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

Mechanical design, The second stage of the design process is to evaluate th...

The second stage of the design process is to evaluate the oxygen requirement for the organism. This is necessary so that we can establish if the vessel we construct will be capable

Evaluate the specific enthalpy - thermodynamics, Evaluate the specific enth...

Evaluate the specific enthalpy - thermodynamics: Steam is being generated in a boiler at a pressure of 15.25 bar. Calculate the specific enthalpy when ( i )  Steam i

Calculate the horizontal and vertical components, Calculate the Horizontal ...

Calculate the Horizontal and Vertical Components A jet aircraft pulls up into a vertical curve as shown in the figure. As it passes the position where Θ = 30°, its speed is 10

Mounting systems for the welding head-boom mounted type, Mounting Systems ...

Mounting Systems For The  Welding Head-Boom mounted type These are the most versatile type of welding systems. Normally the boom is supported by means of a column. The welding

The auto component sector-automobiles industry growth , The auto component ...

The auto component sector has also posted significant growth of 20 percent in 2003-04, and achieved a sales turnover of Rs. 30,640 crore (US$ 6.7 billion). Further, there is a pote

Motion of connected bodies, Motion of connected bodies: Analyze motio...

Motion of connected bodies: Analyze motion of connected bodies that is connected by pulleys. Sol: The given figure shows a light and inextensible string passing over sm

Determine the stress in the meridional direction, Determine the stress in t...

Determine the stress in the meridional direction: A doubly curved shell of thickness 8 mm is filled through a liquid under an internal pressure of 2.0 N/mm 2 . At a specific p

Theory of machines, procedure to draw velocity and acceleration diagram usi...

procedure to draw velocity and acceleration diagram using relative velocity method

Mechanotechnics, list 5 important factors in the design of a workshops layo...

list 5 important factors in the design of a workshops layout

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