Determine the maximum efficiency, Mechanical Engineering

Assignment Help:

A jet strikes tangentially a smooth curved vane moving in the similar direction as the jet, and the jet gets reversed in the direction. Prove that the maximum efficiency is slightly less than 60 percent. The following data relate to a Pelton wheel:

Head = 72 m,

speed of wheel = 240 r.p.m.,

speed , ratio = 0.45,

coefficient of velocity = 0.98,

shaft power of the wheel = 115 kW,

overall efficiency = 85%,

Design the Pelton wheel.


Related Discussions:- Determine the maximum efficiency

Define leakage flux. , Leakage flux : The flux that links the ...

Leakage flux : The flux that links the coil only partially passes through the core does not link the coil as the moving or rotating device is called leakage flux.

Corrosion resistance of the austenitic stainless steels, The corrosion resi...

The corrosion resistance of the austenitic stainless steels (within the concentration and temperature conditions described above) relies on the formation and stability of a passive

Physical properties of materials, why is physical properties of materials i...

why is physical properties of materials important in design and for industrial application?

Disc clutch friction thickness, Disc clutch friction thickness: Check disc...

Disc clutch friction thickness: Check disc clutch friction thickness which should be minimum of 2.6 mm.

Consider some publications of the bureau of standards, Consider some public...

Consider some publications of the Bureau of Standards. The following publications of the Bureau of Standards shall be read along with this section of footings. a. IS 456 in

Thermal Science, Write an essay on air, water and soil-based heat pumps. Di...

Write an essay on air, water and soil-based heat pumps. Discuss the advantages and the disadvantages of each system. For each system identify the conditions under which that system

Plate oil separator, Plate oil Separator: Check for plate oil separator fi...

Plate oil Separator: Check for plate oil separator fitment.

Calculate the vertices for a translated triangle, A triangle PQR with verti...

A triangle PQR with vertices P(2,1), Q(4,4) , R(1,3) is to be translated by 2 units in x - direction and 4 units in y direction. Using the homogenous coordinate system, calculate t

Explain the tool signature, Explain the Tool Signature The tool angles ...

Explain the Tool Signature The tool angles have been standardized by the American standards association. The seven important elements comprise the signature of the cutting tool

Foil butt seam welding, Foil Butt Seam Welding This is a modification o...

Foil Butt Seam Welding This is a modification of seam welding, in which thin narrow strips of metal arc introduced between one or both of the circular electrodes and the work p

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd