Journal ArticleDOI
On impeller circulation and mixing effectiveness in the turbulent flow regime
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TLDR
In this article, an equation for mixing time recently published by BHR Group can be related to a basic turbulence model and it is also shown that this equation is superior to those based on a theory linking mixing time to the flow generated by the impeller.About:
This article is published in Chemical Engineering Science.The article was published on 1997-08-01. It has received 292 citations till now. The article focuses on the topics: Slip factor & Impeller.read more
Citations
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Journal ArticleDOI
Computational fluid dynamics (CFD) ¿ an effective and efficient design and analysis tool for the food industry: A review
Tomas Norton,Da-Wen Sun +1 more
TL;DR: In this paper, the authors discuss the fundamentals involved in developing a CFD solution and provide a state-of-the-art review on various CFD applications in the food industry such as ventilation, drying, sterilisation, refrigeration, cold display and storage, and mixing.
Journal ArticleDOI
Mixing in large-scale vessels stirred with multiple radial or radial and axial up-pumping impellers: modelling and measurements
TL;DR: In this article, the authors used the Compartment Model Approach (CMA) to develop a flow model based on the general knowledge of the hydrodynamics of both unaerated and aerated stirred vessels.
Journal ArticleDOI
Scale-up analysis for a CHO cell culture process in large-scale bioreactors.
TL;DR: Empirical equations were developed to predict mixing time, oxygen transfer coefficient, and carbon dioxide removal rate under different mixing‐related engineering parameters in the 5,000‐L bioreactors and indicate that increasing bottom air sparging rate is more efficient than increasing power input in improving oxygen transfer andcarbon dioxide removal.
Book ChapterDOI
Mixing and the Selectivity of Chemical Reactions
TL;DR: Many desirable organic reactions are accompanied by side reactions and undesired by-products, which waste raw materials and complicate product work-up and isolation as discussed by the authors, which is undesirable and unnecessary.
Journal ArticleDOI
High shear mixers: A review of typical applications and studies on power draw, flow pattern, energy dissipation and transfer properties
Jinli Zhang,Shuangqing Xu,Wei Li +2 more
TL;DR: In this article, a review of typical applications of high shear mixers have been summarized, namely liquid-liquid emulsification, solid-liquid suspension and chemical reactions, with an emphasis on the emulsion due to relatively intensive research in this area.
References
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Book
Bioreaction Engineering Principles
Jens Nielsen,John Villadsen +1 more
TL;DR: Bioreactor Modelling: Morph Structured Models for Population Balances Based on Cell Number and Mass Transfer and Cellular Growth Reactions.
Book
Basic Bioreactor Design
TL;DR: Based on a graduate course in biochemical engineering, provides the basic knowledge needed for the efficient design of bioreactors and the relevant principles and data for practical process engineering with an emphasis on enzyme reactors and aerated reactors for microorganisms.
Book
Fluid mixing and gas dispersion in agitated tanks
TL;DR: In this paper, the essentials of fluid mechanics and how to apply fundamental principles to achieve optimum time and capacity efficiency with a minimum of waste are discussed, and guidelines for performing design calculations, determining design limits and validating design methodology are provided.
Journal ArticleDOI
Flow and turbulence in a stirred tank
TL;DR: In this paper, the Navier-Stokes equations and the energy equation were used with photographic data on mean and fluctuating velocities to estimate the angular momentum at different radial sections of the tank and to calculate the flow of energy through these sections.