2.51 | Fall 2008 | Undergraduate

Intermediate Heat and Mass Transfer


Background Topics

Students in this course are expected to be somewhat familiar with the following topics from their previous coursework. We will extend the material in various areas, particularly multidimensional heat conduction and analysis of convection. We will approach thermal radiation from scratch, assuming no previous background. In addition, we plan to review whichever topics seem to need reinforcement, so please do not hesitate to ask questions whenever necessary, either in class or in office hours.

  • First law of thermodynamics for closed and open systems. Also internal energy, enthalpy, and constant-pressure work.
  • Fourier’s law. Thermal conductivity and its magnitude for various materials. Heat flux.
  • Modes of heat transfer. Conduction, convection, and thermal radiation.
  • Thermal resistance. The use of thermal resistance to analyze steady-state heat conduction.
  • Fins. Analysis of quasi-one-dimensional conduction in fins and application of results to various situations.
  • Boundary layers and internal flows. Awareness of these configurations, some knowledge of internal flow energy balances.
  • Convection correlations. Finding heat transfer coefficients from Reynolds numbers and Rayleigh numbers.
  • Heat Exchangers. Typical configurations and epsilon-NTU analysis.
  • Unsteady heat conduction. Lumped capacity model, awareness of one-dimensional unsteady results (charts; Biot and Fourier numbers)
  • Phase-change heat transfer. General awareness of processes of condensation and boiling in a pure substance, some use of correlations.

Textbook Information

The course will be taught from:

Lienhard IV, J. H., and J. H. Lienhard V. A Heat Transfer Version Textbook. 3rd ed. Lexington, MA: Phlogiston Press, 2008. ISBN: 9780971383531.

This book is available without charge in a hyperlinked PDF format (HTML). If you already own a different comprehensive textbook, consult the instructor about its suitability for this course.

The following references are also available:

Mills, A. F. Basic Heat and Mass Transfer. 2nd ed. Upper Saddle River, NJ: Prentice Hall, 1999. ISBN: 9780130962478.

Baehr, H. D., and K. Stephan. Heat and Mass Transfer. New York, NY: Springer-Verlag, 1998. ISBN: 9783540636953.

Also see: Howell, J. R. Radiation Configuration Factors

Cengel, Y. A. Heat Transfer: A Practical Approach. 2nd ed. Boston, MA: McGraw-Hill, 2002. ISBN: 9780072458930.

1 Modes of heat transfer Chapter 1
2 CONDUCTION: resistances; energy equation Chapter 2
3 Energy equation, Biot number §§ 4.1-4.4
4 Fins § 4.5
5 Lumped capacity § 1.3, §§ 5.1-5.2
6 Transient conduction §§ 5.3-5.5
7 Semi-infinite bodies § 5.6
8 Multidimensional conduction §§ 5.7-5.8
9 Numerical simulation Handout
  Quiz 1 (through Lectures 1-9)  
10 CONVECTION: conservation equations §§ 6.1-6.4
11 Laminar boundary layers §§ 6.5-6.6
12 Integral methods  
13 Internal flows §§ 7.1-7.2
14 Turbulence §§ 6.8-6.9, § 7.3
15 Turbulence, noncircular ducts, crossflows §§ 7.4-7.6
16 Natural convection §§ 8.1-8.4
17 Condensation § 8.5, § 9.9
18 MASS TRANSFER: mixtures, diffusion §§ 11.1-11.3
  Quiz 2 (through Lectures 10-17)  
19 Species conservation, analogy to heat transfer §§ 11.5, 11.7
20 Evaporative cooling §§ 11.8
21 RADIATION: black bodies §§ 1.3, §§ 10.1-10.2
22 View factors §§ 10.3
23 Gray body networks §§ 10.4
24 Spectral surfaces, solar radiation §§ 10.5-10.6
  Final exam (comprehensive)  

Course Info

As Taught In
Fall 2008
Learning Resource Types
Online Textbook