설비공학논문집 (Korean Journal of Air-Conditioning and Refrigeration Engineering)

  • 제21권8호
  • /
  • Pages.448-455
  • /
  • 2009
  • /
  • 1229-6422(pISSN)
  • /
  • 2465-7611(eISSN)
대한설비공학회 (The Society of Air-Conditioning and Refrigerating Engineers of Korea)
권호 표지

압축기 출구 물분사가 있는 재생 가스터빈 시스템의 성능해석

Performance Analysis of Regenerative Gas Turbine System with Afterfogging

  • 김경훈 (금오공과대학교 기계공학부) ;
  • 김세웅 (금오공과대학교 기계공학부) ;
  • 고형종 (금오공과대학교 기계공학부)
  • Kim, Kyoung-Hoon (School of Mechanical Engineering, Kumoh National Institute of Technology) ;
  • Kim, Se-Woong (School of Mechanical Engineering, Kumoh National Institute of Technology) ;
  • Ko, Hyung-Jong (School of Mechanical Engineering, Kumoh National Institute of Technology)
  • 발행 : 2009.08.10
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

A performance analysis of the regenerative gas turbine system with afterfogging is carried out. Because of the high temperature at the outlet of air compressor, afterfogging has a potential of improved recuperation of exhaust heat than inlet fogging. Thermodynamic analysis model of the gas turbine system is developed by using an ideal gas assumption. Using the model, the effects of pressure ratio, water injection ratio, and ambient temperature are investigated parametrically on thermal efficiency and specific power of the cycle. The dependency of pressure ratio giving peak thermal efficiency is also investigated. The results of numerical computation for the typical cases show that the regenerative gas turbine system with afterfogging can make a notable enhancement of thermal efficiency and specific power. In addition, the peak thermal efficiency is shown to decrease almost linearly with ambient temperature.

키워드

참고문헌

  1. Jonsson M., Yan J., 2005, Humidified gas turbines-a review of proposed and implemented cycles, Energy, Vol. 30, pp. 1013-1078 https://doi.org/10.1016/j.energy.2004.08.005
  2. Poullikkas A., 2005, An overview of current and future sustainable gas turbine technologies, Renewable and Sustainable Energy Reviews, Vol. 9, pp. 409-443 https://doi.org/10.1016/j.rser.2004.05.009
  3. Chaker M., Meher-Homji C. B. and Mee Ⅲ T., 2004, Inlet fogging of gas turbine engines-Part I：Fog droplet thermodynamics, heat transfer and practical considerations, ASME J. of Engineering for Gas Turbines and Power, Vol. 126, pp. 545-558 https://doi.org/10.1115/1.1712981
  4. Bhargava R., Meher-Homji C. B., 2005, Parametric analysis of existing gas turbines with inlet evaporative and overspray fogging, ASME J. of Engineering for Gas Turbines and Power, Vol. 127, pp. 145-158 https://doi.org/10.1115/1.1712980
  5. White A. J., Meacock A. J., 2004, An evaluation of the effects of water injection on compressor performance, ASME J. of Eng. Gas Turbines and Power, Vol. 126, pp. 748-754 https://doi.org/10.1115/1.1765125
  6. Kim K. H., Perez-Blanco H., 2006, An assessment of high-fogging potential for enhanced compressor performance, ASME paper No. GT2006-90482, Barcelona
  7. Perez-Blanco H., Kim K. H. and Ream S., 2007, Evaporatively-cooled compression using a high-pressure refrigerant, Applied Energy, Vol. 84, pp. 1028-1043 https://doi.org/10.1016/j.apenergy.2007.02.013
  8. Kim K. H., Perez-Blanco H., 2007, Potential of regenerative gas-turbine systems with high fogging compression, Applied Energy, Vol. 84, pp. 16-28 https://doi.org/10.1016/j.apenergy.2006.04.008
  9. Bassily A. M., 2001, Effects of evaporative inlet and aftercooling on the recuperated gas turbine cycle, Applied Thermal Eng., Vol. 21, pp. 1875-1890 https://doi.org/10.1016/S1359-4311(01)00054-0
  10. Nishida K., Takagi T. and Kinoshita S., 2005, Regenerative steam-injection gas-turbine systems, Applied Energy, Vol. 81, pp. 231-246 https://doi.org/10.1016/j.apenergy.2004.08.002
  11. Khaliq A., Choudhary K., 2006, Thermodynamic performance assessment of an indirect intercooled reheat regenerative gas turbine cycle with inlet air cooling and evaporative aftercooling of the compressor discharge, Int. J. Energy Research, Vol. 30, pp. 1295-1312 https://doi.org/10.1002/er.1221
  12. Chiang H. W. D., Wang P. Y. and Tsai B. J., 2007, Gas turbine power augmentation by overspray inlet fogging, J. Energy Eng., Vol. 133, pp. 224-235 https://doi.org/10.1061/(ASCE)0733-9402(2007)133:4(224)
  13. Jeon M . S., Lee J. J. and Kim T. S., 2009, Analysis of performance enhancement of a microturbine by water injection, J. Fluid Machinery, Vol. 12, No. 2, pp. 46-51 https://doi.org/10.5293/KFMA.2009.12.2.046
  14. Cengel Y. A., Boles M. A., 2006, Thermodynamics. An engineering approach, 5th Ed., Mc-Graw-Hill
  15. Cengel Y., 2006, Heat and mass transfer. A practical approach, 3rd Ed., McGraw-Hill