
Thermoeconomic analysis of a cogeneration system of a university campus
2002; Elsevier BV; Volume: 22; Issue: 13 Linguagem: Inglês
10.1016/s1359-4311(02)00064-9
ISSN1873-5606
AutoresJosé Luz Silveira, A. Beyene, Elisângela Martins Leal, Jane Aparecida de Souza Santana, Dagoberto Yukio Okada,
Tópico(s)Building Energy and Comfort Optimization
ResumoIn 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.
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