Problem 1 Along a 50-m pipeline, there is a half-open globe valve (K = 10), four 90-degree smooth bends (K = 0.45), and six 45-degree elbows (K = 0.15). Ignoring the major head loss, what will be the pressure drop in this pipe if the flow velocity is 1 m/s? Fluid is water: Specific weight = 9810 N/m³. Assume a = 1.0 throughout.

Pipeline AB connects two reservoirs. The difference in elevation between the two reservoirs is 33 ft. The pipeline consists of an upstream section, D1 section, D2 end with a sudden reduction of area. Assume the water temperature is 68°F. Compute the discharge сарacity. = 30 in. and L1 21 in. and L2 = 3,500 ft. The pipes are concrete (smooth) and are connected end to 5,000 ft; and a downstream

Q2: A is 4500 m length-gas flow line, and B is 2000 m length-liquid flow line (0.1 m diameter) both are connected with left side of 2500 m in length C-pipeline (0.15 m). If the pressure at A-pipeline inlet = 2400 kPa, pressure at C-pipeline out let = 2000 kPa, liquid flow rate = 0.009 m³/s, Gas Oil Ratio = 40 m³/m², PL 680 kg/m³, p=0.922 kg/m³, gas flowing temperature-300 K, base temperature-288 K, base pressure 101.3 kPa, Z-0.9, gas gravity 9.4x10-3 Pa.s, calculate the 0.6, gas viscosity-0.015x10³ Pa.s, and liquid viscosity diameter of gas pipeline and inlet pressure of liquid pipeline? Assume all pipes are flat and horizontal. =

5.) A horizontal pipe gradually reduces from 250 mm to 150 mm diameter section, the pressures are 90 kPa and 70 kPa, respectively. If the flow rate is 15 L/s of water, compute the head lost (m) between the two sections.

Water flows in a l-in-diameter pipe at 10 ft/s. If a pitot-static tube of 0.5-in diameter is inserted, what velocity will be indicated? Assume one- dimensional frictionless flow. Find the pitot-static-tube diameter needed reduce the above error to 1 percent.

Reservoirs A and B with water levels at 72 m and 57 m respectively above datum are connected to a junction J located at 43 m above datum. A third pipeline connects a third reservoir with the junction. The pipeline parameters are as follows. Pipe reach Diameter (mm) 400 Length (m) The friction factor for all the pipes may be assumed as f = 0.02. If a pressure gauge at the junction reads 90 kN/m², determine the distribution of discharges in the three pipes and also the water surface elevation in the reservoir C. Neglect local losses. A AJ BJ CJ 800 600 1000 750 850 C +72.00 400 mm 1000 m H, = +43.00 850 m 300 mm 750 m 600 mm B +57.00 Pressure head +elevation head

A circular conduit is to satisfy the following conditions: Capacity when flowing full is 0.13 m³.sec¹, velocity when the depth is one quarter of the diameter is 0.6 m.sec¹¹. Assume the flow is uniform and determine the diameter and the slope of the pipe if you know that Chezy's coefficient is 58 mº.5 sec¹? Answer// D= 460 mm; S= 0.00158

Answer Question 8: the marked choice is the correct answer.

Consider the water distribution network. Given the information below, find the flow rate between A and В. A pipe has an absolute roughness of 0.0008 ft. 1.5 MGD of 50 deg F water (kinematic viscosity is 1.410 x 10-5 ft2/s) enters at junction A and leaves at junction B. The acceptable pressure at point D is 40 psig (280 kPa). Elev. 570 ft A 2000 ft. 10in B Elev. 580 ft 1000 ft. 12in 1100 ft. 10in Elev. 590 ft 1500 ft. 8in Elev. 610 ft

Fluid flows at the rate of 0.272 m/s in a 925 mm diameter pipeline 588 m. long. Specific gravity of fluid is 0.57. Neglecting minor losses and f= 0.012. Compute the head loss in m.   A. 2.684 B. 0.594 C. 3.92 D. 0.064   A system of pipes consists of a 10 inches pipe 2,500 ft. long and an 8 inches pipe 3,600 ft. Long. If Q = 650 gpm and f = 0.013, find the equivaient diameter of the pipes when the pipes are in series.   A. 0.811 ft B. 0.911 ft C. 0.711 ft D. 1.11 ft ft