What is the function of turbine in power plant?
The Turbine has one major function: Convert the energy from the high pressure steam to mechanical energy in the form of shaft rotation so that the generator will turn.
What is used in gas turbine power plant?
In gas turbine power plant we use high pressure and temperature air instead of high pressure and temperature steam to rotate the turbine. In a gas turbine power plant, the shaft of turbine, alternator and air compressor are common. The mechanical energy created in the turbine is partly utilised to compress the air.
How is a gas turbine used?
A gas turbine is a combustion engine at the heart of a power plant that can convert natural gas or other liquid fuels to mechanical energy. This energy then drives a generator that produces the electrical energy that moves along power lines to homes and businesses.
How does a gas turbine start?
Gas turbine engines come in many shapes and sizes. The electric motor spins the main shaft until there is enough air blowing through the compressor and the combustion chamber to light the engine. Fuel starts flowing and an igniter similar to a spark plug ignites the fuel.
What is the principle of gas turbine?
The gas-turbine operates on the principle of the Brayton cycle, where compressed air is mixed with fuel, and burned under constant pressure conditions. The resulting hot gas is allowed to expand through a turbine to perform work.
What is gas turbine cycle?
The basic operation of the gas turbine is a Brayton cycle with air as the working fluid: atmospheric air flows through the compressor that brings it to higher pressure; energy is then added by spraying fuel into the air and igniting it so that the combustion generates a high-temperature flow; this high-temperature …
Which fuel is used in gas turbine?
Natural gas is the most preferred conventional fuel for propulsion of gas turbines. In view of this, it is often used as a reference fuel for comparison of the performance of gas turbine engines.
What is the cycle of gas turbine?
In an ideal gas turbine, gases undergo four thermodynamic processes: an isentropic compression, an isobaric (constant pressure) combustion, an isentropic expansion and heat rejection. Together, these make up the Brayton cycle.
What is a gas turbine and how does it work?
The gas turbine is the engine at the heart of the power plant that produces electric current. A gas turbine is a combustion engine that can convert natural gas or other liquid fuels to mechanical energy. This energy then drives a generator that produces electrical energy.
What are the types of starting a gas turbine?
The basic types of starters that are in current use for gas turbine engines are direct current (DC) electric motor, starter/generators, and the air turbine type of starters. Many types of turbine starters have included several different methods for turning the engine for starting.
What is the working principle of gas turbine engines?
Gas Turbine Working Principle Gas turbine engines derive their power from burning fuel in a combustion chamber and using the fast flowing combustion gases to drive a turbine in much the same way as the high pressure steam drives a steam turbine.
How do gas turbines generate electricity?
To generate electricity, the gas turbine heats a mixture of air and fuel at very high temperatures, causing the turbine blades to spin. The spinning turbine drives a generator that converts the energy into electricity.
