Exergy analysis of steam-water injector performance

• Autorzy: Trela M. , Kwidziński R.
• Języki publikacji: EN

Abstrakty

EN

Exergy analysis is applied to estimate irreversible losses during operation to steam-water injector. Exergy destruction was determined for individual parts of the injector including steam nozzle, water nozzle and diffuser as well as for two-phase flow region comprising mixing chamber and condensation shock wave. Example calculations based on own experimental data showed that highest irreversible losses take place in two-phase flow region. Significant losses are also observed in the steam nozzle, while the losses in liquid-only flow in the water nozzle and diffuser are small and negligible. Exergy efficiency defined as outlet to inlet exergy ratio was also calculated for the injector and found to be in the range of 28-36%.

Słowa kluczowe

EN

condensation; entropy; exergy; irreversible losses; supercritical steam-water injector

PL

egzergia; entropia; kondensacja; nadkrytyczny dozownik wodno-gazowy; skraplanie; straty nieodwracalne

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2008
• Tom: Vol. 29, no. 1
• Strony: 41--58
• Opis fizyczny: Bibliogr. 15 poz.,rys., wykr., wz.,

Twórcy

autor

Trela M.

autor

Kwidziński R.

• The Szewalski Institute of Fluid-Flow Machinery of the Polish Academy of Sciences, ul. Fiszera 14, 80-931 Gdańsk, Poland,

Bibliografia

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