(a) Water, at 20°C, is being siphoned from a large container through a constant diameter hose, as shown in Figure 3a. The end of the siphon is 2 m below the bottom of the tank. There is no losses along the tube and atmospheric pressure is 101.3 kPa. Determine the maximum hill height, H, over which the water can be siphoned without cavitation occurring. H 5.0 m 2.0 m Figure 3a

Water at 15 degrees Celsius is flowing through a 2-in ID smooth pipe. The friction loss for a 100-ft section of the pipe amounts to 4.8 lbf/lbm. Determine the velocity of the flow.

On a trip to the beach (Patm 1 atm or 101.3 kPa), a car runs out of gasoline and it is necessary to siphon gasoline from a Good Samaritan's car. The siphon is a hose with a small diameter and to start the action it is necessary to insert one end into the tank full of gasoline, fill the hose with it through suction and then put the other end in a can that is placed under the tank level. The difference in pressure between point 1 (on the free surface of the gasoline in the tank) and point 2 (at the outlet of the tube) causes the liquid to flow from the highest elevation to the lowest. In this case, point 2 is located 0.75 m below point 1, and point 3 is 2 m above 1. The siphon diameter is 4 mm and friction losses in it must be ruled out. Determine: a) theminimum time to bring 4 L of gasoline from the tank to the can and b) the pressure at point 3. The density of the gasoline is 750 kg / m3.

Water flows through an orifice at the vertical side of a closed cylindrical tank. The water level inside the tank remains constant at 3m and the pressure at the top of the tank is 30KPa. If the jet strikes the ground horizontally by 4.5m and below the vena contracta by 1m, determine the coefficient of velocity.

Oil with specific gravity of 0.87 is being pumped from a reservoir to an elevated tank as shown below. The pump in the system is 80% efficient and is rated at 240 kW (i.e. Pp is 240 kW). Determine the flow rate of oil in the pipe if the total head loss from point 1 to point 2 is 12 m of oil. Point 2 represents the exit of the pipe. Reference line is the ground level. The stopping error ɛs is 3%. You should maximum have 2 iterations after the first value. Elev. 2 50 200-mm-diameter pipe Pump -160-mm -diameter pipe -Elev. 150 m Oil

Water flows through a corner valve at a flow rate of Q=0.75 m³/s . The pressure just upstream of the valve is P₁ = 500 kPa and the pressure just downstream is P₂ = 300 kPa. The inside pipe diameters of the valve inlet and exit are respectively, D₁ = 5 cm and D₂ = 12 cm. If the flow through the valve occurs in a horizontal plane, determine the head loss, h₂ (in meters) and the rate of loss of available energy (in W) across the valve. D2 Di

Tank 1 Tank 2 g Question 1 Consider the flow of water (p= 10³ kg/m³, u = 10³ Pa-s) from tank 1 to tank 2. A centrifugal pump is installed in this piping system with length L = 300 m and diameter D = 40 cm cast-iron pipe. The water surface of tank 1 is 15 m higher than the water surface of tank 2. You may neglect minor losses but not major losses. The gravity cannot be neglected. Assume steady-state and no friction in the tanks. (a) Simplify the equation of the system curve Ap vs Q. Do not place numerical data. (b) Plot the system curve Ap vs Q (0 ≤Q≤2 m³/s). (c) Find the volumetric flow rate when the pump is not operating. (d) Find the power supplied to the water and to the pump if n = 0.9 and 1 m³/s. (e) Consider a pump: Ap = 106 105 Q², where Ap in Pa and Q in m³/s. Find the operating point. What is the minimum and maximum volumetric flow rate that this pump can deliver?

As shown in figure below, oil can be siphoned from a tank using a flexible hose, provided that the end of the hose at Point B, is below the free surface in the tank at Point A. The maximum elevation of the hose is at Point C. Oil is being siphoned from the tank through a constant-diameter hose. The end of the siphon at Point B is 6.71 meters below the oil top surface level of the tank at Point A. If the gauge pressure at Point C is 90.257 KPa and the density of oil is 890 fraction numerator k g over denominator m cubed end fraction , the vertical distance between Point C and Point B in meters is