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Power characteristics of unsteadily rotating Rushton turbine
in aerated vessel

Data publikacji: 10.11.2014

Czasopismo Techniczne, 2014, Chemia Zeszyt 2-Ch (24) 2014 , s. 155 - 164

Autorzy

,
Szymon Woziwodzki
Department of Chemical Engineering and Equipment, Faculty of Chemical Technology, Poznań University of Technology
Wszystkie publikacje autora →
Lubomira Broniarz-Press
Department of Chemical Engineering and Equipment, Faculty of Chemical Technology, Poznań University of Technology
Wszystkie publikacje autora →

Tytuły

Power characteristics of unsteadily rotating Rushton turbine
in aerated vessel

Abstrakt

The paper presents an analysis of power requirements for unsteadily rotating Rushton turbine in an aerated vessel. The experiments have shown that the presence of gas phase in liquid results in reduction of power requirements. The effect of oscillation frequency on power requirements for F1 mixing mode was not observed while for FR mode power requirement was inversely proportional to oscillation frequency. The lowest relative power demand (RPD) was equal to 0.49, and the overall power requirements for unsteady mixing modes were higher in comparison to standard unidirectional mixing mode.

Bibliografia

Woziwodzki S., Unsteady mixing characteristics in a vessel with forward-reverse rotating impeller, Chemical Engineering & Technology, vol. 34, 2011, 767-774.

Woziwodzki S., Turbulent forward–reverse mixing characteristics in vessel with multiple-turbine impellers, Journal of Chemical Technology & Biotechnology, vol. 88, 2013, 483-490.

Woziwodzki S., Mixing of viscous Newtonian fluids in a vessel equipped with steady and unsteady rotating dual-turbine impellers, Chemical Engineering Research and Design, in press, 2013, DOI: 10.1016/j.cherd.2013.09.013.

Woziwodzki S., Broniarz-Press L., Jędrzejczak Ł, Zaworska K., Porównanie sposobów zwiększenia efektywności mieszania płynów lepkich w mieszalniku z dwoma mieszadłami, Inżynieria i Aparatura Chemiczna, vol. 52(4), 2013, 378-379.

Woziwodzki S., Szatkowska K., Wpływ stopnia niecentryczności na moc mieszania mieszadeł ze zmiennym w czasie kierunkiem obrotów, Przemysł Chemiczny, vol. 90(9), 2011, 1702-1704.

Woziwodzki S., Słowiński J., Power Requirements for Yield Stress Fluids in a Vessel with Forward-Reverse Rotating Impeller, Procedia Engineering, vol. 42, 2012, 1437-1444.

Woziwodzki S., Broniarz-Press L., Mixing of shear-thinning fluid with yield stress in a vessel with unsteadily rotating impeller, 14th European Conference on Mixing, Warszawa, 10‒13 September 2012, 515-520.

Nienow A.W., Gas-liquid mixing studies: a comparison of Rushton turbine with some modern impellers, Chemical Engineering Research and Design, vol. 74, 1996, 417-423.

Yoshida M., Watanabe M., Yamagiwa K., Ohkawa A., Abe M., Tezura S., Shimazaki M., Behaviour of gas-liquid mixtures in an unbaffled reactor with unsteadily forward-reverse rotating impellers, Journal of Chemical Technology & Biotechnology, vol. 77, 2002, 678-684.

Stokes G.G., On the effect of the internal friction of fluids on the motion of pendulums, Cambridge Philosophical Society Transactions, vol. 9, 1851, 8-106.

Middleton J.C., Smith J.M., Gas-liquid mixing in turbulent systems, [In:] E.L. Paul, V. Atiemo-Obeng, S. Kresta, Handbook of industrial mixing: science and practice, John Wiley & Sons, Hoboken, 2004, 585-639.

Nienow A.W., Wisdom D.J, Middleton J.C., The effect of scale and geometry on flooding, recirculation and power in gassed vessels, Proceedings 2nd European Mixing Conference, Cambridge, 17-34.

Informacje

Informacje: Czasopismo Techniczne, 2014, Chemia Zeszyt 2-Ch (24) 2014 , s. 155 - 164

Typ artykułu: Oryginalny artykuł naukowy

Tytuły:

Polski:

Power characteristics of unsteadily rotating Rushton turbine
in aerated vessel

Angielski:

Power characteristics of unsteadily rotating Rushton turbine
in aerated vessel

Autorzy

Department of Chemical Engineering and Equipment, Faculty of Chemical Technology, Poznań University of Technology

Department of Chemical Engineering and Equipment, Faculty of Chemical Technology, Poznań University of Technology

Publikacja: 10.11.2014

Status artykułu: Otwarte __T_UNLOCK

Licencja: Żadna

Udział procentowy autorów:

Szymon Woziwodzki (Autor) - 50%
Lubomira Broniarz-Press (Autor) - 50%

Korekty artykułu:

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Języki publikacji:

Angielski

Liczba wyświetleń: 1627

Liczba pobrań: 1106