When steam is released to turbine the turbine produces?


When steam is released to turbine the turbine produces?

Steam turbines range from <0.75 KW units to 1.5 GW units. Large turbines are used to generate electricity. As the name implies, a steam turbine is powered by steam. As hot, gaseous steam flows past the turbine’ spinning blades, steam expands and cools, giving off most of the energy it contains.

Why steam is used in turbine?

Because of the high pressure and high kinetic energy, steam turbines are mostly used. As steam contains thermal energy, high pressure is obtained for running the turbines, to generate electricity.

How is compounding done in steam turbine?

Compounding of steam turbine is used to reduce the rotor speed. It is the process by which rotor speed come to its desired value. A multiple system of rotors are connected in series keyed to a common shaft and the steam pressure or velocity is absorbed in stages as it flows over the blades.

Why steam turbine staging is done?

The first turbine stage, however, is often an impulse stage for controlling the steam flow and for rapidly reducing the pressure in stationary nozzles from its high steam generator value, thereby lowering the pressure that the casing has to withstand.

Where is steam turbine used?

Steam turbines are found everywhere on the planet and are used to turn generators and make electricity or create propulsion for ships, airplanes, missiles. They convert heat energy in the form of vaporized water into motion using pressure on spinning blades.

Why steam turbine is compounded?

Why is steam turbine important?

Because the turbine generates rotary motion, it is particularly suited to be used to drive an electrical generator—about 85% of all electricity generation in the United States in the year 2014 was by use of steam turbines. A steam turbine connected to an electric generator is called a turbo generator.

What is pass out turbine?

What is a pass out turbine? Pass-out condensing steam turbine systems, where a proportion of the steam used by the turbine is extracted at an intermediate pressure from the turbine with the remainder being fully condensed before it is exhausted at the exit (pass-out/condensing steam turbine).

What is steam turbine engine?

A steam turbine is a machine that extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft. Its modern manifestation was invented by Charles Parsons in 1884. A steam turbine connected to an electric generator is called a turbo generator.

Where does the steam come from in a steam turbine?

Steam enters from the left through the gray pipe at the top, arriving in the very middle of the turbine and just above it. Then it simultaneously flows in both directions (to the left and the right) through the low-pressure reaction turbine, which drives the electricity generator on the right.

How does a condenser work in a steam turbine?

Condensing turbines (used in large power plants to generate electricity) turn the steam at least partly to water using condensers and giant concrete cooling towers. This allows the steam to expand more and helps the turbine extract the maximum energy from it, making the electricity generating process much more efficient.

How is the exhaust pressure of a steam turbine controlled?

Non-condensing or back pressure turbines are most widely used for process steam applications, in which the steam will be used for additional purposes after being exhausted from the turbine. The exhaust pressure is controlled by a regulating valve to suit the needs of the process steam pressure.

Why do steam turbines look like propeller blades?

Photo: Steam turbine blades look a bit like propeller blades but are made from high-performance alloys because the steam flowing past is hot, at high pressure, and traveling fast. Photo of a turbine blade exhibited at Think Tank, the science museum in Birmingham, England.

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