Study Programmes 2015-2016
CHIM0022-3  
Transport phenomena
Duration :
30h Th
Number of credits :
Master in chemistry (120 ECTS)4
Master in chemistry (120 ECTS)4
Lecturer :
Andreas Pfennig
Language(s) of instruction :
English language
Organisation and examination :
Teaching in the first semester, review in January
Units courses prerequisite and corequisite :
Prerequisite or corequisite units are presented within each program
Course contents :
This course presents an analysis of the transport phenomena at the basis of chemical engineering with the focus on heat and mass transfer.


  • Definitions of extensive and intensive properties. Concepts of mass, momentum, and energy balance equations. Dimensionless numbers, Pi-theorem.
  • Molecular basis for heat and mass transfer. Similarity between both.
  • Energy-balance equation. Conductive and radiative contributions. Fourier's law: thermal conductivity. Stefan-Boltzmann's law: Stefan-Boltzmann constant, emissivity. Conductive stationary heat transfer: heat transfer coefficient. Conductive transient heat transfer: Fourier's number.
  • Mass balances. Relative displacement flux, diffusional flux. Fick's and Maxwell-Stefan law, different molecular diffusion coefficients. Transient mass transfer. Quasi-stationary mass transfer: mass-transfer coefficient.
  • Convective heat and mass transfer. Stagnant-film model, surface-renewal theory, penetration theory, two-film theory. Dimensionless numbers. Correlations of mass-transfer coefficients.
  • Instabilities at interfaces induced by mass transfer.
Learning outcomes of the course :
At the end of the course, students understand and will be able to apply theoretical concepts and the analysis methodology of transport phenomena, especially heat and mass transfer. They will be able to use these concepts to describe mathematically simple experimental systems. They will be able to use the formalism of mass and heat transfer coefficient.
Students will be able to link investigated phenomena to their mathematical representation and justify main simplifications adopted to develop the model
Prerequisite knowledge and skills :
The courses "Chemistry" (CHIM0603-1), "Eléments de thermodynamique" CHIM0286-1, and "Elements of fluid mechanics" (MECA0011-2) (or courses with similar contents) should have been attended during previous years (or they should be attended the same year).
Planned learning activities and teaching methods :
The course is based on ex-cathedra lectures (30 h).
The lectures are dedicated to the detailed description of the fundamental concepts necessary for the analysis and mathematical representation of transport phenomena.
Mode of delivery (face-to-face ; distance-learning) :
Face-to-face
Recommended or required readings :
The course material is available on the eCampus website.
Assessment methods and criteria :
A written exam is organized during the first session in January.
The exam consists of questions referring to basic understanding of the lecture content.
It is a closed-book exam. Students receive a formulary with all relevant equations.
The second session exam is organized in the same way as in January.
Work placement(s) :
---
Organizational remarks :
The course will be presented in English.
The course is organized during the first quadrimester.
Contacts :
Andreas Pfennig PEPs (Products, Environment and Processes) Departement of Chemical Engineering University of Liège Quartier Agora, Allée du six Aout 11, Bâtiment B6c, office 1/66 e-mail: andreas.pfennig@ulg.ac.be phone: +32 4 366-3521
 
Saicha Gerbinet PEPs (Products, Environment and Processes) Departement of Chemical Engineering University of Liège Bât. B6, Quartier Agora, Allée du six Aout 13, 4000 Liège, Belgique phone: +32 4 366-3547 e-mail: saicha.gerbinet@ulg.ac.be   The list of assistants and their contact details is available on www.chimapp.ulg.ac.be