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. 4. The following data relate to a Pelton wheel:

Head = 72 m, speed of wheel = 240 r.p.m., shaft power of the wheel = 115 kW, speed , coefficient of velocity = 0.98, ratio = 0.45, overall efficiency = 85%, Design the Pelton wheel.


Related Discussions:- Maximum efficiency

Optimization, consider the following LPP max z=9x1+8x2+5x3 subject to 2x1+3...

consider the following LPP max z=9x1+8x2+5x3 subject to 2x1+3x2+x3 5x1+4x2+3x3 x1,x2,x3>_0 (a)solve using simlex method (b)hence using the sesitivity analysis,find the new optima

Determine product data exchange specifications, Product Data Exchange Speci...

Product Data Exchange Specifications (PDES) By 1984, many of these international efforts had produced enough results to be compared, and an international community was preparin

Steam generator load balancing, Q. Steam Generator Load Balancing? The ...

Q. Steam Generator Load Balancing? The pressure controller output is cascaded to individual stations, one for each boiler. These allow selective increase or decrease of the du

Working of boiler, Working of boiler : Water is filled in boiler ...

Working of boiler : Water is filled in boiler shell through the feed valve up to 2/3 rd of shell. Water flows down through the down take header by means of descending wa

Kinematics, how do you find the projectile motion or equation?

how do you find the projectile motion or equation?

Determine maximum stress and modulus of elasticity, Determine maximum stres...

Determine maximum stress and modulus of elasticity:  A composite of glass fibres and epoxy has all of fibres laid along the length and is needed to carry a stress of 12 MPa. T

Describe the mechanics of orthogonal cutting, Describe the Mechanics of ort...

Describe the Mechanics of orthogonal cutting. What is chip thickness ratio and formulae for it ? Explain Shear angle relationship based on Merchant's minimum cutting energy prin

Describe that energy is a point function, (a) Describe that Energy is a poi...

(a) Describe that Energy is a point function and a property of the system. (b) What is the essence of 1 st law of thermodynamics ? Write down expression for the first law appli

Evaluate the point of contraflexure, Evaluate the point of contraflexure: ...

Evaluate the point of contraflexure: An overhanging beam of 15 m span is carrying a consistently distributed load of 1 kN/m over the length of 10 m at a distance 5 m from the

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