Naslov
Exergy analysis of low-pressure condensate heating system from cogeneration power plant

Autori
Mrzljak, Vedran ; Orović, Josip ; Poljak, Igor ; Knežević, Vlatko

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
VII INTERNATIONAL SCIENTIFIC CONFERENCE - ENGINEERING. TECHOLOGIES. EDUCATION. SECURITY. 2019 - PROCEEDINGS - VOLUME 1 / Tokarev, Alexander - Sofija : Scientific technical union of mechanical engineering Industry - 4.0, 2019, 12-15

Skup
7th International Scientific and Technical Conference: Engineering. Technologies. Education. Safety.

Mjesto i datum
Veliko Trnovo, Bugarska, 29.05.2019. - 01.06.2019

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
CONDENSATE HEATING ; EXERGY ANALYSIS ; EXERGY DESTRUCTION ; EXERGY EFFICIENCY

Sažetak
The paper presents an exergy analysis of condensate low-pressure heating system of a cogeneration power plant, which consists of one heater, one condensate pump and one pressure reduction valve. The entire system is investigated at three different plant loads. Regardless of the plant load, the highest exergy destruction is noted for the condensate heater (between 416.41 kW and 771.46 kW), after which follows pressure reduction valve with exergy destruction between 57.43 kW and 120.61 kW. Exergy destruction of condensate pump is almost negligible at any plant load and therefore condensate pump has the highest exergy efficiency (between 75.86 % and 77.08 %). Exergy efficiency of condensate heater is between 56.13 % and 59.29 %, while pressure reduction valve has the lowest exergy efficiency of all three analyzed system components and is between 36.98 % and 48.42 %.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo, Tehnologija prometa i transport

POVEZANOST RADA