Thinking Like an Engineer: An Active Learning Approach (4th Edition)
Thinking Like an Engineer: An Active Learning Approach (4th Edition)
4th Edition
ISBN: 9780134639673
Author: Elizabeth A. Stephan, David R. Bowman, William J. Park, Benjamin L. Sill, Matthew W. Ohland
Publisher: PEARSON
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Chapter 9, Problem 5RQ
  1. 5. The Biot number (Bi) is the dimensionless parameter describing if the temperature of an object will vary significantly in space. It depends on the following quantities.

h =  heat transfer coefficient [=] W/(m2 °C)

LC = volume of object/surface area of object [=] m3/m2 =m

k = thermal conductivity [=] W / (m K)

Use your knowledge of dimensions to determine the proper form of the Biot number, choosing from the options below.

  1. A.    B i = h L c k
  2. B.     Bi = hLCk
  3. C.     B i = k L C h
  4. D.    B i = h k L C 2
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Thinking Like an Engineer: An Active Learning Approach (4th Edition)

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