Darcy-Weisbach
A 200mm diameter pipeline,5000m long and of effective roughness 0.03mm delivers water between reservoirs the minimum difference in water level between which is 40m.
a) Taking only friction,entry and velocity head losses into account,determine the steady discharge between the reservoirs.
b)If the discharge is to be increased to 5 l/s without increase in gross head determine the length of 200mm diameter pipeline of effective roughness 0.015mm to be fitted in parallel.Consider only friction losses.
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(b) Water flows under gravity between two reservoirs through a pipe of length 5000m. The diameter of the pipe is 0.2 m...
(b) Water flows under gravity between two reservoirs through a pipe of length 5000m. The diameter of the pipe is 0.2 m and the roughness size is 0.04 mm. The water levels in the two reservoirs are maintained with a difference of 50 m. Determine the discharge through the pipe. Neglect all minor losses. Use the attached Moody diagram for estimation of friction factor. (10 marks) (c) In (b), now include entry loss at the upper reservoir with loss coefficient...
Water flows from one large reservoir to another via a pipeline which is 0.9 m in...
Water flows from one large reservoir to another via a pipeline which is 0.9 m in diameter, 15km long, and for which f-0.04. The difference in height between the water surface levels in the two reservoirs is 50m. (a) Ignoring the minor losses in the pipeline, calculate the flow rate between the two reservoirs. (b) Assuming that the pipeline entrance and exit are sharp and that the minor losses are as in Table 1, calculate the discharge now. What is...
Question a. Two reservoirs are connected together by a pipeline which is 200 mm in diameter...
Question a. Two reservoirs are connected together by a pipeline which is 200 mm in diameter and 2000 m long for which the friction factor f, is constant and equal to 0.0045. The head difference between the reservoirs is 25 m and remains constant. Under these conditions, determine the flow in the pipeline. Minor losses can be ignored, however the rejected kinetic energy should be taken into account. b. In this case, is the rejected kinetic energy worth taking into...
ENCE 4322/53222 2. Reservoir A delivers to reservoir B through two uniform pipelines AJ (3000 m...
ENCE 4322/53222 2. Reservoir A delivers to reservoir B through two uniform pipelines AJ (3000 m long) and JB (4000 m long) of diameters 300 mm and 200 mm, respectively. The difference in elevation between the water level in the two reservoirs is 25 m. Just upstream of the change in section, which is assumed gradual (no minor losses), a controlled discharge of 30 L/s is taken off 3000 m 304 Assume kinematic viscosity - 1.14x10m/s, and a pipe effective...
Problem 3 A pipeline delivers water from Reservoir 1 to Reservoir 2 as shown in the following figure. The water levels at Reservoirs 1 and 2 are 50 ft and 20 ft, respectively. A globe valve is in...
Problem 3 A pipeline delivers water from Reservoir 1 to Reservoir 2 as shown in the following figure. The water levels at Reservoirs 1 and 2 are 50 ft and 20 ft, respectively. A globe valve is installed in the pipeline with a minor head loss coefficient k 10. The pipe from Reservoir 1 to the globe valve is 1000 ft long and 6 inches in diameter. The pipe from the globe valve to Reservoir 2 is also 1000 ft...
2. Water flows at a rate of 60 L/s from a main reservoir to a subsidiary...
2. Water flows at a rate of 60 L/s from a main reservoir to a subsidiary through a 600 m long, 185 mm diameter asphalted cast iron pipe as shown in the figure. The pipeline contains a gate valve, a globe valve and 4 standard 90° elbows. The entrance and exit are square edged, and all fittings are screwed ends, determine, You need Kinematic viscosity of water, 1 x 10-6 m/s2 (a) The friction head loss in the pipe, (b)...
Problem 1: In the reservoir-pipe system below, water is supplied from reservoir A to reservoir B...
Problem 1: In the reservoir-pipe system below, water is supplied from reservoir A to reservoir B with a flowrate of 50 L/S. In the system, a pump with an efficiency value of n=0.70 is used. Length of the pipeline is L=5000m, pipe diameter is D=200 mm and the elevation difference between reservoirs is 40 m. According to this, a) Determine the required pump head (Hp). b) Find the required nominal pump power. c) Draw the relative energy grade line of...
(b) Water flows under gravity through a pipeline connecting two reservoirs as shown in Figure 2....
(b) Water flows under gravity through a pipeline connecting two reservoirs as shown in Figure 2. The pipeline consists of 2 km of pipe diameter 400 mm and sand roughness equivalent 0.03 mm followed by an abrupt change to 3 km of 500 mm diameter pipe of sand roughness equivalent 0.08 mm. The pipe discharges as a free jet into a reservoir. The difference in elevation between the water surface of the upstream reservoir and the discharging jet is 21...
3. (a) For the flow of a real fluid (p, u) in a rough (e measures losses lead to a pressure gradient along the pipe - A...
