can you please work all the parts please please A square (12.5 mm × 12.5 mm) silicon chip is insulated on one side and cooled on the opposite side by atmospheric air in parallel flow atU = 20 m/s and To 24°C. When in use, electrical power dissipation within the chip maintains a uniform heat flux at the cooledsurface. Assume the critical Reynolds number is 5x105.(a) If the chip temperature may not exceed 80°C at any point on its surface, what is the maximum allowable power, in W?W9max,a==(b) What is the maximum allowable power, in W, if the chip is flush mounted in a substrate that provides for an unheated startinglength of 22.5 mm?9max,bPhysical Properties Mathematical Functions=W

Answered: Image /qna-images/answer/0ed1239a-02f6-42a3-a627-eec0998cc6fa.jpg

(a) If the chip temperature may not exceed 80°C at any point on its surface, what is the maximum allowable power, in W? 9max.a = i W (b) What is the maximum allowable power, in W, if the chip is flush mounted in a substrate that provides for an unheated starting length of 22.5 mm? 9max.b = i W

(a) If the chip temperature may not exceed 80°C at any point on its surface, what is the maximum allowable power, in W? 9max.a = i W (b) What is the maximum allowable power, in W, if the chip is flush mounted in a substrate that provides for an unheated starting length of 22.5 mm? 9max.b = i W

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

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Chapter7: Forced Convection Inside Tubes And Ducts

Section: Chapter Questions

Problem 7.8P

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Question

can you please work all the parts please please

A square (12.5 mm × 12.5 mm) silicon chip is insulated on one side and cooled on the opposite side by atmospheric air in parallel flow at
U = 20 m/s and To 24°C. When in use, electrical power dissipation within the chip maintains a uniform heat flux at the cooled
surface. Assume the critical Reynolds number is 5x105.
(a) If the chip temperature may not exceed 80°C at any point on its surface, what is the maximum allowable power, in W?
W
9max,a
=
=
(b) What is the maximum allowable power, in W, if the chip is flush mounted in a substrate that provides for an unheated starting
length of 22.5 mm?
9max,b
Physical Properties Mathematical Functions
=
W

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