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Energy and exergy analysis of a gas turbine power plant with inlet evaporating cooling systems

Ameri, M ; Sharif University of Technology

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  1. Type of Document: Article
  2. Publisher: Aabo Akademi University
  3. Abstract:
  4. The gas turbine (GT) is known to feature low capital cost to power ratio, high flexibility, high reliability without complexity, short delivery time, early commissioning and commercial operation and fast starting-accelerating. Hence, researchers all over the world are working to increase the output power and efficiency of gas turbine cycle. One of the important techniques to increase the output power of such cycles is the compressor inlet air cooling method. The objective of this paper is to analysis the gas turbine cycle from both energy and exergy point of view. Thus, two important methods for increasing the output power, i.e. fog and media inlet air cooling systems are discussed. Moreover, the effect of some key parameters such as ambient temperature, air humidity and pressure drop at the compressor inlet are discussed. Finally, it has been shown that fog inlet air cooling method is slightly a better option in comparison with the media inlet air cooling. Moreover, it is concluded that by using evaporative cooling there is no change in compressor and turbine efficiency. Nevertheless, it reduces the thermal and exergy efficiencies of combustion chamber and increases the total cycle efficiency
  5. Keywords:
  6. Exergy analysis ; Fog ; Media ; Combustion chambers ; Compressors ; Cooling ; Costs ; Environmental impact ; Exergy ; Gas turbine power plants ; Optimization ; Thermoelectric equipment ; Commercial operation ; Energy and exergy analysis ; Evaporating cooling systems ; Inlet air-cooling systems ; Output power and efficiencies ; Gas turbines
  7. Source: 23rd International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems, 14 June 2010 through 17 June 2010 ; Volume 4 , 2010 , Pages 203-210 ; 9781456303181 (ISBN)