Influence of the ambient temperature change on steam pressure reduction valve exergy destruction and exergy efficiency (CROSBI ID 673760)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Mrzljak, Vedran ; Poljak, Igor ; Orović, Josip ; Prpić-Oršić, Jasna
engleski
Influence of the ambient temperature change on steam pressure reduction valve exergy destruction and exergy efficiency
The paper presents an exergy analysis of pressure reduction valve mounted in the steam propulsion system on conventional LNG carrier. From exploitation are obtained that the valve pressure and temperature decrease become as higher as steam system load increases. Valve exergy power input and output decreases during the increase in steam system load, mostly because of the steam mass flow decrease. Steam system load increase in exploitation also causes a decrease in valve exergy destruction with a simultaneous decrease in valve exergy efficiency (from 68.42 % to 68.09 %). The ambient temperature variation showed that the valve exergy destruction is the lowest for the lowest observed ambient temperature, in any steam system load. The exergy efficiency of the pressure reduction valve is reverse proportional to valve exergy destruction. An increase in the ambient temperature for 10 °C causes a decrease in analyzed valve exergy efficiency for between 2.5 % and 3 %.
Ambient temperature ; Steam pressure reduction valve ; Exergy destruction ; Exergy efficiency
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Podaci o prilogu
26-29.
2019.
objavljeno
Podaci o matičnoj publikaciji
INTERNATIONAL SCIENTIFIC CONFERENCE MACHINES. TECHNOLOGIES. MATERIALS 2019 - winter session - Volume 1 - PROCEEDINGS
Popov, Georgi ; Dikova, Tsanka
Sofija: Scientific technical union of mechanical engineering Industry - 4.0
2535-0021
2535-003X
Podaci o skupu
XVI International Scientific Congress: Machines. Technologies. Materials
poster
13.03.2019-16.03.2019
Borovec, Bugarska