A 15 cm diameter pipe carries a flow of 70 litres per second of an oil (sp.gr = 0.75). At a section %3D 12 cm above the datum, there is vacuum of 2 cm of mercury. If the kinetic energy correction factor for this section is 1.1 the total head at the section of oil is:
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- a horizontal 24" pipeline carries oil of sp gr. 0.825 flowing at a rate of 15.7 cfs. Each of four pumps required along the line is the same, i.e., the pressure on the suction side and on the discharge side will be -8.0 psi and +350 psi, respectively. If the lost head at the discharge stated is 6.0 ft for each 1000 ft of pipe, how far apart may pumps be placed? Ans. 167,000 ftA closed tank contains liquified butane gas whose specific gravity is 0.60. The tank pressure is 1.7 Mpa gage which is also the equilibrium vapor pressure of butane at the pumping temperature. Suction lines losses is 1.5m of gas and the static elevation gain is 4m. What is the NET POSITIVE SUCTION HEAD AVAILABLE?(NPSHa)a 4m tank is inclined at 45 degrees with the horizontal. distance of center of orifice to the lower end of the tank is 2.7m. If Cv=1, Find the max height that the jet will reach
- At point A where the suction pipe leading to a pump is 2.50 meters below the pump an open manometer indicates a vacuum of 9 in. of mercury. The pipe is 125 mm in diameter, the discharge is 35 liters per second of oil (sp. gr. = 0.80). Compute the total head at point A with respect to a datum at the pump.A horizontal pipe of 150 mm diameter for the initial 30 m and 75 mm dimeter for the remaining 10 m is connected to a water tank. The height of waler in tank is 15 m above the centre line of the pipe. Find out the flow rate through the pipe, taking all losses into the account. Consider the reduction in diameter of the pipe as sudden coefficient of friction for the pipe is 0.008.A 0.1m-Φ x 0.094m solid cylinder weighs 4 Newton. It is submerged in a liquid (SG = 0.8328) which is contained in a larger cylindrical tank whose diameter is 0.125m. Before immersion, the depth of the liquid was 0.075m. At what level will the solid cylinder float?
- A boiler feed booster pump supplies 0.0373 m3 /s of water at 1500 rpm. Its suction speed is 3.5 and net positive suction head available is 5m. Find safety margin of cavitation.A closed tank has an orifice in the vertical side with diameter of 70mm. Thehead of oil having a specific gravity of 0.92 is 2m above the orifice. If there isa pressure of 15kpa at the top of the oil surface inside the tank, compute theheadloss in the orifice with Cv = 0.96.(b) A horizontal pipe is diverted upwards with an angle of 25 degrees. Water enters with a velocity of 4.5 ms-1 and exits upwards. The pipe entrance has a diameter of 200 mm and increases two times at the outlet. The inlet gauge pressure reads 80 kPa. If the difference vertical distance between inlet and outlet is 0.4 m, calculate the magnitude and direction of the resultant force on the pipe bend. Neglect energy losses and take the volume of water to be 0.18 m3
- Benzene at 60°C is flowing in a DN 25 Schedule 80 steel pipe at the rate of 20 L/min. The specific weight of the benzene is 8.62 kN/m³. Calculate the pressure dif- ference between two points 100 m apart if the pipe is horizontal.A main pipe distributing water has a diameter of 158 mm and is distributed into three outlets. Thefirst outlet has a velocity rate of 10m/s and a diameter of 50mm. The second outlet has a velocity rate of11m/s and a diameter of 75mm. The third outlet has a flow rate of 0.265619 m^3/s moving at avelocity of 15m/s. if the pressure head in the larger diameter part is 28 ft. a) determine thepressure head at the smaller diameter. b) what is the velocity head of the larger pipe? c) what is the velocityhead of the smaller pipe? d) What is the total head in the system?the system consists of 1000m of 50mm cast iron pipe, two 45° and 4 90° flanged long radius elbows, a fully open flanged globe valve, and a sharp exit into a reservoir. Water flows at rate of 4.5 L/s from pt. 1 to the reservoir whose free surface lies 100m above pt.1. Kinematic viscosity is 1.02x10^-6 sqm/s and f=0.035. compute for: a.) reynolds number b.) total head lossv(m) c.) gage pressure at 1 to deliver water into the reservoir (kPa)