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https://doi.org/10.31217/p.34.2.12

Exergy analysis of marine waste heat recovery CO2 closed-cycle gas turbine system

Vedran Mrzljak   ORCID icon orcid.org/0000-0003-0323-2600 ; University of Rijeka, Faculty of Engineering,
Igor Poljak   ORCID icon orcid.org/0000-0001-8749-4223 ; Department of Maritime Sciences, University of Zadar, Zadar, Croatia
Jasna Prpić-Oršić   ORCID icon orcid.org/0000-0002-5742-6067 ; University of Rijeka, Faculty of Engineering,
Maro Jelić ; Maritime Department, University of Dubrovnik,

Puni tekst: engleski, pdf (3 MB) str. 309-322 preuzimanja: 43* citiraj
APA 6th Edition
Mrzljak, V., Poljak, I., Prpić-Oršić, J. i Jelić, M. (2020). Exergy analysis of marine waste heat recovery CO2 closed-cycle gas turbine system. Pomorstvo, 34 (2), 309-322. https://doi.org/10.31217/p.34.2.12
MLA 8th Edition
Mrzljak, Vedran, et al. "Exergy analysis of marine waste heat recovery CO2 closed-cycle gas turbine system." Pomorstvo, vol. 34, br. 2, 2020, str. 309-322. https://doi.org/10.31217/p.34.2.12. Citirano 06.03.2021.
Chicago 17th Edition
Mrzljak, Vedran, Igor Poljak, Jasna Prpić-Oršić i Maro Jelić. "Exergy analysis of marine waste heat recovery CO2 closed-cycle gas turbine system." Pomorstvo 34, br. 2 (2020): 309-322. https://doi.org/10.31217/p.34.2.12
Harvard
Mrzljak, V., et al. (2020). 'Exergy analysis of marine waste heat recovery CO2 closed-cycle gas turbine system', Pomorstvo, 34(2), str. 309-322. https://doi.org/10.31217/p.34.2.12
Vancouver
Mrzljak V, Poljak I, Prpić-Oršić J, Jelić M. Exergy analysis of marine waste heat recovery CO2 closed-cycle gas turbine system. Pomorstvo [Internet]. 2020 [pristupljeno 06.03.2021.];34(2):309-322. https://doi.org/10.31217/p.34.2.12
IEEE
V. Mrzljak, I. Poljak, J. Prpić-Oršić i M. Jelić, "Exergy analysis of marine waste heat recovery CO2 closed-cycle gas turbine system", Pomorstvo, vol.34, br. 2, str. 309-322, 2020. [Online]. https://doi.org/10.31217/p.34.2.12

Sažetak
This paper presents an exergy analysis of marine waste heat recovery CO2 closed-cycle gas turbine system. Based on the operating parameters obtained in system exploitation, it is performed analysis of each system component individually, as well as analysis of the whole observed system. While observing all heat exchangers it is found that combustion gases-CO2 heat exchangers have the lowest exergy destructions and the highest exergy efficiencies (higher than 92%). The lowest exergy efficiency of all heat exchangers is detected in Cooler (51.84%). Observed system is composed of two gas turbines and two compressors. The analysis allows detection of dominant mechanical power producer and the dominant mechanical power consumer. It is also found that the turbines from the observed system have much higher exergy efficiencies in comparison to compressors (exergy efficiency of both turbines is higher than 94%, while exergy efficiency of both compressors did not exceed 87%). The whole observed waste heat recovery system has exergy destruction equal to 6270.73 kW, while the exergy efficiency of the whole system is equal to 64.12% at the selected ambient state. Useful mechanical power produced by the whole system and used for electrical generator drive equals 11204.80 kW. The obtained high exergy efficiency of the whole observed system proves its application on-board ships.

Ključne riječi
Exergy analysis; Marine waste heat recovery; CO2; Closed-cycle gas turbine

Hrčak ID: 247798

URI
https://hrcak.srce.hr/247798

Posjeta: 128 *