Optimal Operation of Cogeneration Plants With Steam-Injected Gas Turbines

Author:

Ito K.1,Yokoyama R.1,Matsumoto Y.2

Affiliation:

1. Department of Energy Systems Engineering, University of Osaka Prefecture, 1–1, Gakuen-cho, Sakai, Osaka, 593, Japan

2. Technical Research Center, Kansai Electric Power Co., Inc., 3-11-20, Nakoji, Amagasaki, Hyogo 661, Japan

Abstract

The effect of introducing steam-injected gas turbines into cogeneration plants is investigated from economical and energy-saving aspects on the basis of a mathematical programming approach. An optimal planning method is first presented by which the operational strategy is assessed so as to minimize the hourly running cost. Then, a case study is carried out on a plant used for district heating and cooling. Through the study, it is ascertained that the proposed method is a useful tool for the operational planning of steam-injected gas turbine plants, and that these plants can be attractive from economical and energy-saving viewpoints as compared with both simple-cycle gas turbine plus waste heat boiler plants and conventional energy supply ones.

Publisher

ASME International

Subject

Mechanical Engineering,Energy Engineering and Power Technology,Aerospace Engineering,Fuel Technology,Nuclear Energy and Engineering

Reference11 articles.

1. Baken, J. A. M., and Haspel, B. van den, 1988, “Optimised Operation of Steam-Injected Gas Turbine Cogeneration Units,” Proc. of the 2nd International Symposium on Turbomachinery, Combined-Cycle Technologies and Cogeneration (1988 ASME COGEN-TURBO II), pp. 259–265.

2. Brown D. H. , and CohnA., 1981, “An Evaluation of Steam Injected Combustion Turbine Systems,” ASME JOURNAL OF ENGINEERING FOR POWER, Vol. 103, pp. 13–19.

3. Fraize W. E. , and KinneyC., 1979, “Effects of Steam Injection on the Performance of Gas Turbine Power Cycles,” ASME JOURNAL OF ENGINEERING FOR POWER, Vol. 101, pp. 217–227.

4. Garfinkel, R. S., and Nemhauser, G. L., 1972, Integer Programming, Wiley, New York, pp. 5–7.

5. Ito, K., Yokoyama, R., Horii, S., Matsumoto, Y., and Akagi, S., 1987, “An Optimal Operational Planning Model for Gas Turbine Cogeneration Plants,” Proc. of the 1987 Tokyo International Gas Turbine Congress, Vol. 1, pp. 97–104.

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