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Exergetic Analysis of a Gas Turbine with Inlet Air Cooling System

  • Mehmet Selçuk Mert
  • Mehmet Direk
  • Ümit Ünver
  • Fikret Yüksel
  • Mehmet İsmailoğlu
Chapter
Part of the Green Energy and Technology book series (GREEN)

Abstract

The climate condition affects the performance of the combined-cycle power plants. The efficiency of the combined cycle is significantly influenced by the temperature, pressure and humidity of the air. When the ambient air temperature increases, the density of the air decreases, and it leads to a reduction of power generated by the gas turbine. In this work, the energy and exergy analysis of a commercial gas turbine, with inlet air cooling, was performed. The effects of fogging system on gas-turbine performance studied. For this aim, the energy and exergy balances were obtained for each piece of equipment. Calculations have been made for four different cases for the regarded gas turbine system. Furthermore, exergetic efficiency, exergy destruction rates and improvement potentials were obtained, and the results of the study demonstrated graphically. It is concluded that the net power output of the gas turbine system increased at lower inlet temperatures and exergy destruction rates occurred from highest to lowest as combustion chamber (CC), gas turbine (GT) and air compressor (AC), respectively.

Keywords

Exergy analysis Inlet air Cooling Gas turbine 

References

  1. Al-Ibrahim, A.M., Varnham, A.: A review of inlet air-cooling technologies for enhancing the performance of combustion turbines in Saudi Arabia. Appl. Therm. Eng. 30, 1879–1888 (2010)CrossRefGoogle Scholar
  2. Athari, H., Soltani, S., Bölükbaşi, A., Rosen, M.A., Morosuk, T.: Comparative exergoeconomi analyses of the integration of biomass gasification and a gas turbine power plant with and without fogging inlet cooling. Renew. Energy. 76, 394–400 (2015)CrossRefGoogle Scholar
  3. Bhargava, R., Meher-Homji, C.B.: Parametric analysis of existing gas turbines with inlet evaporative and overspray fogging. J. Eng. Gas Turbines Power. 127, 145–158 (2005)CrossRefGoogle Scholar
  4. Cengel, Y.A., Boles, M.A.: Thermodynamics: An Engineering Approach, 7th edn, p. 1024. McGraw-Hill, New York (2010)Google Scholar
  5. Chaker M., Meher-Homji C.B., Mee T.: Inlet fogging of gas turbine engines – Part A: fog droplet thermodynamics, heat transfer, and practical considerations, Proceedings of ASME Turbo Expo, 2002-GT-30562 (2002)Google Scholar
  6. Dincer, I., Rosen, M.A.: Exergy: Energy, Environment and Sustainable Development, 2d edn. Elsevier, Oxford, UK (2013)Google Scholar
  7. Ehyaei, M.A., Mozafari, A., Alibiglou, M.H.: Exergy, economic and environmental (3E) analysis of inlet fogging for gas turbine power plant. Energy. 36, 6851–6861 (2011)Google Scholar
  8. Gord, M.F., Dashtebayaz, M.D.: A new approach for enhancing performance of a gas turbine (case study: Khangiran refinery). Appl. Energy. 86, 2750–2759 (2009)CrossRefGoogle Scholar
  9. Hartel C., Pfeiffer P.: Model analysis of high-fogging effects on the work of compression, ASME Turbo Expo Paper No. GT-2003-38117 (2003)Google Scholar
  10. Hosseini, R., Beshkani, A., Soltani, M.: Performance improvement of gas turbines of Fars (Iran) combined cycle power plant by intake air cooling using a media evaporative cooler. Energy Convers. Manag. 48, 1055–1064 (2007)CrossRefGoogle Scholar
  11. Kakaras, E., Doukelis, A., Karellas, S.: Compressor intake-air cooling in gas turbine plants. Energy. 29, 2347–2358 (2004)CrossRefGoogle Scholar
  12. Khaliq, A., Dincer, I.: Energetic and exergetic performance analyses of a combined heat and power plant with absorption inlet cooling and evaporative after cooling. Energy. 36, 2662–2670 (2011)CrossRefGoogle Scholar
  13. Kumara, N.R., Krishnab, K.R., Rajuc, A.V.S.R.: Performance improvement and exergy analysis of gas turbine power plant with alternative regenerator and intake air cooling. Energy Eng. 104, 36–53 (2007)CrossRefGoogle Scholar
  14. Salvi, D., Pierpaoli, P.: Optimization of inlet air cooling systems for steam injected gas turbines. Int. J. Therm. Sci. 41, 815–822 (2002)CrossRefGoogle Scholar
  15. Sanaye, S., Tahani, M.: Analysis of gas turbine operating parameters with inlet fogging and wet compression processes. Appl. Therm. Eng. 30, 234–244 (2010)CrossRefGoogle Scholar
  16. Shanbghazani, M., Khalilarya, S., Mizaee, I.: Exergy analysis of a gas turbine system with evaporative cooling at compressor inlet. Int. J. Exergy. 5, 309–325 (2008)CrossRefGoogle Scholar
  17. Shirazi, A., Najafi, B., Aminyavari, M., Rinaldi, F., Taylor, R.A.: Thermal-economic-environmental analysis and multi-objective optimization of an ice thermal energy storage system for gas türbine cycle inlet air cooling. Energy. 69, 212–226 (2014)CrossRefGoogle Scholar
  18. Utamura, M., Takeharaand, I., Karasawa, H.: Open cycle gas turbine for power augmentation. Energy Convers. Manage. 39, 1631–1642 (1998)CrossRefGoogle Scholar
  19. Yang, C., Yang, Z., Cai, R.: Analytical method for evaluation of gas turbine inlet air cooling in combined cycle power plant. Appl. Energy. 86(6), 848–856 (2009)CrossRefGoogle Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Mehmet Selçuk Mert
    • 1
  • Mehmet Direk
    • 1
  • Ümit Ünver
    • 1
  • Fikret Yüksel
    • 1
  • Mehmet İsmailoğlu
    • 1
  1. 1.Faculty of Engineering, Department of Energy Systems EngineeringYalova UniversityYalovaTurkey

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