Consider the cavities formed by a cone, cylinder and sphere having the same opening size (d) and major dimension (L),
Question:
Consider the cavities formed by a cone, cylinder and sphere having the same opening size (d) and major dimension (L), as shown in the diagram.
(a) Find the view factor between the inner surface of each cavity and the opening of the cavity
(b) Find the effective emissivity of each cavity ?e, as defined in Problem 13.42, assuming the inner walls are diffuse and gray with an emissivity of ? w.
(c) For each cavity and wall emissivities of ? w = 0.5, 0.7, and 0.9, plot ?e as a function of the major dimension-to-opening size ratio, L/d, over a range from 1 to 10.
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Related Book For 
Fundamentals of Heat and Mass Transfer
ISBN: 978-0471457282
6th Edition
Authors: Incropera, Dewitt, Bergman, Lavine
Question Details
Chapter #
13
Section: Problems
Problem: 45
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Question Posted: March 02, 2011 06:00:37