The working of a larger steam turbine may be complex and difficult to comprehend since it uses a set of blades on the rotor. This method generally operates at a higher efficiency than Impulse Turbines. The reactive force comes from the change in steam pressure energy as the steam leaves the blades. Reaction Turbines: Here, the rotor spins from a reaction force rather than an impact or impulse force.Impulse Turbines: Here, the rotor spins because of high force or the direct push of steam on the blades.Steam Turbines can also be made to operate without a condenser as well but provide a considerably lower power capacity for the same size of turbine.
STEAM POWER PLANT GENERATOR
Therefore, a boiler, steam turbine, generator, and condensed form the main components in a steam-powered generator plant.
The steam is condensed usually into a condenser. The method of retrieving electrical energy depends on how it will be used. The generator is attached to the turbine and when the turbine blades rotate, it makes the generator work on the principle of magnetic induction and creates electricity. There are two basic types of steam turbines – impulse turbines and reaction turbines whose blades are designed to control the speed, direction, and pressure of the steam as it passes through the turbine. The steam turbine consists of a casing to which stationary blades are fixed inside and a rotor has moving blades on the periphery. This steam from the boiler is pushed into the turbine through nozzles, which spins the blades mounted on a shaft. Steam production depends on the flow rate and surface area of the heat transfer and the heat of combustion used. There is a boiler that contains water and the heat is used to convert it into steam which is of high temperature and high pressure. In a steam turbine driven generator, heat is generated from a source. Working principle of a Steam-Driven Generator They rarely exceed about 1,500 Megawatts (2 million horsepower) on the top end and are used on a small scale as well, down to about 500 kW (670 horsepower) on the low end. Steam Turbine Driven Generators can range widely in size. In the United States alone around 85.0% of the electricity is produced using steam turbine generators. Most of the electric power in the world is produced by steam turbine-driven power plants. Steam turbine-driven generators are generally high-speed machines. They are also used extensively in cement, sugar, steel, paper, chemicals, and other industries. Steam turbine-driven generators are commonly used in solar thermal electric power plants, coal, geothermal, nuclear, waste incineration plants, and natural gas power plants. The auxiliary systems built-in them make them work safely and with greater efficiency. When a steam turbine is connected to a generator, it produces electricity and is known as a steam turbine driven generator.
The coiled wires used in a generator spin inside a magnetic field which causes an electric current to flow through the wire. And a generator is best described as a machine by which mechanical energy is transformed into electrical energy. The energy created by highly pressurized steam is converted to mechanical energy which rotates the blades in the steam turbine. Water is heated at an extremely high temperature to convert it into steam. A steam turbine is a steam-driven driver. Steam Driven Generators: Steam Turbines and Electric GeneratorsĪ steam turbine driven generator, sometimes known as “turbo generators”, can be best explained by understanding a steam turbine and a generator separately.
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