University of South Florida Dynamic Loss Associated with Flow from A Room Question
Question Description
A ductis made of drawn tubing that has an inside diameter of 8 inches. Airflows through the duct at a rate of 500 cfm. The duct is Xft long and lays horizontally. At the duct inlet, the dynamic lossassociated with flow from the room into the duct is K = 0.35. At theduct outlet, the dynamic loss associated with an attached vent is K = 7 *Y – 26.
The density and kinematic viscosity of the air are 0.0753 lbm/ft^3and 1.62E-4 ft^2/s. The surface roughness of the drawn tubing is0.0000015 ft.
- Determine the pressure drop (inches of air) along the duct length.
- Plot the pressure drop (inches of air) as a function of volumetricflow rate (ft^3/min), from 100 to 1000 cfm, in increments of 100 cfm.
- Plot the frictional head loss (inches of air) as a function ofvolumetric flow rate (ft^3/min), from 100 to 1000 cfm, in increments of100 cfm.
- Plot the dynamic head loss (inches of air) as a function ofvolumetric flow rate (ft^3/min), from 100 to 1000 cfm, in increments of100 cfm.
*All plots must be computer-generated*
The number of letters in your first name multiplied by 10 = X
The number of letters in your last name = Y
My name if 5 letters
X = 50
y – 5
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