Transport Phenomena 2

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Transport Phenomena (2)
Taught by ?? (Wei Wu), Associate professor
Department of Chemical Engineering National
Yunlin University of Science and
Technology Yunlin 640, Taiwan, R.O.C.
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Textbooks

• F. P. Incropera and D. P. DeWitt, Fundamentals
  of Heat and Mass Transfer, 4th ed., John Wiley
  Sons, NY (1996).
• J. R. Welty, C. E. Wicks, R. E. Wilson, and G.
  Rorrer, Fundamentals of Momentum, Heat, and Mass
  Transfer, 4th ed., John Wiley Sons, NY (2001).

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Contents

• Steady-state conduction
• Unsteady-state conduction
• Convection
• External flow
• Internal flow
• Fundamentals of mass transfer
• Steady-state diffusion

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Chapter 1 Steady-state conduction

• Extended surfaces

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• Fins with uniform cross sectional area

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• Fin efficiency

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• Fin heat rate with tip convection

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• Fins with non-uniform cross sectional area
• Consider the annular fin with and

Using the differential equation
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With boundary conditions, yields
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• Fin arrays

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Where is overall surface efficiency and
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Example 1
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• ? Exercises
• 3.98, 3.100, 3.128 (Textbook 1 Incropera)
• 17.3 section, p.236243 (Textbook 2 Welty)