Problem 2: Control volumes and Bernoulli's equation A large open tank of water is mounted on frictionless wheels as shown in Figure 2. The tank has one orifice on each side. The left orifice is located at a distance h from the free water surface and has a diameter d. The right orifice is located at a distance ah from the free water surface and has a diameter ẞd. αh h Bol V₂ Figure 2: Open tank on wheels. 1. Use Bernoulli's equation to calculate the exit velocities at the left and right orifices, v₁ and V2. 2. Determine an equation relating a and ẞ if the tank does not move.

Q 2/ Calculate the difference between PRESSURE OF COMPRESSED AIR at point A and PRESSURE OF CONFINED WATER at point B located in pipes shown in Figure bellow. (PA- PB). Water B 3 m Water Air 1.5 m Air 1.2 m

A differential pitot tube located at the center of a cylindrical air tube produces 2.6 in. of water pressure. What is the velocity at the impact end of the pitot tube? The impact gauge reads 2.6, 2.6, 2.5, 2.1, 1.8 when placed at points 1-5 in Fig. 3.10. What is the average velocity in the tube? What factor would be applied to the center reading to indi- cate a true average velocity? Note: In actual practice it would be necessary to check this factor through the entire range of velocities to be encountered, because variation may be expected.

Centrifugal pump has differential pressure 15 bar and use to transport oil between two separators. If the pressure at first separator is 4 bar calculate the pressure at second separator and NPSH. Where: Suction and discharge pipe diameters = 10 inch, Suction pipe length = 16 m, ld Oil level at first separator 3 m2d Oil density=880 kg/m³ P Oil flow rate=0.092 m³/sec e Pipe roughness= 0.045 mm Discharge pipe length = 25 m O Oil level at second separator = 5.5 m2d Oil viscosity = 9.5 x 10³ Pa.s Oil vapor pressure 22.5 kPa d кра 4.5x10²

Problem 1 : A water tower holds a total volume of 100,000 L of water (10oC). The diameter of the tank is 6 m. The bottom of the tank (elevation 1030 m) connects to an outlet pipe (diameter 1/2 m) for supplying water to the water main (elevation 990 m). According to the local guidelines, pressure at any point along the water main must be between 30 and 60 psi (including the junction point with the outlet pipe). How will be water tower’s discharge rate (in gpm) be designed?

A structure contains a volume of water, as shown in Figure 1 below. The valve at the bottom of the chamber is opened into a pneumatic chamber. Liquid partially fills the pneumatic chamber as shown. Calculate the pressure inside the pneumatic chamber and calculate the original height of water needed to induce this pressure. (Note that the size of the connecting channel is negligible and can be ignored). а Structure Depth: 6mm 12mm 25mm 4mm 12mm Figure 1

Q.1- The water level, h (t), is controlled by an open -loop system as shown in figure below. A dc motor controlled by an armature current i turns a shaft , opening a valve. The inductance of dc motor is negligible that is, L = 0.Also the rotation friction of the motor shaft and valve is negligible .That is,C=0,The height of the water in the tank is h(t) = [(1.60(1) -h(t)) dt. The motor constant is K=10, the inertia of the motor shaft and valve is J=6x10³ Kg.m² and back e.m.f constant K, = 0.0706V/(rad/s). Determine i-The deferential equation for h(t) and V(t). ii-The transfer function H(s)/V(s). Amplifier 10:41 4.-50 07 Valve MD) 41)

The figure below shows a gasoline storage tank with cross-sectional area Asub1, filled to a depth h. The space above the gasoline contains air at pressure psub0, and the gasoline flows out the bottom of the tank through a short pipe with cross-sectional area Asub2. Derive expressions for the flow speed in the pipe and the  volume flow rate. Thank you!

a pump is delivering 160 liters per sec of water using an impeller diameter of 240 mm and operating at a speed of 1800 rpm. if the speed held constant and the impeller diameter is change to 203.2 mm, what is the new dischange og the pump in liters per second

Problem 2: Compressed Gas Tanks II Consider a compressed gas tank weighing 106 lb, 4.0 ft long, and pressurized to 2200 psig. Assume a = 1 and h/= Ptank/2y. What would happen if this tank were knocked over, creating a ½ in hole, at the end of the tank, through which gas flowed perpendicular to the tank's axis? Part A Draw a sketch of this situation. Make it large, as it will be referenced in your calculations. Part B Write Bernoulli's equation for a streamline connecting Point 1, inside the cylinder, to Point 2, just outside the orifice. Label your sketch so that your figure matches your equation. Part C What is the fluid velocity as the gas exits the tank? (equation) Part D What is the resulting force on the tank? [lb] Part E What can you do to prevent accidents like this? (<25 words)