Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 30843
Thermodynamic Performance Assessment of Steam-Injection Gas-Turbine Systems

Authors: Kyoung Hoon Kim, Giman Kim


The cycles of the steam-injection gas-turbine systems are studied. The analyses of the parametric effects and the optimal operating conditions for the steam-injection gas-turbine (STIG) system and the regenerative steam-injection gas-turbine (RSTIG) system are investigated to ensure the maximum performance. Using the analytic model, the performance parameters of the system such as thermal efficiency, fuel consumption and specific power, and also the optimal operating conditions are evaluated in terms of pressure ratio, steam injection ratio, ambient temperature and turbine inlet temperature (TIT). It is shown that the computational results are presented to have a notable enhancement of thermal efficiency and specific power.

Keywords: Gas Turbine, Thermal Efficiency, steam injection, RSTIG, STIG

Digital Object Identifier (DOI):

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 2166


[1] M. Lior, Advanced energy conversion to power, Energy Convers Mgmt 38(1997) 941-55.
[2] M. Jonsson, J. Yan, Humidified gas turbines - a review of proposed and implemented cycles, Energy 30(2005) 1013-1078.
[3] A. Poullikkas, An overview of current and future sustainable gas turbine technologies, Renewable and Sustainable Energy Reviews 9(2005) 409-443.
[4] M. Chaker, C.B. Meher-Homji, T. Mee III, Inlet fogging of gas turbine engines - Part I: Fog droplet thermodynamics, heat transfer and practical considerations, ASME J. of Eng for Gas Turbines and Power 126(2004) 545-558.
[5] R. Bhargava, C.B. Meher-Homji, Parametric analysis of existing gas turbines with inlet evaporative and overspray fogging, J. of Engineering for Gas Turbines and Power 127(2005) 145-158.
[6] A.J. White, A.J. Meacock, An evaluation of the effects of water injection on compressor performance, ASME paper No. 2003-GT-38237, and ASME J. of Eng. Gas Turbines and Power 126(2004) 748-754.
[7] K.H. Kim, H. Perez-Blanco, An Assessment of high-fogging potential for enhanced compressor performance, ASME paper No. GT2006-90482, Ba rcelona.
[8] H. Perez-Blanco, K.H. Kim, S. Ream, Evaporatively-cooled compressio n using a high-pressure refrigerant, Appl Energy 84(2007) 1028-1043.
[9] K.H. Kim, H. Perez-Blanco, Potential of regenerative gas-turbine syste ms with high fogging compression, Appl En-ergy 84(2007) 16-28.
[10] K.H. Kim, H.J. Ko, H. Perez-Blanco, Exergy analysis of gas-turbine sys tems with high fogging compression, Int. J. Exergy (2010), to be publish ed
[11] F.J. Wang, J.S. Chiou, Integration of steam injection and inlet air coolin g for a gas turbine generation system, Ener-gy Convrs Mgmt 45(2004) 1 5-26.
[12] A.M. Bassily, Effects of evaporative inlet and aftercooling on the recupe rated gas turbine cycle, Appl Therm Eng 21(2001) 1875-1890.
[13] K. Nishida, T. Takaki, S. Kinoshita, Regenerative steam-injection gas-t urbine systems, Appl Energy 81(2005) 231-246.
[14] D.G. Wilson, The design of high-efficiency turbo-machinery and gas tur bines, MIT press, Ch. 3, 1984.
[15] Y.A. Cengel, M.A. Boles, Thermo- dynamics. An engineering approach, 5th Ed, McGraw-Hill, 2006.
[16] Y.A. Cengel, Heat and mass transfer. A practical approach, 3rd Ed, Mc Graw-Hill, 2006.