Engr Help

Application of Bernoulli Equation

Example 2 Find the pressure, P₁ , needed to produce a flow rate of Q_o from the tank

shown below. Use following data: h = 2 ft, e = 3.6 ft, d = 0.06 ft, Q_o = 0.09 ft³/sec

From Tables of Properties for salt water and gasoline: γ_salt_water= 64.4 lb/ft³, and

γ_gasoline= 42.5 lb/ft³.

Strategy for solution:

Step 1	Identify (draw) the streamline for application of the Bernoulli equation.
Step 2	Select the datum for the elevation, Z. Identify points on the streamline and show known values of P, V, and Z.
Step 3	Write the Bernoulli equation between desired points.
Step 4	Solve for desired values.