Please enable JavaScript.
Coggle requires JavaScript to display documents.
G9 AWESOME GAS TECHNOLOGY - Coggle Diagram
G9 AWESOME GAS TECHNOLOGY
Configurations
Combustion Turbine with Heat Recovery Unit
Combustion turbine systems burn fuel e.g. natural gas, oil, or biogas to turn generators to produce electricity
The heat captured is converted into useful thermal energy, usually in the form of steam or hot water
Heat recovery devices will capture the heat released from the turbine
Steam Boiler with Steam Turbine
The boiler will produce steam
The steam is used to turn the turbine in the generator to produce electricity
The steam that leaves the turbine can be used to produced useful thermal energy
What is Combined Cycle Gas Turbine (CCGT)?
CCGT is an energy efficient technology that generates electricity and captures the heat that would otherwise be wasted to provide useful thermal energy—such as steam or hot water—that can be used for space heating, cooling, domestic hot water and industrial processes
Also known as Combine Heat and Power Technology (CHP)
Located at facilities where there is a need for both electricity and thermal energy
Applications
A few offshore installations
Most large onshore power generation plants
Suitable for stable load applications, instead of variable load profiles
How CCGT Increase the Efficiency Better than OCGT?
A CCGT comes with a heat recovery system that captures waste heat, OCGT does not capture waste heat
When it comes to efficiency, OCGT systems have lower efficiency (around 40%) than CCGT, which can reach efficiencies of up to 56 – 60%. Therefore, CCGT may be the best option in power plants where efficiency is a key point.
Advantages
The size and weight are small enough to be suitable for ships, aircraft engines, and locomotives gas turbines
It generally operates fully automatically, so it’s suitable for use where operating staff is less experienced
Maintenance and installation time is less compared to a thermal power plant
The high overall efficiency exceeding 50% and low emission levels of pollutants make it suitable for heavily populated regions
Disadvantages
It requires special metals to maintain the units operated at high temperature and pressure
The technologies needed are more expensive and complex, so initial investments for building a plant is high
The Maintenance cost is high
Video Link
Animation video of onshore power plant using CCGT
https://www.youtube.com/watch?v=KVjtFXWe9Eo
