Maurice Tutor

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Teaching Since: May 2017
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Education

  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 11 Nov 2017 My Price 7.00

cool electronic devices

Air at 27°C with a free stream velocity of 10 m/s is used to cool electronic devices mounted on a printed circuit board. Each device, 4 mm × 4 mm, dissipates 40 mW, which is removed from the top surface. A turbulator is located at the leading edge of the board, causing the boundary layer to be turbulent.

 

 

(a) Estimate the surface temperature of the fourth device located 15 mm from the leading edge of the board.

 

(b) Generate a plot of the surface temperature of the first four devices as a function of the free stream velocity for 5 ≤ u∞ ≤ 15 m/s.

(c) What is the minimum free stream velocity if the surface temperature of the hottest device is not to exceed 80°C?

Answers

Maurice Tutor
(5)
Status NEW Posted 11 Nov 2017 07:11 PM My Price 7.00

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