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

Author:

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

Affiliation:

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

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

Abstract

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.

Publisher

ASME International

Subject

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

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