Influence of Fuel Cost on the Operation of a Gas Turbine-Waste Heat Boiler Cogeneration Plant

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

Department of Mechanical Engineering for Industrial Machinery and Systems, Osaka University, 2-1, Yamadaoka, Suita, Osaka, 565 Japan

Y. Matsumoto

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

J. Eng. Gas Turbines Power 112(1), 122-128 (Jan 01, 1990) (7 pages) doi:10.1115/1.2906466 History: Received December 30, 1988; Online April 24, 2008


The influence of fuel cost on the operation is investigated for a gas turbine-waste heat boiler cogeneration plant by an optimal operational planning method. A planning method is first presented by which the operational policy of each piece of constituent equipment is determined so as to minimize the operational cost. Then, a case study is performed for a cogeneration plant used for district heating and cooling. Through the study, it is made clear how the optimal operational policy and the economic or energy conservative properties are influenced by the costs of purchased electric power and natural gas. It is also shown that the optimal operational policy is superior in economy as compared with other conventional ones.

Copyright © 1990 by The American Society of Mechanical Engineers
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