Gas Dispersion Performance of Radial and Mixed Flow Impellers PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Gas Dispersion Performance of Radial and Mixed Flow Impellers PDF full book. Access full book title Gas Dispersion Performance of Radial and Mixed Flow Impellers by D. Birch. Download full books in PDF and EPUB format.
Author: D. Birch
Publisher:
ISBN:
Category : Chemical engineering
Languages : en
Pages : 21
Get Book Here
Book Description
Author: D. Birch
Publisher:
ISBN:
Category : Chemical engineering
Languages : en
Pages : 21
Get Book Here
Book Description
Author: Muneeb Ur Rahman Shaik
Publisher:
ISBN:
Category : Gas-liquid interfaces
Languages : en
Pages : 49
Get Book Here
Book Description
Despite known advantages of up-pumping wide-blade axial-flow impellers for gas dispersion, little is known about the design guidelines of these impellers. In the present study, the gas dispersion capabilities of the up-pumping axial-flow Maxflo W impeller in low-viscosity liquids have been characterized to incorporate effects of scale and system geometry. Further, a comparison is made with the dispersion performance of an up-pumping pitch-blade turbine and a radial-flow CD-6. This comparison showed that the up-pumping Maxflo W impeller have dispersion speed, torque and power requirements relatively independent of the gas flow rate, providing the ability to handle varying process conditions.Testing at three scales (tank diameters of 0.29 m, 0.44 m and 0.60 m) indicates that the dispersion capabilities of the up-pumping Maxflo W can be described in terms of a scale-independent aeration number - Froude number relationship. Although a minimum impeller rotational speed is required to disperse low gas flows, the increase in dispersion speed is small with increasing gas flow rate. The effects of geometric parameters such as impeller to tank diameter ratio, sparger size and ungassed liquid height on flooded to dispersed conditions have been investigated. Unlike radial-flow gas dispersion impellers that are not strongly affected by some geometric parameters, the up-pumping Maxflo W dispersion performance is strongly dependent on system geometric parameters. Additionally, small impeller to tank diameter ratios of Maxflo W impellers have been found to perform poorly in gas dispersion operations because of their highly axial discharge flow.It was found that the up-pumping pitched-blade turbine exhibits time-dependent dispersion behavior that can permanently fail to disperse gas after appearing to be capable of dispersion for a reasonably long period of time. For this reason, collection of design data required extended and meticulous testing.
Author: Thomas Martin
Publisher: Herbert Utz Verlag
ISBN: 9783896751041
Category : Bubbles
Languages : en
Pages : 262
Get Book Here
Book Description
Author: Max Joseph Miller
Publisher:
ISBN:
Category : Cavitation
Languages : en
Pages : 58
Get Book Here
Book Description
Author: Andreas von Kovats
Publisher:
ISBN:
Category : Axial-flow pumps
Languages : en
Pages : 496
Get Book Here
Book Description
Author: Dinh Chuong Pham
Publisher:
ISBN:
Category : Mixing machinery
Languages : en
Pages : 256
Get Book Here
Book Description
Author: E. Goldberg
Publisher: Springer Science & Business Media
ISBN: 9400915632
Category : Science
Languages : en
Pages : 745
Get Book Here
Book Description
The last two decades have seen a phenomenal growth of the field of genetic or biochemical engineering and have witnessed the development and ultimately marketing of a variety of products-typically through the manipulation and growth of different types of microorganisms, followed by the recovery and purification of the associated products. The engineers and biotechnologists who are involved in the full-scale process design of such facilities must be familiar with the variety of unit operations and equipment and the applicable regulatory requirements. This book describes current commercial practice and will be useful to those engineers working in this field in the design, construction and operation of pharmaceutical and biotechnology plants. It will be of help to the chemical or pharmaceutical engineer who is developing a plant design and who faces issues such as: Should the process be batch or continuous or a combination of batch and continuous? How should the optimum process design be developed? Should one employ a new revolutionary separation which could be potentially difficult to validate or use accepted technology which involves less risk? Should the process be run with ingredients formulated from water for injection, deionized water, or even filtered tap water? Should any of the separations be run in cold rooms or in glycol jacketed lines to minimize microbial growth where sterilization is not possible? Should the process equipment and lines be designed to be sterilized in-place, cleaned-in-place, or should every piece be broken down, cleaned and autoclaved after every turn?
