In an agricultural farm, the farmers use a sprinkler system to water the crops. Thne system discharges water from a horizontal pipe at the rate of 7.20 x 10-3 At one point in the pipe, where the radius is 4.00 cm (4.00 x 10-2m), the water's absolute pressure is 2.40 x 105Pa. At a second point in the pipe, the water passes through a constriction where the radius is 2.00 cm (2.00 x 1 m). What is the water's absolute pressure as it flows through this constriction?

In an agricultural farm, the farmers use a sprinkler system to water the crops. Thne system discharges water from a horizontal pipe at the rate of 7.20 x 10-3 At one point in the pipe, where the radius is 4.00 cm (4.00 x 10-2m), the water's absolute pressure is 2.40 x 105Pa. At a second point in the pipe, the water passes through a constriction where the radius is 2.00 cm (2.00 x 1 m). What is the water's absolute pressure as it flows through this constriction?

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

See similar textbooks

Similar questions

KL „Pump Reservoir 80m Well Figure 1 Your family has a small farm which needs to be watered by pumping water from a nearby well. The water needs to be continuously supplied at a rate of 0.003 m³/s through 6-cm internal diameter cast iron pipcs. The total required length of piping is measured to be 350m, with an angle valve fully open (KLvalve), a sharp-edged entrance (KLent), a rounded exit (KLexit) and ten threaded 90° bends (KLelbow). Take the efficiency of the pump to be 0.75, density and viscosity of water to be 1000 kg/m³ and 0.00131kg/m.s, respectively. Use Moody diagram for friction factor. i. Find the total head loss, httotal given that the pipe diameter is constant. ii. Determine the rated power of the pump that needs to be purchased, in kW. iii. Propose one practical way to reduce the total head loss, hL.total
Q.8 A turbine is working under a head of 200 m. The power developed by the turbine is 100 kW and discharge through the turbine is 0.125 m/s. In such a case, the ratio of unit power to unit discharge for the turbine will be A 2000 в 4000 C 6000 D 8000
Example (1-2): A pump delivers water from a tank A (water surface elevation =110 m) to tank B (water surface elevation = 170 m). The suction pipe is 45 m long (friction factor, f = 0-024) and 35 cm in diameter. The delivery pipe is 950 m long (f = 0·022) and 25 cm in diameter. The head discharge relationship for the pump is given by Hp = (90 – 8000 Q²), where Hp is in metres and Q in m³/s. Calculate: (i) The discharge in the pipeline. (ii) The power delivered by the pump.
A pump delivers water between a reservoir and a water tank. The surface waterelevation of the water tank is 20m higher. The suction side contains an entrance strainer (Ks=2.5), and50m of PVC pipe that is 25cm in diameter. The discharge side includes a 200m long PVC pipe, 25 cmin diameter, and a gate valve. The net positive suction head (NPSH) is 7.5m, and the design discharge is150L/s. Determine the allowable elevation difference between the pump and the reservoir water surface,z s, to avoid cavitation. Assume a kinematic viscosity of 1x10-6m 2 /s and a specific weight of 9.79kN/m 3 .
dp 1. It shows that the behavior of fluid is A From the equation stated, show the formula for mass flow rate AVp = c. :C.
When a pump with a suction and discharge pressure of 125 kPa and 409 kPa are used, the flow rate is 30L/s into a pipe with a diameter of 4 cm. Approximately 10cm in diameter, the suction diameter. What is the energy added to the water by the pump in meters
Water (10°C) is flowing at a rate of 0.35 m3/s, and it is assumed that h,: 2V2/2g from the reservoir to the Question 2 p = 100 kPa Elevation = 10 m D = 30 cm gage, where V is the velocity in the 30-cm pipe. What Elevation = 6 m power must the 40 cm diameter pump supply? Water T = 1000C Elevation = 2 m %3D
Q2l Calculate size of each part for the air conditioning ducts system shown in Figure(1) by using equilibrium pressure drop method. The velocity of air in main duct 7 m/s. Tabulate the results (velocity value, rate of pressure drop, circular diameter, and air flow rate) for each part, then convert circular ducts to equivalent rectangle ducts at height 300 mm for all system. 0.5 m³/s E 5m A D 0.5m³/s 3m B Figure (1) 3m 3m 5m C 1 m³/s
Werm Water flows through an adiabatic pumping system at a steady low rato (m) of 3 ke/u The conditions at the iniet are pi00 kPa, T=15 "C, and 0 m, and the conditions at the wxt are 500 kPa. T 18 "C, and ay= 200 um v Correct Waler Part 8 200 m Use the SL model to evaluate the punping power (W) Neglect any change in kinetic energy Express your answer in kilowatts to four significant figures. V AE ? vec Wat kW Submit ReduestAnswer - Part C What-if Scenario What would the pumping power be if the exit temperature were 19"C? Express your answer in kilowatts to four significant figures. AE 1 vec ?. Wout= kW Submit Beauest Answer
Water from a reservoir is pumped over a hill through a pipe 450 mm in diameter and a pressure of 1 kg/cm2 is maintained at the summit. Water discharge is 30 m above the reservoir. The quantity pumped is 0.5 m3/sec. Frictional losses in the discharge and suction pipe and pump is equivalent to 1.5 m head loss. The speed of the pump is 800 rpm what amount of energy must be furnished by the pump, kW?
A pump works between two opened tanks through a piFe of 10 cm diameter and length of 30 m with a friction factor of 0.02. The characteristic formula of the pump is given by H-52-1010 Q. There is a valve friction factor of 0.02. The characteristic formula of the located before the pump of minor losses factor (K) S Eten by the figure Q2 below, If the height of deliver side tank is 3 m Find:1) The volumetric fiow late n vaje Is fully opened 2) The percent valve setting if the dow rate is reduced by a half of the rate in )ASsame, free and large tank at the suction side tank]. Pump is given by H-52-1010 Q. There is a valve
An aqueduct is required to supply water to the community.Data: Families = 12 Average members per family = 3 people Breakfast, lunch and dinner = 15 total liters / family Showers = 10lt / person, one daily shower Kitchen wash = 13lts / day Total distance of the pipeline to the storage tank = 1200 meters Total height H from the pump point to delivery to the tank = 70 meters Determine: Estimation of the total volume of the recommended tank, an autonomy of at leas 2 days of storage. It is required to propose a pump that allows at least filling the tank between 5 to 12 hours operation, it must include details of the pump, as well as its curve Image: schematic detail of the proposed system