Thermodynamics. Need help solving this. Step by step with units 4.9 As shown in Fig. P4.9, river water used to irrigate a field is con-trolled by a gate. When the gate is raised, water flows steadily with avelocity of 75 ft/s through an opening 8 ft by 3 ft. If the gate is raisedfor 24 hours, determine the volume of water, in gallons, provided forirrigation. Assume the density of river water is 62.3 lb/ft³.RiverRaisedgateA₁ = 8 ft x 3ftFIGURE P4.9River waterV₁ = 75 ft/sp = 62.3 lb/ft³Field

Answered: Image /qna-images/answer/289ddaf4-1d85-45cb-93e8-df35e431bae9.jpg

Answered: 4.9 As shown in Fig. P4.9, river water…

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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6. The velocity in a 2-cm diameter pipe is 20 m/s. If the pipe enlarges to 5-cm in diameter, the velocity, in m/s, will be:a. 8.0b. 6.4c. 3.2d. 2.0
Q3. In Fig. 3 below, the pump move water from tank A to pressurized Tank B at rate of 100 m³ in 5 min. Perform appropriate calculation to determine if the pump with 2.5 hp works for this purpose. Repeat the calculation and determine if the pump works with air pressure in Tank B of 2.5 atm instead 1.5 atm. в P=15 atm Presure dow lese 4m 50 m Pump Figure 3 water supply system
Show complete work. The diagram must be added
A compressor draws in 500 E of air whose density is 0.079 - and discharges ft3 min it with density of 0.304- At the suction, P1 = 15- and at the discharge, P2 = in The increase in the specific internal energy is 33.8 Btu and the heat from lb 80 air by cooling is 13 . Neglecting changes of potential and kinetic energy, Btu determine the work done on the air in - and horsepower,hp. min
A cylindrical tank with a radius of 3ft is filled with water which has a weight density of 62.4 lb/ft^3. The water is to be pumped to a point 2ft above the top of the tank. (a) How much work is performed in pumping all the water from the tank? (B) How much work is performed in pumping 3ft of water from the tank? (C) At what point is 1/2 of the total work done?
5. Consider two tanks, A and B, each with a large opening at the top. The two tanks contain different liquids. A small hole is made in the side of each tank at the same depth h below the liquid surface, but the hole in tank A has three times the cross-sectional area of the hole in tank B. (a) If it is known that the mass flow rate is the same for the two holes, find the ratio of PALPB of the densities of the liquids in tanks A and B. (b) (c) equal volume flow rates, what height above the hole must the liquid in tank A be just then? Find the ratio RVAIRVB of the volume flow rates from the two tanks. At one instant, the liquid in tank B is 90 cm above the hole. If the tanks are to have
When air expands adiabatically (without gaining or losing heat), it's pressure P and volume V are related by the equation PV^1.4=C where C is a constant. Suppose that at a certain instant the volume is 510 cubic centimeters and the pressure is 87 kPa and is decreasing at a rate of 12 kPa/minute. At what rate in cubic centimeters per minute is the volume increasing at this time?
Figure 3.6 EXERCISE 2 Air flows through a pipe at a rate of 120 l/s. The pipe consist of two sections of diameters 22 cm and 10 cm with a smooth reducing section that connects them. The pressure difference between the two pipe sections is measured by a water manometer. Neglecting frictional effects, determine the differential height of water between the two pipe sections. Take the air density to be 1.2 kg/m³. (Ans: 0.01367 m) 22 cm 10 cm Air 120 L/s Water
An air compressor has a suction volume of 0.35 cubic meter/ second at 97 kPa and discharges to 650 kPa. How much horsepower saved by the compressor if there are two stages, nearest hundredths?
Ex. 1.13] A pump draws water from reservoir A and lifts it to reservoir B as shown in the figure. The loss of head from A to 1 is three times the velocity head in the 15.24-cm pipe and loss of head from 2 to B is 20 times the velocity head in the 101.6-mm pipe. The pump discharge rate is 40 Ips. Determine the following: a) Pump head b) Pump theoretical power c) Pump brake power if the pump efficiency is 78% d) Pressure head at point 1 e) Pressure head at point 2 Given: Pump system shown Q = 40 Ips Ha = 3 Za- 36 m H = 20 2g Z6m D, = 15.24 cm D,- 101.6 mm Required: Pump a) TDH b) Pump WP c) BP if pump efficiency is 78% d) Pressure head at point 1 e) Pressure head at point 2
Please list any assumptions and answer all parts
Q2. Assume the pump has the performance plotted in Figure Q7 Efficiency (%) 100 80 60 40 20 C Total head (ft) 200,60 45 150 Head 100 30 50 15 0 0 Efficiency 500 2000 Power 1000 4000 1500 2000 kW 60 45 30 15 2500 (gal/min) 8000 10000 (l/min) hp 80 T T 60 40 20 6000 Pump capacity Figure Q2 Assume the pump was operating at a rotational speed of 1750 rpm for water y = 9810 N/m^3 and that the impeller diameter was 330 mm. The power required for this pump is 37 KW and the total head is 40 m. find the performance of pump at a speed of 1250 rpm. Where 1 m^3-1000 L. Power

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