Consider the attic of a home located in a hot climate. The floor of the attic is characterized by a width of
(a) Consider installation on (lie bottom of the attic roof only. Determine the ratio of (lie radiation heat transfer after to before the installation of the foil.
(b) Determine the ratio of the radiation heat transfer after to before installation if the foil is installed only on the top of the attic floor.
(c) Determine the ratio of the radiation heat transfer if the foil is installed on both the roof bottom and the floor top.
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Fundamentals of Heat and Mass Transfer
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