Investigation of steam injector with variable throat cross-section

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

Abstrakty

EN

Increase of discharge pressure from steam injector by varying the throat cross-section of the mixing chamber with a moving needle is investigated experimentally and theoretically. Maximum discharge pressure was measured in two versions of the injector with the tapered needle inserted into the mixing chamber throat at varying deepness. Highest value of discharge pressure observed experimentally exceeded by about 35% the inlet steam pressure. This result is confirmed by theoretical consideration based on the momentum balance equation for the mixing chamber. In calculations, irreversible losses in the mixing chamber and Condensation shock wave are taken into account by total loss coefficient for which new correlation is proposed.

Słowa kluczowe

EN

condensation; liquid-vapour flow; shock wave; supercritical steam injector

PL

ciecz-para; fala uderzeniowa; kondensacja; nadkrytyczny dozownik parowy

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2007
• Tom: Vol. 28, no. 1
• Strony: 3--14
• Opis fizyczny: Wykr., wz., tab.,Bibliogr. 4 poz.,

Twórcy

autor

Kwidziński R.

autor

Trela M.

• Polish Academy of Sciences, Institute of Fluid-Flow Machinery, ul. Fiszera 14, 80-952 Gdańsk,

Bibliografia

• [1] TRELA M., KWIDZIŃSKI R., BUŁA M.: Maximum discharge pressure of supercritical two-phase steam injector, Archives of Thermodynamics 25(2004), No. 1, 41-52.
• [2] TRELA M., BUTRYMOWICZ D., DUMAZ P.: Experimental investigations of heat transfer in steam-water injector. 5th Int. Conf. on Multiphase Flow (ICMF'04), Yokohama, Japan 2004, CD-ROM, Paper No. 544.
• [3] FERRI R., ACHILLI A., GANDOLFI S.: DEEPSSI PROJECT: IETI Component Test Experimental. Data Report, Società Informazioni Esperienze Termoidrauliche (SIET), document 00 966 RP 02, 2002.
• [4] FERRI R., ACHILLI A., GANDOLFI S.: DEEPSSI PROJECT: IETI Additional Component Test Experimental. Data Report, Società Informazioni Esperienze Termoidrauliche (SIET), Document 00 987 RP 02, 2002.