Last Updated, Dec 16, 2021, 11:31 AM Content Marketing
How Does Gas Turbine Power Plants Work?
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In the modern environment, a great deal of effort is being put into finding better, greater efficient, and more inexpensive ways to generate power. Giant corporations have often used gas turbines to generate power since 1939.

Gas turbines are among the most common power generation systems globally. However, they are still getting upgraded to offer uninterrupted power to communities across the world. This article will help you know how these gas turbine power plants operate to generate energy.

 

What are Gas Turbines?

Gas turbines are a type of internal combustion engine. In gas turbines, hot gases are produced by the ignition of an air-fuel mixture. Then, it uses these hot gases to spin a turbine to generate electricity. Gas turbines get their name from the generation of hot gas during fuel burning.

It uses fuel oils, natural gas, and synthetic fuels to produce energy.  In gas turbines, the burning process continues, unlike in conventional Internal Combustion engines, where combustion occurs intermittently.

Gas Turbine Power Plant Benefits

Along with generating electricity, gas turbine services have several other advantages. Here are some of the best benefits of Gas Turbine Services to acknowledge:

  • They have lower capital and operational costs than identical steam turbine power plants. But, again, it is because their creation is significantly simpler and compact.
  • A gas turbine is substantially easier to build in comparison to a steam turbine.
  • It does not require any condenser as it has nothing to deal with steam. Therefore, neither it needs any cooling tower-like construction.
  • A gas turbine power plant operates faster.
  • The components connected with boilers are not present in a gas turbine since it lacks any boiler-like element.

Necessary Elements of a Gas Turbine Power Plant

Even though a gas turbine’s functions are intricate, it comprises three key components:

  • Compressor
  • Combustion system
  • Turbine

The compressor pumps air into the motor. The air is then compressed and supplied into the combustion process at speeds of hundreds of miles an hour. Then, the combustion system injects natural gas into the combustion chamber using fuel injectors. Due to the injection, it exceeds the temperatures up to 2,000 degrees Fahrenheit.

Eventually, the combusting gases enter the turbine, where it spins revolving blades. This blade rotates a generator that generates power for various energy marketplaces. This operation also draws additional air into the turbine, renewing the procedures.

Different Types of Gas Turbines and Their Elements

There are two main types of gas turbines power plants:

  • Open Cycle Gas Turbines

Elements: Starting motor, Compressor, Gas Turbine, Combustion Chamber, and Generator

  • Closed Cycle Gas Turbines

Elements: Starting motor, Air heater, Air compressor, turbine, Heat Exchanger, and Generator.

How Does the Gas Turbine Power Plants Operate?

Check out the working procedures of gas turbine power plants. Both types have their own set of working methods. Let’s understand both processes from the following steps.

Working Procedure of Open Cycle 

  • The compressor is started with the help of the starting motor. Then, the compressor draws the fresh air, compressing to massive pressure. Likewise, the temperatures rise, and compressed air is sent to the combustion chamber.
  • In this power plant, the combustion chamber enhances the thermal energy of pressurized air at intense pressure.
  • The turbine is therefore fed the hot and high-pressure gas. The nozzle assists in transforming the high pressure of the gases into kinetic energy.
  • Then, the hot gas jet leaving the nozzle intervenes the turbine blades, which causes them to rotate. The rotational mechanical energy is therefore transformed from the kinetic energy.
  • Following this, the chimney subsequently discharges the gases into the air.
  • Because the turbine and the compressor share the same shaft, the compressor utilizes a portion of the work generated to compress the air. At the same time, the delivering the remainder to the generator.

It subsequently converts the rotational mechanical energy into electrical energy through the generator. For example, an open cycle gas turbine generates electricity in this manner.

Working Procedure of Close Cycle

The close cycle gas turbine power plant operating in the following manner:

  • The close gas turbines do not expel the turbine’s exhaust gas to the surroundings. Instead, it uses the gases by directing them to the heat exchanger.
  • The heat delivered to the gases is indirect. In other words, the heat exchanger or the air heater warms the air is by surface contact.
  • As a result, there is no interaction between the combusted fuel and the gases. Here, it uses a heat exchanger to transport only the warmth to the gas.

Conclusion

Here, we come to the end of the article. We hope this article offers all the necessary information you were looking for. From the advantages to types to elements, we have mentioned every accurate detail. Most importantly, you will get to learn the operating procedures of the gas turbines. Read the complete article to understand everything regarding the Gas Turbine Power Plants.