natural convection. Numerical examples. 

6. THE EQUATIONS OF VARIATION FOR NONISOTHERMAL SYSTEMS The energy equations. Transfer between the phases in nonisothermal systems. Definition of the heat transfer coefficient. Heat transfer coefficient for forced convection within the tubes. Heat transfer coefficients for forced convection around submerged objects. Numerical examples. 

7. MACROSCOPIC BALANCES IN NONISOTHERMAL SYSTEMS Macroscopic energy balance. Mmacroscopic mechanical energy balance (Bernouli). Use of the macroscopic balances to solve problems in steady state. Numerical examples. 

8. THE DIFFUSIVITY AND THE MECHANISM OF MASS TRANSPORT Definitions of mass concentration, mass rate and mass flow. Fick's law of diffusion. Concentration distribution in solids and in laminar flow. Mass balance in a layer; boundary conditions. Diffusion through a stagnant gas film. Diffusion with heterogeneous chemical reaction. Diffusion with homogeneous chemical reaction. Diffusion in a falling liquid film; mass transfer by forced convection. Numerical examples.
9. TRANSPORT BETWEEN PHASES IN MULTICOMPONENT SYSTEMS Definition of binary coefficients of mass transport in one phase. Correlations of the transfer coefficients in a phase for low rate of mass transfer. Numerical examples. Macroscopic balances with more than one component. The macroscopic mass balance. The macroscopic momentum balance. The macroscopic energy balance. The macroscopic mechanical energy balance.



