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- The ethanol solution is pumped into a vessel 25 m above the reference point through a 25 mm diameter steel pipe at a rate of 8 m3 / hr. The pipe length is 40 m and there are 2 elbows. Calculate the power requirements of the pump. The properties of the solution are density 975 kg / m3 and viscosity 4x 10-4 Pa s. a. Reynold number = Answer. b. Loss of Energy along the straight pipe = AnswerJ / kg. c. Losing Energy at curves = AnswerJ / kg. d. Total energy to overcome friction = AnswerJ / kg. e. Energy to increase water according to height = AnswerJ / kg. f. The theoretical energy requirement of the pump ethanol / second = AnswerJ / kg. g. Actual pump power requirement = Answerwatt.arrow_forwardA venturimeter with a 10.16cm throat is installed in a 15.24cm pipe which is inclined upward at an angle of 45 degrees to the horizontal. If the distance between pressure taps along the pipe is 1.5, the difference in pressure is 70 kPa, and the water temperature is 70oC, what is the discharge of water in m3/sec? Assume coefficient of 0.985.arrow_forwardShow complete solution and formulas used. Show the schematic diagram too. Calculate the required pipe diameter to avoid cavitation, if the pump delivers Q = 30US gallon/min water from a closed tank, where the pressure (above the water level) is p = 40kPa. The equivalent length of the smoothened concrete pipe on the suction side is 12m while the suction flange of the pump is 8m below the water level. The vapour pressure at the given water temperature is 2.8kPa. The required net positive suction head is NPSHr = 3.2m.arrow_forward
- Problem 3: An orifice of 8 cm diameter is fitted in a 20 cm diameter pipe that carries oil of specific gravity 0.8. The mercury manometer attached to the orifice shows a reading of 0.75 m. Calculate the oil flow rate through the pipe. Assume coefficient of discharge for orifice as 0.6. Ans: Q= 0.047 m³/ sec.arrow_forward1. in a section of horizontal piper with a diameter of 3cm the pressure is 5.21 kpa and water is flowing with a speed of 1.50m/s. the pipe narrows to 2.50cm. what is the pressure in the narrower region if water behaves like an ideal fluid of sensity 1000kg/m3 2. tensile stress a. the ratio of elasic modules to strain b. the applied force per crosssectional area c. the ratio of change in length to the orig length d. the strain per unit legth e. the same as forcearrow_forwardThe ethanol solution is pumped into a vessel 25 m above the reference point through a 25 mm diameter steel pipe at a rate of 10 m3 / hr. The pipe length is 35m and there are 2 elbows. Calculate the power requirements of the pump. The properties of the solution are density 975 kg / m3 and viscosity 4x 10-4 Pa s. a. Reynold number = Answer b. Loss of Energy along the straight pipe = Answer J / kg. c. Losing Energy at curves = Answer J / kg. d. Total energy to overcome friction = Answer J / kg. e. Energy to increase water according to height = Answer J / kg. f. The theoretical energy requirement of the pump ethanol / second = Answer J / kg. g. Actual pump power requirement = Answer watt.arrow_forward
- A venturi meter of 20 mm throat diameter is used to measure. The velocity of water in a horizontal pipe of 40 mm diameter. If the pressure difference between the pipe and the throat sections is found to be 30 KPa then, neglecting frictional losses, the flow velocity is?arrow_forwardSAMPLE PROBLEMS #3 A venturi meter with a 10.16 cm throat is installed in a 15.24 cm pipe which is inclined upward at an angle of 45 degrees to the horizontal. If the distance between pressure tape along the pipe is 1.5 m, the differential pressure is 70 kPa, and the water temperature is 70°C, what is the discharge of water in m'/sec? Assume coefficient of 0.985.arrow_forwardProblem 3: An orifice of 8 cm diameter is fitted in a 20 cm diameter pipe that carries oil of specific gravity 0.8. The mercury manometer attached to the orifice shows a reading of 0.75 m. Calculate the oil flow rate through the pipe. Assume coefficient of discharge for orifice as 0.6. Ans: Q= 0.047 m/ sec. Problem 4:arrow_forward
- Show complete solution with diagram: A 3.81-cm diameter venturi meter is installed in a pipe with an internal diameter of 10.23 cm. A 127 cm manometer filled with mercury is used to measure the pressure difference across the venturi meter. If the manometer reads 101.6 cm when 15 °C water is flowing through the pipe, what is the flow rate of water (m3/min)? Assume that the venturi meter coefficient of discharge equals 0.98.arrow_forwardThe pressure drop in a horizontal commercial steel pipe should not exceed 1 psi per 150 feet of pipe length for flow rates up to 500 gal/min. If the water temperature is never below 50 F°, determine the necessary pipe diameter.arrow_forwardQ2/ A fluid containing (water, oil, sand) flowing through the tube and open to the atmosphere as shown in the figure below... Note that p° = 1.013*10$ Pa Calculate the absolute pressure (Pa). Density: Pwater = 1000 kg/m³ Poil = 800 kg/m' Psand = 200 kg/m' %3D h3=12 cm oiL Pa hi=5 cm h2=6 cm !3! →Sand waterarrow_forward
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