A desktop computer is to be cooled by a fan. The electronic components of the computer consume 60 W of power under full load conditions. The computer is to operate in environments at temp. up to 45° C and at elevations up to 3400 m where the average atmospheric pressure is 66.63 KPa, air density at this condition 0.73 kg/m³. The exit temp. of air is not to exceed 60° C, air density of 0.7 kg/m³, to meet reliability requirements. Also the average velocity of the air is not to exceed 110 m/min at the exit of the computer case where the fan is installed to keep the noise level down. Assume that there is an increase in internal energy of 10.779 kj/kg. Determine the flow rate of the fan that needs to be installed and the diameter of the casing of the fan.
A desktop computer is to be cooled by a fan. The electronic components of the computer consume 60 W of power under full load conditions. The computer is to operate in environments at temp. up to 45° C and at elevations up to 3400 m where the average atmospheric pressure is 66.63 KPa, air density at this condition 0.73 kg/m³. The exit temp. of air is not to exceed 60° C, air density of 0.7 kg/m³, to meet reliability requirements. Also the average velocity of the air is not to exceed 110 m/min at the exit of the computer case where the fan is installed to keep the noise level down. Assume that there is an increase in internal energy of 10.779 kj/kg. Determine the flow rate of the fan that needs to be installed and the diameter of the casing of the fan.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A desktop computer is to be cooled by a fan. The electronic components of the computer
consume 60 W of power under full load conditions. The computer is to operate in
environments at temp. up to 45° C and at elevations up to 3400 m where the average
atmospheric pressure is 66.63 KPa, air density at this condition 0.73 kg/m³. The exit temp. of
air is not to exceed 60° C, air density of 0.7 kg/m³, to meet reliability requirements. Also the
average velocity of the air is not to exceed 110 m/min at the exit of the computer case where
the fan is installed to keep the noise level down. Assume that there is an increase in internal
energy of 10.779 kj/kg. Determine the flow rate of the fan that needs to be installed and the
diameter of the casing of the fan.
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