Heat and Mass Transfer

Base Knowledge

Good background in Mathematics and Thermodynamics

Teaching Methodologies

Theoretical classes exposing the contents of the curricular unit using wherever possible the presentation of examples within a Bioengineering context in all its branches and theoretical practices classes for solving problems of application. In theoretical practices classes, after a general discussion about the problems, students are encouraged to continue with its resolutions and at the end a discussion of the results is made. The problems proposed to solve in the theoretical practices classes are available to the students in advance.

Learning Results

The purpose of this course is to provide students with the fundamentals of heat and mass transfer and apply them to natural or engineered biological systems.
The objectives to be achieved by students attending this course are: i) Understand the physical and mathematical fundamentals of heat and mass transfer mechanisms; ii) Develop microscopic and macroscopic energy and mass balances in steady state for mediums of different geometries; iii) Apply the knowledge acquired in design applications of simple equipment, like heat-exchangers; iv) Solve stead state problems with one-dimensional diffusion using Fick’s first law; v) Solid knowledge in mass transfer in multi-phase systems and individual and overall mass transfer resistances; vi) Capacity to solve problems including heat and mass transfer.

Program

I. Heat Transfer
– Introduction: mechanisms and regimes of heat transfer, conduction and convection.
– One-Dimensional Steady State Conduction: heat conduction in plane walls, cylinders and spheres, thermal resistance concept and thermal resistance network, critical radius of insulation.
– Heat Exchangers: the overall heat transfer coefficient, analysis of heat exchangers, the logaritmic mean temperature difference method, the effectiveness – NTU method.
– Convective Heat Transfer Correlations: external and internal forced convection, natural convection.
II. Mass Transfer
– Introduction: mechanisms and regimes of mass transfer.
– Mass Diffusion: Fick’s law of diffusion, steady mass diffusion in plane walls, cylinders and spheres.
– Interfacial Mass Transfer: convective mass transfer, equilibrium, individual mass transfer coefficients and overall mass transfer coefficients.

Curricular Unit Teachers

Grading Methods

Avaliação Por Exame
  • - exame - 100.0%

Internship(s)

NAO

Bibliography

J. P. Holman, Heat Transfer, McGraw-Hill, 10ª edição, 2016

   Franck P. Incropera, David P. DeWitt, Theodore L. Bergman e Adrienne S. Lavine, Fundamentals of Heat and Mass Transfer, John Wiley & Sons, 7ª edição, 2011

James R. Welty, Charles E. Wicks, Robert E. Wilson e Gregory L. Rorrer, Fundamentals of Momentum, Heat and Mass Transfer, John Wiley & Sons, 5ª edição, 2008

George A. Truskey, Fan Yuan, David F. Katz, Transport Phenomena in Biological Systems 2ª edição, Prentice Hall, 2009

Yunus A. Çengel, Heat Transfer – A Practical Approach, 2ª edição, McGraw-Hill, 2003