Energetic Efficiency of Mixing and Mass Transfer in Single Phase and Two-Phase Systems

• Autorzy: Bałdyga J. , Jasińska M.

Identyfikatory

DOI

10.1515/cpe-2017-0007

• Języki publikacji: EN

Abstrakty

EN

In this work a concept of energetic efficiency of mixing is presented and discussed; a classical definition of mixing efficiency is modified to include effects of the Schmidt number and the Reynolds number. Generalization to turbulent flows is presented as well. It is shown how the energetic efficiency of mixing as well as efficiencies of drop breakage and mass transfer in twophase liquid-liquid systems can be identified using mathematical models and test chemical reactions. New expressions for analyzing efficiency problem are applied to identify the energetic efficiency of mixing in a stirred tank, a rotor stator mixer and a microreactor. Published experimental data and new results obtained using new systems of test reactions are applied. It has been shown that the efficiency of mixing is small in popular types of reactors and mixers and thus there is some space for improvement.

Słowa kluczowe

EN

chemical test reaction; energetic efficiency; mass transfer; mixing

PL

reakcje testowe chemiczne; wydajność energetyczna; transfer masy; mieszanie

• Wydawca: Komitet Inżynierii Chemicznej i Procesowej Polskiej Akademii Nauk
• Czasopismo: Chemical and Process Engineering
• Rocznik: 2017
• Tom: Vol. 38, nr 1
• Strony: 79--96
• Opis fizyczny: Bibliogr. 18 poz., rys.

Twórcy

autor

Bałdyga J.

• Warsaw University of Technology, Faculty of Chemical and Process Engineering, ul. Wary ń skiego 1, Warsaw, Poland

autor

Jasińska M.

• Warsaw University of Technology, Faculty of Chemical and Process Engineering, ul. Waryńskiego 1, Warsaw, Poland

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)