TURBINE INLET AIR COOLING
Turbine Inlet Air Cooling (TIAC) is a group of technologies and techniques consisting of cooling down the intake air of the gas turbine. The direct consequence of cooling the turbine inlet air is power output augmentation. This technology is widely used in hot climates with high ambient temperatures that usually coincide with on-peak demand periods.
ARANER is a global leader in TIAC energy systems all over the world. Maximize the turbine output and improve the energy efficiency of your installed turbine-base power plant during hot weather with turbine inlet air cooling technology.
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TIAC: How it works
Power output and turbine compressor efficiency are proportional to the inlet air flow rate and the pressure ratio, which decrease with higher temperatures. Furthermore, the electricity consumption peak time coincides with warmer air temperature during the day.
​With the Araner TIAC System this negative effect is compensated and the turbine will have constant and chilled inlet air temperature, increasing the power output and maintaining it constant against temperature changes. It creates a direct economic benefit in two ways, increasing the annual average output MW, and savings in comparison to additional turbine installation.
 Araner Filter HouseAraner Turbine Inlet Air Cooling boost the turbine output in on-peak period, improving the heat rate and helping producers to match daily demand. |  Araner Filter House |
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 Inlet Air Heat Exchanger for TIAC |  GE Frame 7 Turbine cooled by AranerDue to its extensive TIAC experience, Araner ensure that modifications are made in a way that there is done with no interference with other plant equipment and minimal shut-down period of each turbine |
 Araner Turbine Inlet Air CoolingApart from the turbine cooling, also the generator and auxiliaries must be cooled in order to be able to give the extra power required at high temperature ambient conditions. . |
Especially when the TIAC is needed only during some hours a day (peak demand) it is extremely beneficial to implement a Thermal Energy Storage Tank - TESTIAC configuration. With a TES Tank the net increase in power output is maximized and the cooling plant required are reduced, reducing also the project cost.
TIAC Power Augmentation
Araner designs and implements a filter house modification with minimal impact, and introduces the Extended Surface Heat Exchanger (ESHX). This tailor-made design for precise air flow, limited pressure drop, and water flow optimization is the most efficient way for indirect cooling.
TIAC Advantages
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Increase GT power output about 10% to 30%
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Improve turbine heat rate up to 5%
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Selectable and constant inlet air temperature with Araner Adaptative Temperature (AAT)
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Avoid GT output fluctuance produced by ambient conditions
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Lower price per generated megawatt compared with new GT plant
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No extra auxiliaries’ equipment needed. (same transformer and generator)
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Recognized green technology with carbon credits
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Fast system delivery compared with new turbine installation
