Sustainable Energy
2nd Edition
ISBN: 9781337551663
Author: DUNLAP, Richard A.
Publisher: Cengage,
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Chapter 8, Problem 12P
a.
To determine
Find the power transferred through a iron rod.
b.
To determine
Find the diameter of the rod after reducing from 10 cm towards reducing the power transferred to the rod is 4 W.
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15) Determine the power transmitted by a jet of water discharging though a nozzle that is fitted to a pipe of length 300 m and 100 mm diameter with co-efficient of friction equal to 0.01. The head at the outlet of the nozzle is 90 m.
The horizontal pump in Fig.1 discharges water at 57 m3/h. Neglecting Losses,What power in KW is delivered to the water by the pump?
A-836 watt B-8360 watt C-8362 watt D-83600 watt
Find the specific energy of flowing water through a rectangular channel of width 5 m when the discharge is 10~m^{3}/s and depth of water is 3 m.
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- A standpipe 8 m in diameter and 13 m high is filled with water. Calculate the potential energy of the water if the elevation datum is take 5 m below the base of the standpipe. (kN-m) Round your answer to 2 decimal places.arrow_forwardHydraulics 3. A liquid of Gs=1.75 flows in a 6 cm diameter horizontal pipe. The total energy at a certain point in the flow is 80 J/N. The elevation of the pipe above a fixed datum is 2.60 m. If the pressure at the specified point is 75 KPa, solve the power available at that point in watts.arrow_forwardWater passes under a sluice gate in a horizontal rectangular channel of width 2.0 m. The depths of flow on either side of the sluice gate are 1.8 m and 0.3 m. Assuming no energy loss at the gate, calculate the force on the gatearrow_forward
- A pipe is used to deliver water at a rate of 3.8 m³/s from the intake to the turbine. The difference in elevation between the intake’s water surface and the turbine is 200 m. Knowing the headloss in the pipeline from the intake to the turbine is 8 m, find the power (in kW) generated by the turbine if its efficiency is 80%.arrow_forwardb) Water flows from a large reservoir through a pipe system which consists of 200 mm diameter ofpipe and 50 mm diameter of nozzle as shown in Figure 3. By neglecting all energy losses, calculate;(iii) Total energy at Aarrow_forwardIn the mountains, hydroelectric facilities transport water from a reservoir through enclosed tubes to a turbine. In these plants, the intake tube of 100 cm (Point 2), 50 meters in diameter, is under the water surface of the reservoir (Point 1). Before the turbine falls into a 50-cm diameter bucket 200 meters through the tube (Point 3). (a) What is the speed of the water in the image when the turbine approaches Point 3?(b) Calculate the flow rate of the water at Point 3(c) Calculate the pressure P at point 1 (water surface), point 2 (intake) and Point 3 (nozzle), respectivelyarrow_forward
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