Author: Eugene B. Laskin
Publisher:
ISBN:
Category :
Languages : en
Pages : 16
Get Book Here
Book Description
Author: Bhaskar Sen Gupta
Publisher: Springer Science & Business Media
ISBN: 9401722900
Category : Science
Languages : en
Pages : 333
Get Book Here
Book Description
We are honoured to present this collection of selected papers from the International Conference on Mixing and Crystallization, held at the Tioman Island, Malaysia in April, 1998. We are grateful to the editorial board comprising five eminent researchers in the field of mixing and crystallization for their thoughtful review and suggestions. In order to make this book as current as possible some of the papers have been thoroughly revised, which caused some delay in bringing out this edited version. We received necessary support from the Institute of Post Graduate Studies and Research, the University of Malaya and the Special Research Centre for Multiphase Processes, and the University of Newcastle, Australia in organizing this conference. We are indebted to the Institute of Chemical Engineers, United Kingdom, and the Institution of Engineers, Malaysia for their sponsorship. We would like to thank K.C. Lim, Dr. C. Ramakanth and Ms. Zubaidah for their help at the various stages of editing. We would also like to express our gratitude to Professor Mohd. Ali Hashim and Dr. Nafis Ahmed for their help and encouragement. Finally, I would like to thank Kluwer Academic Publishers for publishing this book. Bhaskar Sen Gupta Shaliza Ibrahim University of Malaya, Kuala Lumpur xi CFD MODELLING OF HYDRODYNAMIC CONDITIONS WITHIN THE WAKE OF MIXING IMPELLER BLADES 1 G.D. RIGByl., G. LANE . AND G.M. EVANSl.
Author: Gregory T. Benz
Publisher: John Wiley & Sons
ISBN: 1119650534
Category : Technology & Engineering
Languages : en
Pages : 448
Get Book Here
Book Description
AGITATOR DESIGN FOR GAS-LIQUID FERMENTERS AND BIOREACTORS Explore the basic principles and concepts of the design of agitation systems for fermenters and bioreactors Agitator Design for Gas-Liquid Fermenters and Bioreactors delivers a concise treatment and explanation of how to design mechanically sound agitation systems that will perform the agitation process function efficiently and economically. The book covers agitator fundamentals, impeller systems, optimum power and air flow at peak mass transfer calculations, optimizing operation for minimum energy per batch, heat transfer surfaces and calculations, shaft seal considerations, mounting methods, mechanical design, and vendor evaluation. The accomplished author has created a practical and hands-on tool that discusses the subject of agitation systems from first principles all the way to implementation in the real world. Step-by-step processes are included throughout the book to assist engineers, chemists, and other scientists in the design, construction, installation, and maintenance of these systems. Readers will also benefit from the inclusion of: A thorough introduction to the design of gas-liquid fermenters and bioreactors An exploration of agitator fundamentals, impeller systems, optimum power, and air flow at peak mass transfer calculations A discussion of how to optimize operation for minimum energy per batch Step-by-step processes to assist engineers, chemists, and scientists An examination of heat transfer surfaces and calculations, shaft seal considerations, mounting methods, and mechanical design Perfect for chemical engineers, mechanical engineers, process engineers, chemists, and materials scientists, Agitator Design for Gas-Liquid Fermenters and Bioreactors will also earn a place in the libraries of pharmaceutical scientists seeking a one-stop resource for designing mechanically sound agitation systems.
