Economic feasibility of microturbine cogeneration systems is investigated by analyzing relationships between the optimal number of microturbine units and the maximum energy demands under various conditions. For this purpose, a method to obtain the maximum energy demand at which the optimal number changes is proposed by combining a nonlinear equation problem and an optimal unit sizing problem hierarchically. Based on the proposed method, a map expressing the aforementioned relationships can be illustrated. Through numerical studies carried out on systems installed in hotels by changing the electrical generating efficiency and the capital unit cost of the microturbine cogeneration unit as parameters, the influence of the parameters on the economic feasibility of the microturbine cogeneration system is clarified.
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April 2005
Technical Papers
Parametric Study on Economic Feasibility of Microturbine Cogeneration Systems by an Optimization Approach
Satoshi Gamou,
Satoshi Gamou
Department of Energy Systems Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599-8531, Japan
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Ryohei Yokoyama,
Ryohei Yokoyama
Department of Energy Systems Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599-8531, Japan
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Koichi Ito
Koichi Ito
Department of Energy Systems Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599-8531, Japan
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Satoshi Gamou
Department of Energy Systems Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599-8531, Japan
Ryohei Yokoyama
Department of Energy Systems Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599-8531, Japan
Koichi Ito
Department of Energy Systems Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599-8531, Japan
Contributed by the International Gas Turbine Institute (IGTI) of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Paper presented at the International Gas Turbine and Aeroengine Congress and Exhibition, Atlanta, GA, June 16–19, 2003, Paper No. 2003-GT-38382. Manuscript received by IGTI, October 2002, final revision, March 2003. Associate Editor: H. R. Simmons.
J. Eng. Gas Turbines Power. Apr 2005, 127(2): 389-396 (8 pages)
Published Online: April 15, 2005
Article history
Received:
October 1, 2002
Revised:
March 1, 2003
Online:
April 15, 2005
Citation
Gamou, S., Yokoyama , R., and Ito, K. (April 15, 2005). "Parametric Study on Economic Feasibility of Microturbine Cogeneration Systems by an Optimization Approach ." ASME. J. Eng. Gas Turbines Power. April 2005; 127(2): 389–396. https://doi.org/10.1115/1.1806836
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