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Answer: A desktop computer is to be cooled by a fan whose
Chapter 5, Problem 512(choose chapter or problem)
A desktop computer is to be cooled by a fan whose flow rate is . Determine the mass flow rate of air through the fan at an elevation of 3400 m where the air density is . Also, if the average velocity of air is not to exceed , determine the diameter of the casing of the fan.
Questions & Answers
QUESTION:
A desktop computer is to be cooled by a fan whose flow rate is . Determine the mass flow rate of air through the fan at an elevation of 3400 m where the air density is . Also, if the average velocity of air is not to exceed , determine the diameter of the casing of the fan.
ANSWER:
Step 1 of 3
A desktop computer is to be cooled by a fan at a high elevation where the air density is low. The mass flow rate of air through the fan and the diameter of the casing for a given velocity are to be determined.
We assume that flow through the fan is steady.
The density of air at a high elevation is given to be .