Jun 20, 2025
What is a Gas Turbine? Types, Functions, and How They Work
The innovation of gas turbines has transformed how industries generate power and operate machinery. These advanced machines convert fuel into mechanical energy, offering reliable power solutions across various sectors.
By understanding how gas turbines work, the different types available, and their functions, businesses can make informed choices for effective machinery support and improved operational efficiency.
Understanding The Power of Gas Turbine
A gas turbine is a mechanical device that transforms the chemical energy from fuel into mechanical energy through a high-temperature combustion process. This generated energy powers equipment such as generators, compressors, and pumps.
Gas turbines play an important role in operating exploration and production facilities, which is crucial in industries like oil and gas. The engineering sector also relies on gas turbines for continuous power in different processes, while steel fabrication plants use them to sustain consistent production operations.
Different Types of Gas Turbines

Gas turbines are designed to meet the needs of various sectors. Here are the main types and their uses:
1. Industrial Gas Turbines
Industrial gas turbines are built for heavy-duty operations, making them ideal for manufacturing environments. Facilities involved in steel fabrication rely on these turbines to ensure a continuous power supply, which is crucial for operating large machinery and maintaining production schedules. Their robust design allows for long operating hours with minimal maintenance interruptions.
2. Aero-Derivative Gas Turbines
Derived from aircraft engine technology, aero-derivative gas turbines are lightweight and offer quick installation and mobility. These features make them suitable for temporary or mobile power generation, particularly in remote oil and gas fields. Their ability to operate on various fuel types provides flexibility for industries requiring adaptable energy solutions.
3. Marine Gas Turbines
Marine gas turbines are essential for powering naval vessels and commercial ships. They provide efficient propulsion and generate onboard electricity, ensuring smooth operations during long voyages. The compact size and high power-to-weight ratio of these gas turbines make them perfect for marine environments where space and efficiency are priorities.
4. Power Generation Gas Turbines
Used primarily in power plants, these gas turbines produce electricity for residential, commercial, and industrial applications. Their ability to deliver reliable power ensures precision in energy distribution, which is vital for operations requiring stable energy, such as data centres and large manufacturing plants.
How Gas Turbines Work: A Detailed Breakdown

Gas turbines operate through a highly efficient, multi-stage process that converts fuel into usable energy. Here’s a more in-depth look at each stage, as well as the additional components involved:
Air Intake
The process of air intake begins with air being drawn into the system through the intake. It passes through a filter that removes any debris and impurities, ensuring only clean air enters the gas turbine. This filtered air is then compressed in the next stage, providing the required pressure for efficient combustion.
Compression
The clean air enters the gas turbine compressor, where it is compressed by rotating and stationary blades. This increases both the pressure and temperature of the air, making it ready for combustion. The higher density of the compressed air improves the efficiency of the gas turbine combustion process.
Combustion
The compressed air is directed into the combustion chamber, where fuel is injected and ignited. This creates high-pressure, high-temperature gases that expand rapidly, producing a large amount of energy. The expanding gases drive the gas turbine blades, converting thermal energy into mechanical energy.
Turbine
The expanding gases flow through the gas turbine blades, causing them to spin. This spinning motion generates mechanical energy, which is harnessed to power equipment like generators or pumps. The gas turbine is connected to a shaft that transfers this energy for various industrial applications.
Exhaust
After passing through the gas turbine, the gases exit the system through the exhaust. The exhaust gases still contain significant heat and energy that can be captured. In advanced systems, this waste heat is used in combined-cycle setups to increase overall efficiency.
By incorporating all these stages and components, a gas turbine ensures that fuel is converted into usable power in the most efficient way possible, making it a critical component in many energy-intensive industries.
Different Functions of Gas Turbines in Industries
Gas turbines play a critical role across various industries by providing reliable, continuous power for essential operations. They are versatile, supporting a range of functions from primary energy generation to backup power systems. Their efficiency and stability make them indispensable in sectors like oil and gas, steel fabrication, engineering, and precision energy, where uninterrupted power is crucial.
Industry | Function |
Oil and gas | Power drilling equipment, pumps, and compressors for exploration and production. |
Steel Fabrication | Provide continuous energy for heavy machinery and high-temperature processes. |
Engineering | Serve as reliable energy sources for backup and primary electricity generation. |
Precision in Energy | Ensure stable power supply for industries requiring consistent energy outputs. |
Machinery Support | Enhance efficiency by providing backup power for essential equipment. |
Benefits of Using Gas Turbines

Investing in gas turbines offers several advantages for industries. These powerful machines play a key role in meeting energy demands efficiently and sustainably across various sectors.
Efficiency
Gas turbines deliver high energy output, making them a powerful solution for industrial operations. Their quick start-up times help reduce operational delays and improve productivity.
Reliability
Designed for continuous performance, gas turbines are ideal for industries that operate 24/7. Their durability ensures minimal downtime and consistent power delivery.
Fuel Flexibility
Gas turbines can run on various fuels, including natural gas, diesel, and kerosene. This adaptability allows industries to choose the most cost-effective or readily available energy source.
Space-Saving Design
With their compact build, gas turbines are a smart fit for facilities with limited space. This makes installation and integration easier without compromising output.
Environmental Compliance
Modern gas turbines are engineered to meet strict emission regulations. This supports eco-friendly operations and helps industries stay compliant with environmental standards.
Powering Industry Forward with Gas Turbines
Automech Group understands the importance of reliable and efficient power solutions. Our clients in industries like oil and gas, steel fabrication, and engineering rely on gas turbines to maintain productivity and ensure precision in energy. With our comprehensive machinery support services, we help businesses optimise their operations, reduce downtime, and achieve long-term energy efficiency.