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A desktop computer is to be cooled by a fan whose flow
Chapter 5, Problem 9P(choose chapter or problem)
Problem 9P
A desktop computer is to be cooled by a fan whose flow rate is 0.40 m3/min. Determine the mass flow rate of air through the fan at an elevation of 3400 m where the air density is 0.7 kg/m3. Also, if the average velocity of air is not to exceed 110 m/min, determine the minimum diameter of the casing of the fan.
Questions & Answers
QUESTION:
Problem 9P
A desktop computer is to be cooled by a fan whose flow rate is 0.40 m3/min. Determine the mass flow rate of air through the fan at an elevation of 3400 m where the air density is 0.7 kg/m3. Also, if the average velocity of air is not to exceed 110 m/min, determine the minimum diameter of the casing of the fan.
ANSWER:
ANSWER:
Step 1:-
The air density at a height of 3400 m is .
Mass flow rate of the man is,
.
The mass flow rate is,