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01-05-2017, 09:39 AM

hi, I'm Ashish I would like to get details on steam nozzle by rs khurmi free download. I heard that steam nozzle by rs khurmi free download will be available here. so need your help

jaseela123d · 01-05-2017, 12:11 PM

The nozzle is a conduit through which flows through which the velocity of a fluid increases at the expense of the pressure drop. If the fluid is steam, then the nozzle is called a steam nozzle.

The flow of steam through the nozzles can be adenobatic expansion. The steam has a very high velocity at the end of the expansion, and the enthalpy decreases as the expansion occurs. There is friction between the steam and the sides of the nozzle; Heat is produced as a result of resistance to flow. The phenomenon of super saturation occurs in the flow of steam through the nozzles. This is due to the time delay in the condensation of the steam during the expansion.

The area of said conduit having a minimum cross-section is referred to as a throat.

A fluid is called compressible if its density changes with the pressure change caused by the flow.

If the density changes very little or does not change, the fluid is said to be incompressible. In general, gases and vapours are compressible, while liquids are incompressible.

Types of nozzles:

There are three types of nozzles

1. Converging nozzle

2. Divergent nozzle

3. Convergent divergent nozzle.

In the impulse steam turbine, the overall heat transformation in mechanical work is performed in two distinct stages. The available energy of the steam is first changed into kinetic energy, and this kinetic energy is transformed into mechanical work. The first of these steps, namely, the transformation of the available energy into kinetic energy is discussed in this chapter. A nozzle is a cross-sectional area step in which the potential energy of the vapor is converted to kinetic energy. The increase of steam jet velocity at the outlet of the nozzle is obtained due to the decrease in the enthalpy (total heat content) of the steam. The nozzle has a shape such that it will perform this energy conversion with a minimum loss.

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