Combined cycle technology matches ideally two distinct thermodynamic processes creating much higher energy productivity.
This means that, less gas is used and smaller amounts of discharge fumes are released, for each unit of energy produced.
The air inside, after having been filtered, sucked out and compressed in compressor (1), is then mixed with natural gas in the combustion chamber in the gas turbine (2). Here combustion of the mix takes place and it is where the hot steam is derived from and it then goes through the recovery boiler (3), exhausting its energy content and transferring it to the circulating water therein. The steam generated in this process goes on to expand itself into the steam turbine (4). Successively the air condenser (5) cools down the discharge fumes, allowing the water to be re-used, which then flows into the boiler again.
Finally, the mechanical energy produced by both of the turbines is transferred to the relative alternators (6), which transform it into electricity, to then be put into the national grid.
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