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151-0917-00L 3 Credits BSC D-MAVT
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Mass Transfer

Stofftransport

Lecturers: Prof. em. Dr. Sotiris E. Pratsinis
Examiners: Prof. em. Dr. Sotiris E. Pratsinis, Dr. Karsten Wegner
VVZ CR n/a

Last Updated: 2026-02-05 15:00:20

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; Reynolds- and Chilton-Colburn analogies for mass-, heat-, and momentum transfer in turbulent flows; film-, penetration-, and surface renewal theories; simultaneous mass, heat and momentum transfer (boundary layers); homogenous and heterogenous reversible and irreversible reactions; diffusion-controlled reactions; mass transfer and first order heterogenous reaction. Applications.

Resources

Literature

Cussler, E.L.: „Diffusion“, 2nd edition, Cambridge University Press, 1997.

General Information

Language
English
Levels
BSC
Frequency
Yearly recurring

Examination

Type
session examination
Mode
written 120 minutes
Aids
Taschenrechner, Textbuch (Cussler). 1 handgeschriebene A4-Seite Formelsammlung, Skript.

Course Components

Type Title Time & Place Hours
lecture Stofftransport
  • Wed 10:15-12:00 (ML H 44)
2 h weekly
exercise Stofftransport
Uebung am Montag von 10-11 Uhr nur für Chemie-Ingenieure. Verantwortlich O. Dossenbach.
  • Mon 09:45-10:30 (HCI F 8)
  • Tue 13:15-14:00 (ML H 44)
1 h weekly

Offered In