• Assume that the water main has a huge diameter, such that the water velocity is effectively zero in the main - it only speeds up when it enters the skinny pipe going into your house or apartment. • Assume that the pipe in your house has about the same diameter as your hose • Assume that the water main is 1m underground, and located about 100 ft. from the spigot that your hose attaches to. • Assume that your hose and the pipe in your house has an internal diameter of 1.5cm. Based on where the water is hitting the ground, calculate what the water velocity is coming out of the hose for the different heights. First write a general equation for the water velocity based on d and h, and then solve for it for the different hose heights shown in the pictures. Hint: The water path behaves like that of any other object thrown through the air. You may want to review projectile motion equations from PHYS 111. Data point 1: the lowest height. OO Find the distance for data point 1. Markings are for meters.

• Assume that the water main has a huge diameter, such that the water velocity is effectively zero in the main - it only speeds up when it enters the skinny pipe going into your house or apartment. • Assume that the pipe in your house has about the same diameter as your hose • Assume that the water main is 1m underground, and located about 100 ft. from the spigot that your hose attaches to. • Assume that your hose and the pipe in your house has an internal diameter of 1.5cm. Based on where the water is hitting the ground, calculate what the water velocity is coming out of the hose for the different heights. First write a general equation for the water velocity based on d and h, and then solve for it for the different hose heights shown in the pictures. Hint: The water path behaves like that of any other object thrown through the air. You may want to review projectile motion equations from PHYS 111. Data point 1: the lowest height. OO Find the distance for data point 1. Markings are for meters.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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PROBLEM 02: Water entering a pump through an 200mm diameter pipe at 27.6 kPa has a flow rate of 0.1 m^3/s. It leaves the pump through a 100mm diameter pipe at 103.4 kPa. Assuming that the suction and discharge sides of the pump are at the same elevation, find the horsepower delivered to the water by the pump (746 watts = 1 HP). Illustrate the problem and show your complete solution.
Water is drawn from a reservoir, in which the water level is 240 m above datum, at the rate of 0.13 m3/sec. The outlet of the pipeline is at datum level and is fitted with a nozzle to produce a high-speed jet to drive a turbine of the Pelton wheel type. If the velocity of the is 66 m/sec, calculate a) The power of the jet, b) The power supplied from the reservoir, c) The head used to overcome losses, d) The efficiency of the pipeline and nozzle in transmitting power.
2. Water from an open reservoir A at 8m elevation is drawn by a motor-driven pump to an open reservoir B at 70m elevation. The inside diameter of the suction pipe is 200mm and 150mm for the discharge pipe. The suction line has a loss of head three times that of the velocity head in the 200mm pipe. The discharge line has a loss of head 20 times that of the velocity head of the discharge pipeline. The pump centerline is at 4m. Overall efficiency of the system is 78%. For a discharge rate of 10 li/s, find the power input to the motor.
Suppose that you are willing to determine the diameter of the water jet impinging to the sink from the kitchen tap.The tap is produced to supply three different flow rates of the low, medium, and high. For each flow rate level, waterthat comes from the tap fills the beaker with a volume of 30 mL in 10 s, 6 s, and 2 s, respectively. The outlet of the tapis 13 mm, and the distance between the tap outlet and the sink is 53 mm. Determine the diameters of the water jetimpinging on the sink at three given flow rates.
The impeller diameter of a centrifugal pump used in water pumping is 250 mm, the inlet radius of the water to the impeller blades is 25 mm, and the outlet radius is 10 mm. The inlet angle of water to the blade is 30°, and the outlet angle from the blade is 25°. The blade inlet width is 10 mm, and the outlet width is 5 mm. Given that the pump's rotation speed is 1800 rpm; a) Find the flow rate of the water passing through the pump?b) Find the required shaft power for the pump under ideal conditions?c) Find the pump's discharge head under ideal conditions?
A pump takes water at 60°F from a large reservoir and delivers it to the bottom of an open elevated tank 25 ft above the reservoir surface through a 3 inch ID pipe. The inlet to the pump is located 10 ft below the water surface, and the water level in the tank is constant at 160 ft above the reservoir surface. The pump delivers 150 gal/min. If the total loss of energy due to friction in the piping system is 35 ft·lbf/lb. The pump and its motor have an overall efficiency of 55 %. i. Determine Delta Z (Z2 - Z1) in ft. ii. What is the actual shaft work needed for this particular mass flow rate in (ft-lbf)/s. iii. What is the mass flow rate of the water in lbm/s?
A pump takes water at 60°F from a large reservoir and delivers it to the bottom of an open elevated tank 25 ft above the reservoir surface through a 3 inch ID pipe. The inlet to the pump is located 10 ft below the water surface, and the water level in the tank is constant at 160 ft above the reservoir surface. The pump delivers 150 gal/min. If the total loss of energy due to friction in the piping system is 35 ft·lbf/lb. The pump and its motor have an overall efficiency of 55 %. answer the ff: i. Determine the velocity of the water at point 2. ii. Reynolds number for the flow. iii. A pump efficiency of 55% means that the theoretical work needed for the process is 55% of the actual work needed. In other words, 55% more shaft work is necessary. Determine the theoretical shaft work required in foot-pound force per pound mass.
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A jet of water with a velocity of 30 m/s impinges on a series of canes moving at 12 m/s at 30 to the direction of motion. The cane angle at outlet is 162 degrees to the direction of motion Complete (i) the cane angle at inlet for shochless entry and the efficiency of power transmission.
A pump draws water from open reservoir A at 20 ft above pump centerline and lifts to an open reservoir B at 280 ft above pump centerline. The loss of head at the suction is 3 times the velocity head at the 6 inches suction pipe and at the discharge is 20 times the velocity head at the 4 inches discharge pipe. The pump discharge is 200 GPM. a. The total dynamic head in ft. b. The water power in horsepower
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