Solar heat at moderate temperatures around 200 °C can be utilized for augmentation of conventional steam-injection gas turbine power plants. Solar concentrating collectors for such an application can be simpler and less expensive than collectors used for current solar power plants. We perform a thermodynamic analysis of this hybrid cycle, focusing on improved modeling of the combustor and the water recovery condenser. The cycle's water consumption is derived and compared to other power plant technologies. The analysis shows that the performance of the hybrid cycle under the improved model is similar to the results of the previous simplified analysis. The water consumption of the cycle is negative due to water production by combustion, in contrast to other solar power plants that have positive water consumption. The size of the needed condenser is large, and a very low-cost condenser technology is required to make water recovery in the solar STIG cycle technically and economically feasible.

References

References
1.
Livshits
,
M.
, and
Kribus
,
A.
,
2012
, “
Solar Hybrid Steam Injection Gas Turbine (STIG) Cycle
,”
Sol. Energy
,
86
, pp.
190
199
.10.1016/j.solener.2011.09.020
2.
Digumarthi
,
R.
, and
Chang
,
C.-N.
,
1984
, “
Cheng-Cycle Implementation on a Small Gas Turbine Engine
,”
J. Eng. Gas Turbines Power
,
106
, p.
699
.10.1115/1.3239626
3.
Johnston
,
J. R.
,
2000
, “
Performance and Reliability Improvements for Heavy-Duty Gas Turbines
,” GE Power Systems Report No. GER-3571H.
4.
De Paepe
,
M.
, and
Dick
,
E.
,
2001
, “
Technological and Economical Analysis of Water Recovery in Steam Injected Gas Turbines
,”
Appl. Therm. Eng.
,
21
, pp.
135
156
.10.1016/S1359-4311(00)00029-6
5.
Nguyen
,
H. B.
, and
Otter
,
A. D.
,
1994
, “
Development of Gas Turbine Steam Injection Water Recovery (SIWR) System
,”
J. Eng. Gas Turbines Power
,
116
(
1
), p.
68
.10.1115/1.2906811
6.
Livshits
,
M.
, and
Kribus
,
A.
,
2011
, “
Water Consumption of the Solar STIG Cycle
,”
SolarPACES 2011
,
Granada, Spain
, September 20–23.
7.
Poullikkas
,
A.
,
2005
, “
An Overview of Current and Future Sustainable Gas Turbine Technologies
,”
Renewable Sustainable Energy Rev.
,
9
(
5
), pp.
409
443
.10.1016/j.rser.2004.05.009
8.
Livshits
,
M.
, and
Kribus
,
A.
,
2010
, “
Solar Hybrid STIG Cycle
,”
SolarPACES 2010
,
Perpignan, France
, September 21–24.
9.
U.S. Department of Energy
, (
2008
), “
Concentrating Solar Power Commercial Application Study: Reducing Water Cconsumption of Concentrating Solar Power Electricity Generation
,” Report to Congress, available at: http://www1.eere.energy.gov/solar/pdfs/csp_water_study.pdf
You do not currently have access to this content.