Question

Consider a pitot tube being used to measure air velocity in a heating duct. The air is at 85 ^oF and 16 psia. The pitot tube registers a pressure difference of 0.021 inches of water. The Pitot tube coefficient is 0.97. Draw a diagram and

(a) Calculate the velocity of the air at that point in the duct.

(b) If the tube is inserted at the middle of the duct with a diameter of 2 ft, calculate the volumetric flow rate of air.

Answer 1