Hydrodynamic Cavitation
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Hydrodynamic Cavitation
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Author : Vivek V. Ranade
language : en
Publisher: John Wiley & Sons
Release Date : 2022-10-17
Hydrodynamic Cavitation written by Vivek V. Ranade and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-10-17 with Technology & Engineering categories.
Hydrodynamic Cavitation A systematic introduction to critical technologies and applications of hydrodynamic cavitation In Hydrodynamic Cavitation: Devices, Design, and Applications, a distinguished team of researchers delivers an authoritative discussion of key aspects of hydrodynamic cavitation, including the design, characterization, and modeling of the devices. The book offers discussions of state-of-the-art applications of the technology, including the disinfection of water, wastewater treatment, biomass processing, and many other industrial applications. In addition to expansive case studies, the book provides an up-to-date exploration of emerging innovations and future applications of the technology. Readers will also find: A thorough introduction to hydrodynamic cavitation devices, including those based on axial and rotational flows An in-depth examination of the experimental characterization of cavitation devices and computational models Comprehensive explorations of the applications of hydrodynamic cavitation, including the disinfection of water and wastewater treatment Accessible discussions of industrial applications of hydrodynamic cavitation Perfect for chemical and process engineers, water chemists, mechanical engineers, and food chemists, Hydrodynamic Cavitation will also earn a place in the libraries of food and environmental technologists.
Application Of Hydrodynamic Cavitation In Environmental Engineering
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Author : Janusz Ozonek
language : en
Publisher: CRC Press
Release Date : 2012-03-06
Application Of Hydrodynamic Cavitation In Environmental Engineering written by Janusz Ozonek and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-03-06 with Science categories.
Containing the state-of-the-art in hydrodynamic cavitation, the book consists of two parts. The first part presents the physical basis of cavitation and a systematic classification of various kinds of cavitation and their formation sources. Special attention is paid to a group of factors that promote cavitation formation in natural liquids. A gener
Hydrodynamic Cavitation
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Author : Lida Meshell
language : en
Publisher: Independently Published
Release Date : 2021-04-02
Hydrodynamic Cavitation written by Lida Meshell and has been published by Independently Published this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-04-02 with categories.
Hydrodynamic cavitation (HC) has been explored by many researchers over the years after the first publication on hydrolysis of fatty oils using HC was published by Pandit and Joshi [Pandit AB, Joshi JB. Hydrolysis of fatty oils: effect of cavitation. Chem Eng Sci 1993; 48: 3440-3442]. Before this publication, most of the studies related to cavitation in hydraulic system were concentrated to avoid the generation of cavities/cavitating conditions. The fundamental concept was to harness the energy released by cavities in a positive way for various chemical and mechanical processes. The author, among novelties described later in his 600 patent applications and publications, pioneered in using hydrodynamic and electrophysical cavitation for numerous technological processes. Then the only known use was ships supercavitation propulsion.
Cavitation Reaction Engineering
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Author : Y.T. Shah
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Cavitation Reaction Engineering written by Y.T. Shah and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
The literature on cavitation chemistry is ripe with conjectures, possibilities, heuris tic arguments, and intelligent guesses. The chemical effects of cavitation have been explained by means of many theories, consisting of empirical constants, adjustable parameters, and the like. The chemists working with cavitation chemistry agree that the phenomenon is very complex and system specific. Mathematicians and physi cists have offered partial solutions to the observed phenomena on the basis of cavitation parameters, whereas chemists have attempted explanations based on the modes of reaction and the detection of intermediate chemical species. Nevertheless, no one has been able to formulate a unified theme, however crude, for its effects on the basis of the known parameters, such as cavitation and transient chemistry involving extremely high temperatures of nanosecond durations. When one surveys the literature on cavitation-assisted reactions, it is clear that the approach so far has been "Edisonian" in nature. While a large number of reactions have showed either enhanced yields or reduced reaction times, many reactions have remained unaffected in the presence of cavitation. The success or failure of cavitation reactions ultimately depends on the collapse of the cavity. Cavitation chemistry is based on the principles of the formation of small transient cavities, their growth and implosion, which produce chemical reactions caused by the generation of extreme pressures and temperatures and a high degree of micro turbulence.
Fundamental Understanding On The Inception Of Hydrodynamic Cavitation And Its Generated Microbubbles In Fine Particle Flotation
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Author : Mingda Li
language : en
Publisher:
Release Date : 2022
Fundamental Understanding On The Inception Of Hydrodynamic Cavitation And Its Generated Microbubbles In Fine Particle Flotation written by Mingda Li and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022 with Cavitation categories.
