Thermoeconomic analysis of a cogeneration system of a university campus
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Data
2002-09-01
Autores
Luz-Silveira, J. [UNESP]
Beyene, A.
Leal, E. M. [UNESP]
Santana, J. A. [UNESP]
Okada, D. [UNESP]
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Resumo
In this paper, a thermoeconomic analysis method based on the First and the Second Law of Thermodynamics and applied to analyse the replacement of an equipment of a cogeneration system is presented. The cogeneration system consists of a gas turbine linked to a waste boiler. The electrical demand of the campus is approximately 9 MW but the cogen system generates approximately one third of the university requirement as well as 1.764 kg/s of saturated steam (at 0.861 MPa), approximately, from a single fuel source. The energy-economic study showed that the best system, based on pay-back period and based on the maximum savings (in 10 years), was the system that used the gas turbine M1T-06 of Kawasaki Heavy Industries and the system that used the gas turbine CCS7 of Hitachi Zosen, respectively. The exergy-economic study showed that the best system, which has the lowest EMC, was the system that used the gas turbine ASE50 of Allied Signal. © 2002 Elsevier Science Ltd. All rights reserved.
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Palavras-chave
Cogeneration, Energy-economic analysis, Exergetic manufacturing cost, Gas turbine, Approximation theory, Boilers, Gas turbines, Thermodynamics, Cogeneration products, Cogeneration plants
Como citar
Applied Thermal Engineering, v. 22, n. 13, p. 1471-1483, 2002.