Water at 15°C (p = 999.1 kg/m³ and ukg/m · s) is flowing steadily in a 30-m-long and 4-cm-diameterhorizontal pipe made of stainless steel at a rate of 8 L/s. Deter-mine (a) the pressure drop, (b) the head loss, and (c) the pump-ing power requirement to overcome this pressure drop.1.138 × 10–38 L/s4 cm30 mO

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Answered: Water at 15°C (p = 999.1 kg/m³ and u =…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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Heated air at I atm and 35°C (p= 1.145 kg/m² and u= 1.895 X105 kg/m s )is to be transported in a 200-m-long circular plastic duct at a rate of 0.4 m/s Fig. 4. If the head loss in the pipe is not to exceed 26.67 m, determine the minimum diameter of the duct. 0.4 m'/s air 200m Fig.4
6. Hot water flows through a horizontal steelpipe with diameter (0.25 m) the watervelocity is 5 m/s. The properties of water arep=300 kg/m3 p=3x10-2 kg/m: s. TheReynolds number isO 12000O 12500O 11500O 13500
A certain part of stainless-steelpiping of a water distribution system involves a parallel section.Both parallel pipes have a diameter of 30 cm. One of the branches (pipe A) is 1500 m long while the other branch (pipe B) is 2500 m long. If the flow rate through pipe A is 0.4 and 0.31 m3/s, respectively. Pipe A has a half-way-closed gate valve (KL= 3)while pipe B has a fully open globe valve (KL= 9), and the other minor losses are negligible. Determine the mechanical power of pump for the system.
Water with a temperature of 20 oC is pumped from a tank open to the atmosphere (zA = 2.62 m), through two cast iron (roughness value ε=0.005mm) pipes of 26.2 m length, connected in parallel with the higher one (zB = 9.62 m). Pipe diameters are D1 = 3.62 cm and D2 = 5.62 cm, respectively. The water is pumped with a motor-pump group, whose efficiency is 66.2% and consumes 7062 W of electrical power during operation. miner losses in pipes connecting parallel pipes to tanks are neglected. Find the total volume flow rate between the tanks and the volume flow rate in each of the parallel pipes. Solve the problem by making at least three iterations. Solve the problem by making the necessary assumptions and drawing the schematic figure. (a=6 and b=2 on the figure)
A gardener is thinking of installing piping system for watering the plants in his garden located near a water reservoir. The reservoir is located at an elevation of 150 m above from the surface, as shown in figure. The diameter of pipe (cast iron) is constant equal to 15 cm and total length of pipe is 180 m. It is desirable that the exit velocity of water to the garden should not exceed 5 m/sec and water is at atmospheric pressure and temperature is 20°C. The gardener is planning to open the valve for 3 hours daily. Calculate the followings: a) How much volume of liquid can be drawn from reservoir in a day? b) How much total irreversible head loss will be occurred in the system?
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A water tank is attached to a piping system with a sharp edge inlet (KL=0.5). Determine the velocity of the outlet water if the system has two elbow pipes (KL=1.5), the length of the entire system is 10m, the diameter is 1.5cm, the friction factor is 0.002 and the height between the water and the outlet are 5m.
The drinking water to a village is supplied from a reservoir which is 475 m above and 25 km away from the village. The water is transported from the reservoir to an open-top storage tank in the village via a circular pipe with a diameter of 18 cm and a roughness of 0.15 mm. The population of the village is 1500 people. There are two valves (K=2) and five 90° elbows (K=1.5) along the pipe. Assuming that an average person in the village consumes 225 L/day, determine the power (kW) of the pump needed to transter the water from the reservoir to the storage tank. You can take the density and viscosity of water as 1000 kg/m and 0.001 kg/m s, respectively, and you can neglect the inlet and exit losses and the kinetic energy correction factor effects.
Water drains from a pressurized tank (50 kPa gage) through a 0.1m-diameter pipe system at a rate of 0.0371 m³/s. If the density of water is 1000 kg/m³ and the dynamic viscosity is 1.12 x 10 - 3 Ns/m², the Reynolds number would be equal to O 3312 O 25893 O 422321 O 475892
A small centrifugal pump is used to pump 30-Celsius water at the rate of 6 L/s with ahead of 44.54 m. If the diameter of the pump is 20 cm and operate at 1200 rpm,determine;(i) head coefficient,(ii) capacity coefficient, and(iii) power coefficient. also the same small centrifugal pump is used to pump water at same rate but with a temperature of 15-Celsius. determine in which condition (15-Cor 30-C) is the pump perform better in term of;(i) power out, and(ii) pump efficiency.Justify your answer.
The water surface in reservoir B is 12m higher than the surface of reservoir C. A 40-cm diameter, 0.7km long iron-cast pipe carries water at 20°C from B to C. Determine discharge for this pipe? Friction factor for iron-cast pipe, f-0.018. Ke-0.5 and Kd=1.0, where: Ke - entrance coefficient; Kd- discharge coefficient. O A. 0.232m3/sec O B. 360L/sec OC.0.360m3/sec O D.0.336m3/sec

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