Economic and energy-saving characteristics of cogeneration systems with microturbine and desiccant air-conditioning units are investigated on system operational planning. An optimization approach is adopted to rationally evaluate these characteristics. In this approach, on/off and rated/part load status of operation of equipment and energy flow rates are determined so as to minimize the hourly energy charge subject to satisfaction of energy demand requirements. In this optimization problem, performance characteristics of the microturbine and desiccant air-conditioning units are modeled in consideration of the influence due to ambient air temperature. Moreover, the influence due to ambient air humidity is also considered in the desiccant air-conditioning unit using the psychrometric diagram. The implementation of the numerical analysis method, discussed in this paper, to two cogeneration systems, clearly shows economic and operational benefits of using desiccant air-conditioning.
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e-mail: gamou@ese.energy.osakafu-u.ac.jp
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July 2005
Technical Papers
Optimal Operational Planning of Cogeneration Systems With Microturbine and Desiccant Air Conditioning Units
Satoshi Gamou,
e-mail: gamou@ese.energy.osakafu-u.ac.jp
Satoshi Gamou
Department of Mechanical Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599-8531, Japan
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Koichi Ito,
Koichi Ito
Department of Mechanical Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599-8531, Japan
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Ryohei Yokoyama
Ryohei Yokoyama
Department of Mechanical Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599-8531, Japan
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Satoshi Gamou
Department of Mechanical Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599-8531, Japan
e-mail: gamou@ese.energy.osakafu-u.ac.jp
Koichi Ito
Department of Mechanical Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599-8531, Japan
Ryohei Yokoyama
Department of Mechanical 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, Vienna, Austria, June 13–17, 2004, Paper No. 2004-GT-53683. Manuscript received by IGTI, October 1, 2003; final revision, March 1, 2004. IGTI Review Chair: A. J. Strazisar.
J. Eng. Gas Turbines Power. Jul 2005, 127(3): 606-614 (9 pages)
Published Online: June 24, 2005
Article history
Received:
October 1, 2003
Revised:
March 1, 2004
Online:
June 24, 2005
Citation
Gamou, S., Ito , K., and Yokoyama, R. (June 24, 2005). "Optimal Operational Planning of Cogeneration Systems With Microturbine and Desiccant Air Conditioning Units ." ASME. J. Eng. Gas Turbines Power. July 2005; 127(3): 606–614. https://doi.org/10.1115/1.1850509
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