Energy-Saving and Economical Evaluations of a Ceramic Gas Turbine Cogeneration Plant

DOI: 10.4236/ojee.2013.22012   PDF   HTML     4,450 Downloads   6,523 Views   Citations


A ceramic gas turbine can save energy because of its high thermal efficiency at high turbine inlet temperatures. This paper deals with the thermodynamic and economic aspects of a ceramic gas turbine cogeneration system. Here cogeneration means the simultaneous production of electrical en-ergy and useful thermal energy from the same facility. The thermodynamic performance of a ceramic gas turbine cycle is assessed using a computer model. This model is used in parametric studies of performance under partial loads and at various inlet air temperatures. The computed performance is compared to the measured performance of a conventional gas turbine cycle. Then, an economic evaluation of a ceramic gas turbine cogeneration system is investigated. Energy savings provided by this system are estimated on the basis of the distributions of heat/power ratios. The computed economic evaluation is compared to the actual economic performance of a conventional system in which boilers produce the required thermal energy and electricity is purchased from a utility.

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Okamoto, S. (2013) Energy-Saving and Economical Evaluations of a Ceramic Gas Turbine Cogeneration Plant. Open Journal of Energy Efficiency, 2, 89-96. doi: 10.4236/ojee.2013.22012.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] K. Honjo, R. Hashimoto and H. Ogiyama, “Current Status of 300 kW Industrial Ceramic Gas Turbine R & D in Japan,” Transactions of ASME, Vol. 115, No. 1, 1993, pp. 51-57.
[2] Gas Turbine Society of Japan, “Small Scale Ceramic Gas Turbine: Research and Development of Advanced Gas Turbine,” NTS Inc., Tokyo, 2003. (in Japanese)
[3] A. A. El Hadik, “The Impact of Atmospheric Conditions on Gas Turbine Performance,” Transactions of ASME, Vol. 112, No. 4, 1990, pp. 590-596.
[4] F. F. Huang, “Performance Evaluation of Selected Combustion Gas Turbine Cogeneration Systems Based on First and Second-Law Analysis,” Transactions of ASME, Vol. 112, No. 1, 1990, pp. 117-121.
[5] M. A. El-Masri, “On Thermodynamics of Gas Turbine Cycles: Part 1-Second Law Analysis of Combined Cycles,” Transactions of ASME, Vol. 107, No. 4, 1985, pp. 880-889.
[6] New Energy and Industrial Technology Development Organization, “A Study of the Effect of Ceramic Gas Turbine Development,” NEDO-P-8723, NEDO, 1988, p. 65. (in Japanese)
[7] S. Consonni, Lozza and E. Macchi, “Optimization of Cogeneration Systems Operation Part B: Solution Algorithm and Examples of Optimum Operating Strategies,” Proceedings of the 1989 ASME COGEN-TURBO III, 1989, pp. 323-331.

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