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Pregled bibliografske jedinice broj: 533193

Working fluid selection in steam cycle with heat recovery steam generator


Čehil, Mislav; Bogdan, Željko; Lončar, Dražen; Katulić, Stjepko
Working fluid selection in steam cycle with heat recovery steam generator // CD proceedings of 6th Conference on Sustainable Development of Energy, Water and Environment Systems – SDEWES Conference. Dubrovnik, Croatia, 2011.
Dubrovnik, Hrvatska, 2011. (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)


Naslov
Working fluid selection in steam cycle with heat recovery steam generator

Autori
Čehil, Mislav ; Bogdan, Željko ; Lončar, Dražen ; Katulić, Stjepko

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

Izvornik
CD proceedings of 6th Conference on Sustainable Development of Energy, Water and Environment Systems – SDEWES Conference. Dubrovnik, Croatia, 2011. / - , 2011

Skup
6th Dubrovnik Conference on Sustainable Development of Energy, Water and Environment Systems

Mjesto i datum
Dubrovnik, Hrvatska, 25-29.11.2011.

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Heat recovery steam generator; waste heat utilization; pinch point; thermodynamic efficiency; organic Rankine cycle; working fluids

Sažetak
In heat recovery steam generators (HRSGs) the temperature differences between an inlet flue gases temperature and a steam turbine inlet temperature are significantly lower in relation to those differences in conventional steam generators. So a pinch point phenomenon limits a working fluid mass flow and consequently the flue gases in HRSG can not be sufficiently cooled. To avoid a high HRSG flue gases outlet temperature a multi pressure HRSGs are used with a water as working fluid. To obtain a high thermodynamic efficiency of a steam cycle with HRSG the water as working fluid must have a high pressure. So to find out an influence of the working fluid selection on thermodynamic efficiency a thermodynamic model of a single pressure HRSG is made. Analysis is made for water and for various organic working fluid. The thermodynamic efficiency of the cycle as well as pinch point phenomenon are taken into consideration. Thermal efficiencies of a plant are presented in dependance of a steam turbine inlet pressure and temperature. The data presented in this paper can be used to determine the optimal working fluid with respect to the HRSG flue gases inlet temperature as well as to select the optimal steam turbine inlet pressure and temperature of the working fluid in order to maximize the power plant thermodynamic efficiency.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo



POVEZANOST RADA


Projekt / tema
120-1201918-1911 - Optimiranje uvođenja novih tehnologija u regionalni energetski sustav (Željko Bogdan, )

Ustanove
Fakultet strojarstva i brodogradnje, Zagreb