RESEARCH PAPERS: Gas Turbines: Cogeneration

Optimal Operation of Cogeneration Plants With Steam-Injected Gas Turbines

[+] Author and Article Information
K. Ito, R. Yokoyama

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

Y. Matsumoto

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

J. Eng. Gas Turbines Power 117(1), 60-66 (Jan 01, 1995) (7 pages) doi:10.1115/1.2812782 History: Received October 13, 1993; Online November 19, 2007


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.

Copyright © 1995 by The American Society of Mechanical Engineers
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