3. (a) For the flow of a real fluid (p, u) in a rough (e measures losses lead to a pressure gradient along the pipe - Ap/L. Determine an expression for the pressure roughness) horizontal pipe energy Ap ( L pV2 gradient for a pipe of diameter - d, flowing with a mean velocity - V. pVd'd d (b) If for a 75mm diameter pipe flowing with water at 0.25m/s the measured pressure drop is 120Pa/m What will be the...
The hydraulic head loss in a pipe may be determined by the Darcy-Weisbach Equation as follows: H=(f*L*V^2)/(2*D*g) Where...
The hydraulic head loss in a pipe may be determined by the Darcy-Weisbach Equation as follows: H=(f*L*V^2)/(2*D*g) Where L is the length of the pipe, V is the follow velocity of water in a pipe, D is the pipe diameter, f is the coefficient of friction and g is the gravitational acceleration (32.2 ft/sec^2) Suppose the length of the pipe L has a constant length of 10 ft and the pipe has a constant diameter of .5 ft. The coefficient...
(b) Water flows under gravity between two reservoirs through a pipe of length 5000m. The diameter of the pipe is 0.2 m and the roughness size is 0.04 mm. The water levels in the two reservoirs are maintained with a difference of 50 m. Determine the discharge through the pipe. Neglect all minor losses. Use the attached Moody diagram for estimation of friction factor. (10 marks) (c) In (b), now include entry loss at the upper reservoir with loss coefficient...
Water flows from one large reservoir to another via a pipeline which is 0.9 m in diameter, 15km long, and for which f-0.04. The difference in height between the water surface levels in the two reservoirs is 50m. (a) Ignoring the minor losses in the pipeline, calculate the flow rate between the two reservoirs. (b) Assuming that the pipeline entrance and exit are sharp and that the minor losses are as in Table 1, calculate the discharge now. What is...
Question a. Two reservoirs are connected together by a pipeline which is 200 mm in diameter and 2000 m long for which the friction factor f, is constant and equal to 0.0045. The head difference between the reservoirs is 25 m and remains constant. Under these conditions, determine the flow in the pipeline. Minor losses can be ignored, however the rejected kinetic energy should be taken into account. b. In this case, is the rejected kinetic energy worth taking into...
ENCE 4322/53222 2. Reservoir A delivers to reservoir B through two uniform pipelines AJ (3000 m long) and JB (4000 m long) of diameters 300 mm and 200 mm, respectively. The difference in elevation between the water level in the two reservoirs is 25 m. Just upstream of the change in section, which is assumed gradual (no minor losses), a controlled discharge of 30 L/s is taken off 3000 m 304 Assume kinematic viscosity - 1.14x10m/s, and a pipe effective...
Problem 3 A pipeline delivers water from Reservoir 1 to Reservoir 2 as shown in the following figure. The water levels at Reservoirs 1 and 2 are 50 ft and 20 ft, respectively. A globe valve is installed in the pipeline with a minor head loss coefficient k 10. The pipe from Reservoir 1 to the globe valve is 1000 ft long and 6 inches in diameter. The pipe from the globe valve to Reservoir 2 is also 1000 ft...
2. Water flows at a rate of 60 L/s from a main reservoir to a subsidiary through a 600 m long, 185 mm diameter asphalted cast iron pipe as shown in the figure. The pipeline contains a gate valve, a globe valve and 4 standard 90° elbows. The entrance and exit are square edged, and all fittings are screwed ends, determine, You need Kinematic viscosity of water, 1 x 10-6 m/s2 (a) The friction head loss in the pipe, (b)...
Problem 1: In the reservoir-pipe system below, water is supplied from reservoir A to reservoir B with a flowrate of 50 L/S. In the system, a pump with an efficiency value of n=0.70 is used. Length of the pipeline is L=5000m, pipe diameter is D=200 mm and the elevation difference between reservoirs is 40 m. According to this, a) Determine the required pump head (Hp). b) Find the required nominal pump power. c) Draw the relative energy grade line of...
(b) Water flows under gravity through a pipeline connecting two reservoirs as shown in Figure 2. The pipeline consists of 2 km of pipe diameter 400 mm and sand roughness equivalent 0.03 mm followed by an abrupt change to 3 km of 500 mm diameter pipe of sand roughness equivalent 0.08 mm. The pipe discharges as a free jet into a reservoir. The difference in elevation between the water surface of the upstream reservoir and the discharging jet is 21...
3. (a) For the flow of a real fluid (p, u) in a rough (e measures losses lead to a pressure gradient along the pipe - Ap/L. Determine an expression for the pressure roughness) horizontal pipe energy Ap ( L pV2 gradient for a pipe of diameter - d, flowing with a mean velocity - V. pVd'd d (b) If for a 75mm diameter pipe flowing with water at 0.25m/s the measured pressure drop is 120Pa/m What will be the...
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