Working of impulse turbine, Mechanical Engineering

Working of Impulse turbine:

The technique in which multiple system of rotors are keyed to a common shaft, in series and the steam pressure of jet velocity is absorbed in stages as it flows over the rotor blades, is termed as compounding. The velocity compounding is as shown in figure. Curtiz turbine is an example of this type of turbine. Three rings of moving blades (keyed to shaft) are separated by rings of fixed or guide blades. The rings of fixed blades are attached to the turbine casing which is stationary. The steam is expanded from the boiler pressure to the condenser pressure in the nozzle. The high velocity jet of steam 1st enters the 1st row of moving blades, where some portion of this high velocity is absorbed by this blade ring. The remaining being exhausted on the next ring of fixed blades. The fixed blades change direction of jet. The jet is in turn passed to the next ring of moving blades. This procedure is repeated as the steam flows over the remaining pairs of blades until practically whole of the velocity of the jet is absorbed.

 

Posted Date: 10/20/2012 3:51:07 AM | Location : United States







Related Discussions:- Working of impulse turbine, Assignment Help, Ask Question on Working of impulse turbine, Get Answer, Expert's Help, Working of impulse turbine Discussions

Write discussion on Working of impulse turbine
Your posts are moderated
Related Questions
A hot gas at 300°C flows through a long metal pipe 100mm outer diameter and 3mm thick. From the standpoint of safety and energy conservation, mineral wool insulation of thermal con

What is ignition angle offset

Prove the parallelogram law of forces: Assume that the two forces P and Q act at a point ' O ' as shown in figure given below. The force P can be represented in magnitud

please explain more about polygon of forces lab such as observation, theory and others.

REACTIO N TURBINE: The turbine in which the steam expands while passing over the moving blades as well as while passing over the fixed blades and the pressure of steam dec

A cast iron hollow column, having 100mm external diameter and 80mm internal diameter is used as a column of 2.4 m length. Using Rankine formula, calculate the crippling load, when

Rigid and linearly elastic material: A rigid material is one which is having no strain regardless of the applied stress. A linear elastic material is one in which strain is

CO 2 WELDING CO 2 welding is one of the variations of t he GMAW (Gas Met al Arc Welding) process which is now used for welding most structural and alloy steels. The operating

Estimate the Weight of the Casting A Yoke casting shown in Figure is to be produced by sand casting process. Estimate the weight of the casting if the density of the material

There are various methods of producing components from the plastics materials which are supplied in the granular, power and other forms. Various plastics molding processes discu