Optoelectronic measuring system for assessment of the annular two-phase gas-very viscous liquid flow

• Autorzy: Witczak S. , Czernek K.
• Konferencja: "Modelling of Multiphase Flows in Thermo-Chemical Systems. Advanced Measurement Techniques" / sympozjum [5th; September 2nd - 4th, 2005; Stawiska near Gdansk, Poland]
• Języki publikacji: EN

Abstrakty

EN

The paper presents the results of tests and theoretical considerations on assessment of hydrodynamics of a cocurrent annular downward flow of a very viscous liquid and a gas in vertical pipes. Measurement methods have been presented; special attention was paid to the optoelectronic measuring system. Systematic of flow patterns has been discussed and some chosen quantities characterizing flowing liquid films of high viscosity have been described.

Słowa kluczowe

EN

two-phase flow; very viscous liquid; liquid film

PL

przepływ dwufazowy; ciecz bardzo lepka; warstwa cieczy

• Wydawca: Wydawnictwo Politechniki Częstochowskiej
• Czasopismo: Turbulence : international journal
• Rocznik: 2005
• Tom: Vol. 11
• Strony: 25--33
• Opis fizyczny: Bibliogr. 14 poz.

Twórcy

autor

Witczak S.

• Department of Process Engineering, Technical University of Opole, Mikołajczyka 5, 45-271 Opole, Poland

autor

Czernek K.

• Department of Process Engineering, Technical University of Opole, Mikołajczyka 5, 45-271 Opole, Poland

Bibliografia

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• [3] Czernek K., Hydrodynamics of annular cocurrent down-flow of very viscous liquid and gas in vertical pipes, Ph.D. Thesis, Technical University of Opole 2004 (in Polish).
• [4] Du X.Z., Wang B.X., Wu S.R., Wu S.R., Jiang S.Y., Energy analysis of evaporating thin falling film instability in vertical tube, Int. J. Heat and Mass Transfer 2002, 45,1889.
• [5] Jayanti S., Hewitt G.F., Hydrodynamics and heat transfer in wavy annular gas-liquid flow: a computational fluid dynamics study, Int. J. Heat Mass Transfer 1997, 40, 10, 2445.
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• [8] Park C.D., Nosoko T., Gima S., Ro S.T., Wave-augmented mass transfer in liquid film falling inside a vertical tube, Int. J. of Heat and Mass Transfer 2004, 47, 2587.
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• [11] Spisak W., Two-phase flow gas-very liquid in vertical pipes, Ph.D. Thesis, Wrocław University of Technology 2004 (in Polish).
• [12] Trela M., Mikielewicz J., Motion and heat transfer of thin-film layer, Ossolineum, Wrocław 1998 (in Polish).
• [13] Troniewski L., Forced liquid film apparatuses, Studies and monographs, 14, Publ. of Technical University of Opole 1989 (in Polish).
• [14] Ulbrich R., Identification of two-phase gas-liquid flow in channel, Studies and monographs, 32, Publ. of Technical University of Opole 1989 (in Polish).