Apitot tube system measures the static pressure in 50 cm diameter duct containing air (\rho\: =rho =1.1 kg/m3) as 97 kpa and the impact pressure as 100 kpa. what is the air velocity?

The velocity in duct is 73.854 m/s.

Explanation:

Given that Pitot tube measuring velocity v in 50 cm diameter duct contain air of density 1.1 .

Also, P1 = Pressure in duct is 97kpa and P2 = Pressure at impact or stagnation point is 100kpa.

Using Bernoulli equation,

When air is flowing through duct,

When air is at stagnation point.

Comparing both the equation,

v=73.854 m/s.

Therefore, The velocity in duct is 73.854 m/s.

divide the right side by the left side

0.024÷1.2=0.02 for example

at positions a, g kinetic energy is maximum.

at position d, potential energy is maximum.