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151-0917-00L 4 Credits BSC , MSC D-HEST , D-BIOL , D-CHAB , D-MAVT
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Mass Transfer

VVZ CR n/a

Last Updated: 2026-02-05 16:01:59

Abstract

This course presents the fundamentals of transport phenomena with emphasis on mass transfer. The physical significance of basic principles is elucidated and quantitatively described. Furthermore the application of these principles to important engineering problems is demonstrated.

Objective

This course presents the fundamentals of transport phenomena with emphasis on mass transfer. The physical significance of basic principles is elucidated and quantitatively described. Furthermore the application of these principles to important engineering problems is demonstrated.

Content

Fick's laws; application and significance of mass transfer; comparison of Fick's laws with Newton's and Fourier's laws; derivation of Fick's 2nd law; diffusion in dilute and concentrated solutions; rotating disk; dispersion; diffusion coefficients, viscosity and heat conduction (Pr and Sc numbers); Brownian motion; Stokes-Einstein equation; mass transfer coefficients (Nu and Sh numbers); mass transfer across interfaces; Analogies for mass-, heat-, and momentum transfer in turbulent flows; film-, penetration-, and surface renewal theories; simultaneous mass, heat and momentum transfer (boundary layers); homogeneous and heterogeneous reversible and irreversible reactions; diffusion-controlled reactions; mass transfer and first order heterogeneous reaction. Applications.

Resources

Literature

Cussler, E.L.: "Diffusion", 3nd edition, Cambridge University Press, 2009.

General Information

Language
English
Levels
BSC , MSC
Frequency
Yearly recurring

Examination

Type
session examination
Mode
written 120 minutes
Aids
Standard wissenschaftlicher Taschenrechner (nicht-kommunikationsfähig, keine Computer oder Mobiltelefone), Textbuch (Cussler), 1 DIN A4-Blatt (Vorder- und Rückseite) Formelsammlung, Skript
During the semester, two interim examinations will be offered to help students assess their Mass Transfer performance and prepare for the final exam. The two interim exams are optional and only contributing to the final grade if they help improve it. They may count together up to 30% (15% each) towards the overall result, depending on student performance.

Course Components

Type Title Time & Place Hours
lecture Mass Transfer
  • Wed 10:15-12:00 (IFW A 36)
2 h weekly
exercise Mass Transfer
The exercise will start in the 2nd week of the Semester.
  • Tue 14:15-16:00 (HG E 1.1)
2 h weekly

Offered In