Different Types of Ductwork (with Diagram)
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Different Types of Ductwork (with Diagram)
When you think of the HVAC system in your home, the furnace in your basement or the bulky air conditioner on the side of your house may be what first comes to mind.Or, you might think about the air vents scattered throughout your home, in your kitchen, bedroom, living room, etc.However, have you ever considered the channels that connect those ...
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SOLVED: Air enters a rectangular duct measuring 30 cm x 40 cm with a velocity of 8.5 m/s and a temperature of 40°C. The flowing air has a thermal conductivity of 0.028 W/m-deg, kinematic viscosity of 16.95 x 10^-6 m^2/s, and from empirical correlations, the Nusselt number has been approximated to be 425. Work out the equivalent diameter of the flow passage, the flow Reynolds number, and the convective heat flow coefficient.
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