Example 9-2
Ploblem: Water at 60 F is pumped through a pipe with a 2-in. inside diameter at a flow velocity of 2.0 ft/s. Find the volumetric flow and the mass flow. The density (p) of water is 62.4 ib/ft3 at 60 F
Solution: The flow velocity is given as 2.0 ft/s, so the volumetric flow can be found as follows:
Q=A
The area of the pipe is given by the following:
A=d4
so that
A =
The volumetric flow is as follows:
Q=Av
The mass flow rate is. found uisng equation 9-22:
where
p = density in pounds per cubic foot
D = the pipe inside diameter, is in inches