The effect of installing steam-injected gas turbines in a cogeneration plant is analyzed with respect to unit sizing and operational planning. An optimization method is used to determine the capacities of gas turbines and other auxiliary machinery in consideration of their operational strategies for variations of electricity and thermal energy demands. Through a numerical study on a plant for district heating and cooling, it is clarified how the installation of steam-injected gas turbines in place of simple-cycle ones can improve the economic and energy-saving properties. The influence of the capital cost of steam-injected gas turbines on the unit sizing and the above-mentioned properties is also clarified.

Issue Section:
Gas Turbines: Industrial and Cogeneration
Topics:
Cogeneration plants, Gas turbines, Steam, Central heating, Cooling, Cycles, Machinery, Optimization, Thermal energy
1.
Baken, J. A. M., and Haspel, B. van den, 1988, “Optimized Operation of Steam-Injected Gas Turbine Cogeneration Units,” Proc. 2nd International Symposium and Exposition on Turbomachinery, Combined-Cycle Technologies and Cogeneration, pp. 259–265.
2.
Brown
D. H.
, and
Cohn
A.
,
1981
, “
An Evaluation of Steam Injected Combustion Turbine Systems
,”
ASME JOURNAL OF ENGINEERING FOR POWER
, Vol.
103
, pp.
13
–
19
.
3.
Cheney
E. W.
, and
Goldstein
A. A.
,
1959
, “
Newton’s Method for Convex Programming on Tchebycheff Approximation
,”
Numerical Mathematics
, Vol.
1
, pp.
253
–
268
.
4.
Fraize
W. E.
, and
Kinney
C.
,
1979
, “
Effects of Steam Injection on the Performance of Gas Turbine Power Cycles
,”
ASME JOURNAL OF ENGINEERING FOR POWER
, Vol.
101
, pp.
217
–
227
.
5.
Garfinkel, R. S., and Nemhauser, G. L., 1972, Integer Programming, Wiley, New York, pp. 5–7.
6.
Ito
K.
,
Yokoyama
R.
,
Akagi
S.
, and
Matsumoto
Y.
,
1990
, “
Influence of Fuel Cost on the Operation of a Gas Turbine-Waste Heat Boiler Cogeneration Plant
,”
ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER
, Vol.
112
, pp.
122
–
128
.
7.
Ito
K.
,
Yokoyama
R.
, and
Matsumoto
Y.
,
1995
, “
Optimal Operation of Cogeneration Plants With Steam-Injected Gas Turbines
,”
ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER
, Vol.
117
, pp.
60
–
66
.
8.
Land
A. H.
, and
Doig
A. G.
,
1960
, “
An Automatic Method of Solving Discrete Programming Problems
,”
Econometrica
, Vol.
28
, pp.
497
–
520
.
9.
Larson
E. D.
, and
Williams
R. H.
,
1987
, “
Steam-Injected Gas Turbines
,”
ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER
, Vol.
109
, pp.
55
–
63
.
10.
Maher, K. J., Ehmke, H. J., and Gibson, D. C., 1987, “Optimum Operation of a Steam Injected Gas Turbine,” presented at the USSR/Australia Workshop on Advanced Energy Technologies.
11.
Noymer, P. D., and Wilson, D. G., 1993, “Thermodynamic Design Considerations for Steam-Injected Gas Turbines,” ASME Paper No. 93-GT-432.
12.
Rice
I. G.
, 1993a, “Steam-Injected Gas Turbine Analysis: Part I—Steam Rates,” ASME Paper No. 93-GT-132; published as “
Steam-Injected Gas Turbine Analysis—Steam Rates
,”
ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER
, Vol.
117
,
1995
, pp.
347
–
353
.
13.
Rice, I. G., 1993b, “Steam-Injected Gas Turbine Analysis: Part II—Steam-Cycle Efficiency,” ASME Paper No. 93-GT-420.
14.
Rice, I. G., 1993c, “Steam-Injected Gas Turbine Analysis: Part III—Steam-Regenerated Heat,” ASME Paper No. 93-GT-421.
15.
Yokoyama
R.
,
Ito
K.
, and
Matsumoto
Y.
,
1994
, “
Optimal Sizing of a Gas Turbine Cogeneration Plant in Consideration of Its Operational Strategy
,”
ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER
, Vol.
116
, pp.
32
–
38
.
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