Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Computer Science Posted 28 Jul 2017 My Price 7.00

attic of a home

Consider the attic of a home located in a hot climate. The floor of the attic is characterized by a width of L1 = 10 m while the roof makes an angle of θ = 30° from the horizontal direction, as shown in the schematic. The homeowner wishes to reduce the heat load to the home by adhering bright aluminum foil (εf = 0.07) onto the surfaces of the attic space. Prior to installation of the foil, the surfaces are of emissivity εo = 0.85.

(a) Consider installation on the bottom of the attic roof only. Determine the ratio of the 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

Answers

Maurice Tutor
(5)
Status NEW Posted 28 Jul 2017 12:07 PM My Price 7.00

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