Hydrodynamic cavitation is a frequently occurring phenomenon with positive and negative implications. Research has been mostly conducted to avoid cavitation in the last century because it is the major cause of corrosion in the marine industry. With the progress of science and technology, hydrodynamic cavitation is now used as an innovative process for enhancing chemical reactions and water disinfection. Most importantly, it has shown great potential in improving the flotation recovery of fine mineral particles. With the pros and cons, understanding the promotion and prevention mechanisms and controlling the inception of hydrodynamic cavitation become essential for industrial applications. In this thesis, Venturi tubes were used as the hydrodynamic cavitation devices by inducing low static pressure in the throat region. In contrast to the visualization techniques used in the previous research, the cavitation inceptions were measured by detecting the high magnitude energy at the instant of bubble burst. The addition of NaCl was shown to promoted cavitation inceptions. And the results were explained by the increase in air saturation level with lowered water solubility. Based on this idea, an innovative control method of cavitation inception was proposed by modifying the CO2 solubility by changing the pH of carbonated water. The reversibility of the process was also demonstrated. In mineral flotation, the hydrodynamic cavitation-generated microbubbles act as an efficient aid for improving fine particle recovery. The process involving particles and tube walls is considered three-phase hydrodynamic cavitation. Experimental studies were performed to better understand the cavitation behavior in the presence of solids with different surface hydrophobicity and surface structure. Results demonstrated that hydrodynamic cavitation was promoted by particles with low wettabilities but was barely affected by the particle size and roughness. Tests performed using Venturi tubes of different materials demonstrated the similar effect of the wall as particles. Hydrodynamic cavitation was promoted by a more hydrophobic Venturi tube which screened the effect of particle surface properties. The different behaviors of hydrodynamic cavitation with particles of various wettabilities suggested its potential to achieve not only high recovery but also high grade in particle flotation. This effect of hydrodynamic cavitation on the selective flotation of fine particles was further investigated from a detailed mechanism. The single-bubble flotation experiment indicated that the bubble-particle collection efficiencies of hydrophobic fine silica particles were improved significantly after hydrodynamic cavitation compared to the hydrophilic ones. The results were explained from three perspectives: (1) The strong attachment between microbubble and hydrophobic particles after hydrodynamic cavitation was demonstrated using zeta potential measurements; (2) The formation of large aggregates of hydrophobic fine particles after cavitation was revealed by slurry turbidity and particle size measurements; (3) The attachment efficiency between solid and flotation bubbles was enhanced with cavitation-generated microbubbles on solid surfaces. In the end, the beneficial effect of hydrodynamic cavitation in fine particle flotation was demonstrated in bench-scale flotation tests.
Light Emission From Hydrodynamic Cavitation
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Author : Frank Bernard Peterson
language : en
Publisher:
Release Date : 1966
Light Emission From Hydrodynamic Cavitation written by Frank Bernard Peterson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with Cavitation categories.
Cavitation And Supercavitation
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Author : M. A. Zaher
language : en
Publisher:
Release Date : 2015-10-09
Cavitation And Supercavitation written by M. A. Zaher and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-10-09 with categories.
Cavitation is the formation of voids or bubbles containing vapor and gas in an otherwise homogeneous fluid in regions where the pressure falls locally to that of the vapor pressure corresponding to ambient temperature. The regions of low pressure may be associated with either a high fluid velocity or vibration. Cavitation is an important factor in many areas of science, engineering, and occurs in many industrial processes. The book covers four general topic areas:1- The basic characteristics and physical mechanics of hydrodynamic cavitation,2- Cavitation damage from the viewpoint of both the hydrodynamic process and the reaction of particular materials.3- Cavitation study methods and equipment for research and performance testing.4- Cavitation effects in flow passages and hydraulic equipment and on fixed and free bodies.The book is intended as a combination of a reference book for those who work with cavitation, and as a monograph for advanced students interested in some of the basic problems associated with multi-phase flow. It is ideal for graduate students and research engineers and scientists.
Cavitation
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Author : Sivakumar Manickam
language : en
Publisher: CRC Press
Release Date : 2014-08-05
Cavitation written by Sivakumar Manickam and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-08-05 with Science categories.
As nanomaterials and their end products occupy the pinnacle position of consumer markets, it becomes vital to analyze their generation processes. One of the green chemistry principles underlines the need for unusual energy sources to generate them. Utilizing the extreme energy from the collapse of cavitation bubbles, generated by either ultrasound or hydrodynamic forces, for the generation of nanomaterials is a merit to consider in this "Green Chemical Processing Era." A wide range of nanomaterials have been developed in the past decade using cavitation or coupling cavitation with other techniques such as microwave, photochemistry, and electrochemistry, resulting in nanomaterials with unique morphologies, reduced size, narrow size distribution, and innumerous advantages. While a few currently available books deal with the fundamental aspects of cavitation and sonochemistry, this book is devoted specifically to the technologically important nanomaterials obtained by cavitation.
Cavitation In Non Newtonian Fluids
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Author : Emil Brujan
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-09-28
Cavitation In Non Newtonian Fluids written by Emil Brujan and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-09-28 with Technology & Engineering categories.
Non-Newtonian properties on bubble dynamics and cavitation are fundamentally different from those of Newtonian fluids. The most significant effect arises from the dramatic increase in viscosity of polymer solutions in an extensional flow, such as that generated about a spherical bubble during its growth or collapse phase. In addition, many biological fluids, such as blood, synovial fluid, and saliva, have non-Newtonian properties and can display significant viscoelastic behaviour. This monograph elucidates general aspects of bubble dynamics and cavitation in non-Newtonian fluids and applies them to the fields of biomedicine and bioengineering. In addition it presents many examples from the process industries. The field is strongly interdisciplinary and the numerous disciplines involve have and will continue to overlook and reinvent each others’ work. This book helps researchers to think intuitively about the diverse physics of these systems, to attempt to bridge the various communities involved, and to convey the interest, elegance, and variety of physical phenomena that manifest themselves on the micrometer and microsecond scales.
The Hydrodynamics Of Cavitating Flows
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Author : Alexey G.. Terentiev
language : en
Publisher:
Release Date : 2011
The Hydrodynamics Of Cavitating Flows written by Alexey G.. Terentiev and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Cavitation categories.