specific speedP#2Q.2. A Pelton wheel turbine of 1.9 m diameter works under a head of 50 m at 150 rpm. The buckets areexposed to water jet which delivers from a nozzle of 20 cm in diameter. Find the overall efficiencypower produced by the wheel if the buckets deflects the jet through an angle of 163°.coefficient of velocity as 0.98 [50 Marks]·licosplyYand noTake the

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Answered: specific speed P #2 Q.2. A Pelton wheel…

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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EX.1 An axial flow pump with an impeller rotor diameter of 30 cm handles water at a rate of 2.7 m?/minute running at 1500 rpm. The energy input is e ——T e T ‘a 125 J/kg and Total to Total efficiency is 0.75. If a geometrically similar pump has a diameter of 20 cm running at 3000 rpm, find its: i) Flow ratei) input power.
1. A Pelton wheel of 4 m diameter operates with a head of 1000 m. Estimate the flow rate and power output of the machine, assuming that it operates at peak efficiency and there are no losses in the flow upstream of the turbine. 2. A Pelton wheel operates with a head of 400 m at 350 rpm, and it is powered by a jet 12 cm in diameter. Find the specific speed (U.S. customary units), and the wheel diameter, if there are no losses in the flow upstream of the turbine and it operates at peak efficiency.
An inward flow reaction turbine works under a head of (22.5 m).The external andinternal diameters of therunner are(1.35 and 1m)respectively.The angle of guide vanesis (15°)and the moving vanes are radial at inlet.Radial velocity of flow through the runneris constant and there is no velocity of whirl at outlet.Determine the speed of the runnerin rpm and the angle of vane at outlet.If the turbine develops (375 kW),find the specificspeed.Neglect friction losses.[Ans.206.5 rpm,19°53',81.6]
A 1inch diameter nozzle there is water flows under 400ft head to operate a turbine. There is 90% efficient of turbine and connected to a 94% efficient generator. Find the power output in kilowatts.
Fast pls solve this question correctly in 5 min pls I will give u like for sure Mnty If you are running 3500lbs PSI of steam thru the turbine and your governor trips at 4200 PSI. What is your percentage of increase pressure required to reach the High Limits?
A single stage centrifugal pump has an impeller of 250 mm diameter which rotates at 1,800 rpm and lifts 60 lit/sec to 25 m with an efficiency of 70%. Obtain the number of stages and diameter of each impeller of a similar multi-stage pump to lift 75 lit/sec to 175 m at 1,500 rpm. (8 stages ; 280 mm dia)
The specific speed of turbine is 85 rpm and running at 450 rpm. The effective head is 20m and generator efficiency is 90%. Compute the maximum power delivered by the generator in kW 734.94 934.94 834.94
A hydraulic vane pump running at 1800 rpm develops 2 L/s flow at 750 kPa. Volumetric efficiency is .85 and overall efficiency is 0.8. Determine the Theoretical Torque required, TT (N-m). (Hint: first calculate the mechanical efficiency and theoretical flow rate. Convert rpm to rad/s). O 9.41 N-m 8.85 N-m 9.35 N-m 9.62 N-m 8.80 N-m
This is thermodynamics subject. I need complete solution (step by step process) with given. Thanks
Suppose that the pump of Fig. is run at 1100 r/minagainst a pressure rise of 210 bar. (a) Using the measureddisplacement, estimate the theoretical delivery in gal/min.From the chart, estimate (b) the actual delivery and (c) theoverall efficiency.
A hydro-electric power station has reservoir area of 2.4 km2 and capacity 5 x 106 M3.The effective head of water is 100M.The penstock, turbine and generator efficiencies are respectively 95%,90% and 85%.Find;(i) The total electrical energy that can be generated from the power station.(ii)If a load of 15,000 kw has been supplied for 3hrs, find the fall in reservoir level.
3. An impulse turbine which has a diameter of 60 in., speed of 350 rpm, peripheral speed factor of 0.45, and a jet diameter of 6.0 in. Compute the power in hp. show Complete Solution/s (i.e. transformations, equivalent formula, etc).

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