Humidified gas turbine (HGT) cycles are a group of advanced gas turbine cycles that use water–air mixtures as the working media. In this article, three known HGT configurations are examined in the context of short-term realization for small to mid-sized power generation: the steam injected gas turbine, the full-flow evaporative gas turbine, and the part-flow evaporative gas turbine. The heat recovery characteristics and performance potential of these three cycles are assessed, with and without intercooling, and a preliminary economic analysis is carried out for the most promising cycles.

1.
Rao, A. D., and Joiner, J. R., 1990, “A Technical and Economic Evaluation of the Humid Air Turbine Cycle,” Proc. 7th Annual International Pittsburgh Coal Conference, September 10–14.
2.
A˚gren, N. D., 2000, “Advanced Gas Turbine Cycles With Water-Air Mixtures as Working Fluid,” Ph.D. Thesis, Royal Institute of Technology, Dept of Chemical Engineering/Energy Processes, Stockholm, Sweden. ISSN 1104-3266 ISRN KTH/KET/R-120-SE.
3.
Lindquist, T., 2002, “Evaluation, Experience and Potential of Gas Turbine Based Cycles With Humidification,” Ph.D. Thesis, Lund University, Dept. of Heat and Power Engineering, Lund, Sweden. ISBN 91-628-5330-9.
4.
Rydstrand, M., Westermark, M., and Bartlett, M., 2002, “An Analysis of the Efficiency and Economy of Humidified Gas Turbines in District Heating Applications”, Proc. ECOS 2002, Vol. II, pp. 695–703.
5.
Poggio, A., and Strasser, A., 1996, “CHENG Cycle Cogeneration System Application and Experience of Exhaust Gas Condensing,” Proc. POWERGEN ’96, June 26–28, Budapest.
6.
Nilsson, P. A., ed., 1996, “EvGT—Evaporative Gas Turbine—Block 3”, Technical report, Lund Institute of Technology, Dept. of Heat and Power Technology, Lund, Sweden.
7.
Kellerer, A., and Spangenberg, C., 1998, “Operating Experience With a Cheng-Cycle Unit,” VGB PowerTech, November 1998, pp. 16–22.
8.
Westermark, M., 1996, “Method and Device for Generation of Mechanical Work and, if Desired, Heat in an Evaporative Gas Turbine Process,” International Patent Application No. PCT/SE96/00936.
9.
Dalili, F., and Westermark, M., 2002, “Experimental Study on a Packed Bed Humidifier in an Evaporative Gas Turbine,” ASME Paper No. IJPGC2002-26106.
10.
Coulson, J. M., and Richardson, J. F., 1996, An Introduction to Chemical Engineering Design, Vol. 6 of Chemical Engineering, Butterworth-Heinemann, Stoneham, MA.
11.
Wahlberg, P.-E., 2001, “Design and Comparison Between a Finned Tubed Humidifier and a Packed-Bed Humidifier Concerning Performance and Costs,” Masters Thesis, Royal Institute of Technology, Dept. of Chemical Engineering and Technology/Energy Processes, Stockholm, SE-10044, Sweden.
12.
Hewitt, G. F., Shires, G. L., and Bott, T. R., 1994, Process Heat Transfer, CRC Press, Boca Raton, FL, pp. 220–229.
13.
Cataldi, G., 2001, “Dry Air-Cooling for Water Recovery in Humidified Gas Turbine Cycles,” Masters thesis, Royal Institute of Technology, Department of Chemical Engineering and Technology/Energy Processes, Stockholm, SE-10044, Sweden.
14.
Nilsson, K.-J., ALSTOM Power AB, Sweden.
15.
A˚gren, N. D., Westermark, M. O., Bartlett, M. A., and Lindquist, T., 2000, “First Experiments on an Evaporative Gas Turbine Pilot Plant—Water Circuit Chemistry and Humidification Evaluation,” ASME Paper No. 2000-GT-168.
16.
dePaepe
,
M.
, and
Dick
,
E.
,
1999
, “
Water Recovery in Steam-Injected Gas Turbines: A Technological and Economical Analysis
,”
European J. Mech. Environ. Eng.
,
44
, pp.
195
204
.
17.
Bartlett, M., and Westermark, M., 2001, “Experimental Evaluation of Air Filters and Metal Ion Migration in Evaporative Gas Turbines,” ASME Paper No. JPGC2001/PWR-19119.
18.
Bartlett
,
M. A.
, and
Westermark
,
M. O.
,
2004
, “
A Study of Humidified Gas Turbines for Short-Term Realization in Midsized Power Generation—Part I: Nonintercooled Cycle Analysis
,”
J. Eng. Gas Turbines Power
,
127
, pp.
91
99
.
You do not currently have access to this content.