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Prethodno priopćenje
https://doi.org/10.17818/NM/2018/1.4

Exergy Analysis of Steam Pressure Reduction Valve in Marine Propulsion Plant on Conventional LNG Carrier

Vedran Mrzljak   ORCID icon orcid.org/0000-0003-0323-2600 ; Faculty of Engineering University of Rijeka Rijeka
Igor Poljak ; Rožići, Kostrena
Božica Žarković ; Faculty of Engineering University of Rijeka Rijeka

Puni tekst: engleski, pdf (4 MB) str. 24-31 preuzimanja: 244* citiraj
APA 6th Edition
Mrzljak, V., Poljak, I. i Žarković, B. (2018). Exergy Analysis of Steam Pressure Reduction Valve in Marine Propulsion Plant on Conventional LNG Carrier. NAŠE MORE, 65 (1), 24-31. https://doi.org/10.17818/NM/2018/1.4
MLA 8th Edition
Mrzljak, Vedran, et al. "Exergy Analysis of Steam Pressure Reduction Valve in Marine Propulsion Plant on Conventional LNG Carrier." NAŠE MORE, vol. 65, br. 1, 2018, str. 24-31. https://doi.org/10.17818/NM/2018/1.4. Citirano 20.11.2019.
Chicago 17th Edition
Mrzljak, Vedran, Igor Poljak i Božica Žarković. "Exergy Analysis of Steam Pressure Reduction Valve in Marine Propulsion Plant on Conventional LNG Carrier." NAŠE MORE 65, br. 1 (2018): 24-31. https://doi.org/10.17818/NM/2018/1.4
Harvard
Mrzljak, V., Poljak, I., i Žarković, B. (2018). 'Exergy Analysis of Steam Pressure Reduction Valve in Marine Propulsion Plant on Conventional LNG Carrier', NAŠE MORE, 65(1), str. 24-31. https://doi.org/10.17818/NM/2018/1.4
Vancouver
Mrzljak V, Poljak I, Žarković B. Exergy Analysis of Steam Pressure Reduction Valve in Marine Propulsion Plant on Conventional LNG Carrier. NAŠE MORE [Internet]. 2018 [pristupljeno 20.11.2019.];65(1):24-31. https://doi.org/10.17818/NM/2018/1.4
IEEE
V. Mrzljak, I. Poljak i B. Žarković, "Exergy Analysis of Steam Pressure Reduction Valve in Marine Propulsion Plant on Conventional LNG Carrier", NAŠE MORE, vol.65, br. 1, str. 24-31, 2018. [Online]. https://doi.org/10.17818/NM/2018/1.4

Sažetak
Paper has presented an exergy analysis of steam pressure reduction valve, unavoidable element in the steam propulsion plant on LNG carrier. The steam pressure reduction valve was analyzed in a wide range of steam system loads. Along with pressure decrease, through the valve also occur decrease in steam temperature and increase in steam specific entropy. The pressure decrease of the analyzed valve ranges from 4.846 MPa up to 5.027 MPa while the average steam temperature decrease for the whole observed operating range amounts 74.8 °C. At the ambient temperature of 25 °C, valve exergy destruction ranges from 121.72 kW up to 180.64 kW, while exergy efficiency amounts from 80.28 % up to 80.54 %. Variation in the ambient temperature, for the expected engine room temperature range, showed that the exergy destruction of pressure reduction valve increases and exergy efficiency decreases during the increase in the ambient temperature. The lowest average value of pressure reduction valve exergy destruction was obtained at the ambient temperature of 10 °C and amounts 152.03 kW, while at the same ambient temperature was obtained the highest average exergy efficiency of 82.77 %. The highest valve exergy destruction and the lowest exergy efficiency were obtained at the highest observed ambient temperature of 40 °C.

Ključne riječi
pressure reduction valve; exergy destruction; exergy efficiency; ambient temperature

Hrčak ID: 195326

URI
https://hrcak.srce.hr/195326

Posjeta: 329 *