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Exergy Analysis of Overspray Process in Gas Turbine Systems

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  • Kyoung Hoon Kim

    (Department of Mechanical Engineering, Kumoh National Institute of Technology, 61 Daehak-ro, Gumi, Gyeongbuk 730-701, Korea)

  • Kyoungjin Kim

    (Department of Mechanical System Engineering, Kumoh National Institute of Technology, 61 Daehak-ro, Gumi, Gyeongbuk 730-701, Korea)

Abstract

Gas turbine power can be augmented by overspray process which consists of inlet fogging and wet compression. In this study exergy analysis of the overspray process in gas turbine system is carried out with a non-equilibrium analytical modeling based on droplet evaporation and the second law of thermodynamics. This work focuses on the effects of system parameters such as pressure ratio, water injection ratio, and initial droplet diameter on exergetical performances including irreversibility and exergy efficiency of the process. The process performances are also estimated under the condition of saturated water injection ratio above which complete evaporation of injected water droplets within a compressor is not possible. The results show that the irreversibility increases but the saturated irreversibility decreases with increasing initial droplet diameter for a specified pressure ratio.

Suggested Citation

  • Kyoung Hoon Kim & Kyoungjin Kim, 2012. "Exergy Analysis of Overspray Process in Gas Turbine Systems," Energies, MDPI, vol. 5(8), pages 1-14, July.
    • Handle: RePEc:gam:jeners:v:5:y:2012:i:8:p:2745-2758:d:19156
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    References listed on IDEAS

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    1. Barakat, S. & Ramzy, Ahmed & Hamed, A.M. & El-Emam, S.H., 2019. "Augmentation of gas turbine performance using integrated EAHE and Fogging Inlet Air Cooling System," Energy, Elsevier, vol. 189(C).

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