Air at 35°C, 105 kPa flows in a 100-mm × 150-mm

Chapter 4, Problem 12HP

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QUESTION:

Problem 12HP

Air at 35°C, 105 kPa flows in a 100-mm × 150-mm rectangular duct in a heating system. The mass flow rate is 0.015 kg/s. What are the velocity of the air flowing in the duct and the volume flow rate?

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QUESTION:

Problem 12HP

Air at 35°C, 105 kPa flows in a 100-mm × 150-mm rectangular duct in a heating system. The mass flow rate is 0.015 kg/s. What are the velocity of the air flowing in the duct and the volume flow rate?

ANSWER:

Solution  12HP

Step 1 of 3

We have to find the velocity of the air flowing in the duct and the volume flow rate.

The volume flow rate of air flowing through a duct can be found using the expression.

Where,

mass flow rate = 0.015 kg/s

specific volume of air in kg/m3

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