Rate Of Evaporation From Sprays Of Pure Liquid Drops
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Rate Of Evaporation From Sprays Of Pure Liquid Drops
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Author : Dean Richard Dickinson
language : en
Publisher:
Release Date : 1958
Rate Of Evaporation From Sprays Of Pure Liquid Drops written by Dean Richard Dickinson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1958 with Drops categories.
A Method For Calculating The Rate Evaporation And The Change In Drop Size Distribution For Pure Sprays Injected Into Unsaturated Air
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Author : MYRON TRIBUS
language : en
Publisher:
Release Date : 1952
A Method For Calculating The Rate Evaporation And The Change In Drop Size Distribution For Pure Sprays Injected Into Unsaturated Air written by MYRON TRIBUS and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1952 with categories.
Report
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Author : United States. National Advisory Committee for Aeronautics
language : en
Publisher:
Release Date : 1957
Report written by United States. National Advisory Committee for Aeronautics and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1957 with Aeronautics categories.
Report
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Author :
language : en
Publisher:
Release Date : 1957
Report written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1957 with Aeronautics categories.
Rates Of Evaporation In Spray Drying
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Author : Neil Darrel Cox
language : en
Publisher:
Release Date : 1962
Rates Of Evaporation In Spray Drying written by Neil Darrel Cox and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1962 with Spray drying categories.
Evaporation And Droplet Growth In Gaseous Media
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Author : N.A. Fuchs
language : en
Publisher: Elsevier
Release Date : 2013-10-22
Evaporation And Droplet Growth In Gaseous Media written by N.A. Fuchs and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-22 with Science categories.
Evaporation and Droplet Growth in Gaseous Media deals with the evaporation of droplets of liquid in gaseous media and the reverse process of droplet growth in a medium supersaturated with the vapor of the liquid. Thediscussion is restricted to the kinetics of evaporation and growth of droplets of pure liquids (and heat transfer to the same). Comprised of three chapters, this book first examines the quasi-stationary evaporation and growth of droplets that are motionless relative to the medium and the hydrodynamic factor is absent. The Maxwell equation, the basis of the theory of evaporation of droplets in a gaseous medium, is taken into account. The influence of the Stefan flow and the concentration change at the surface on the rate of evaporation are considered, along with the evaporation of droplets in a vessel with absorbing walls and the fall in temperature of both free evaporating droplets and supported evaporating droplets. The second chapter is devoted to the quasi-stationary evaporation of droplets in a stream of gas, that is, droplets moving relative to the medium. The last chapter focuses on non-stationary evaporation and growth of droplets that either motionless or moving relative to the medium. This monograph will be of interest to students, practitioners, and researchers in inorganic and structural chemistry.
Evaporation Precipitation Dynamics And Instability Of Acoustically Levitated Functional Droplets
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Author : Abhishek Saha
language : en
Publisher:
Release Date : 2012
Evaporation Precipitation Dynamics And Instability Of Acoustically Levitated Functional Droplets written by Abhishek Saha and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
Evaporation of pure and binary liquid droplets is of interest in thermal sprays and spray drying of food, ceramics and pharmaceutical products. Understanding the rate of heat and mass transfer in any drying process is important not only to enhance evaporation rate or vapor-gas mixing, but also to predict and control the final morphology and microstructure of the precipitates. Acoustic levitation is an alternative method to study micron-sized droplets without wall effects, which eliminates chemical and thermal contamination with surfaces. This work uses an ultrasonic levitation technique to investigate the vaporization dynamics under radiative heating, with focus on evaporation characteristics, precipitation kinetics, particle agglomeration, structure formation and droplet stability. Timescale and temperature scales are developed to compare convective heating in actual sprays and radiative heating in the current experiments. These relationships show that simple experiments can be conducted in a levitator to extrapolate information in realistic convective environments in spray drying. The effect of acoustic streaming, droplet size and liquid properties on internal flow is important to understand as the heat and mass transfer and particle motion within the droplet is significantly controlled by internal motion. Therefore, the droplet internal flow is characterized by Particle Image Velocimetry for different dropsize and viscosity. Nanosuspension droplets suspended under levitation show preferential accumulation and agglomeration kinetics. Under certain conditions, they form bowl shaped structures upon complete evaporation. At higher concentrations, this initial bowl shaped structure morphs into a ring structure. Nanoparticle migration due to internal recirculation forms a density stratification, the location of which depends on initial particle concentration. The time scale of density stratification is similar to that of perikinetic-driven agglomeration of particle flocculation. The density stratification ultimately leads to force imbalance leading to a unique bowl-shaped structure. Chemically active precursor droplet under acoustic levitation shows events such as vaporization, precipitation and chemical reaction leading to nanoceria formation with a porous morphology. The cerium nitrate droplet undergoes phase and shape changes throughout the vaporization process followed by formation of precipitate. Ex-situ analyses using TEM and SEM reveal highly porous morphology with trapped gas pockets and nanoceria crystalline structures at 70°C. Inhomogeneity in acoustic pressure around the heated droplet can induce thermal instability. Short wavelength (Kelvin-Helmholtz) instability for diesel and bio-diesel droplets triggers this secondary atomization, which occurs due to relative velocity between liquid and gas phase at the droplet equator. On the other hand, liquids such as Kerosene and FC43 show uncontrollable stretching followed by a catastrophic break-up due to reduction in surface tension and viscosity coupled with inhomogeneity of pressure around the droplet. Finally, a scaling analysis has been established between vaporizing droplets in a convective and radiative environment. The transient temperature normalized by the respective scales exhibits a unified profile for both modes of heating. The analysis allows for the prediction of required laser flux in the levitator experiments to show its equivalence in a corresponding heated gas stream. The theoretical equivalence shows good agreement with experiments for a range of droplet sizes.
Basic Considerations In The Combustion Of Hydrocarbon Fuels With Air
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Author : Lewis Flight Propulsion Laboratory. Propulsion Chemistry Division
language : en
Publisher:
Release Date : 1958
Basic Considerations In The Combustion Of Hydrocarbon Fuels With Air written by Lewis Flight Propulsion Laboratory. Propulsion Chemistry Division and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1958 with Airplanes categories.
Atomization And Sprays
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Author : Arthur H. Lefebvre
language : en
Publisher: CRC Press
Release Date : 2017-03-27
Atomization And Sprays written by Arthur H. Lefebvre and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-03-27 with Technology & Engineering categories.
The second edition of this long-time bestseller provides a framework for designing and understanding sprays for a wide array of engineering applications. The text contains correlations and design tools that can be easily understood and used in relating the design of atomizers to the resulting spray behavior. Written to be accessible to readers with a modest technical background, the emphasis is on application rather than in-depth theory. Numerous examples are provided to serve as starting points for using the information in the book. Overall, this is a thoroughly updated edition that still retains the practical focus and readability of the original work by Arthur Lefebvre.
Coulson And Richardson S Chemical Engineering
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Author : Ajay Kumar Ray
language : en
Publisher: Butterworth-Heinemann
Release Date : 2023-06-30
Coulson And Richardson S Chemical Engineering written by Ajay Kumar Ray and has been published by Butterworth-Heinemann this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-06-30 with Technology & Engineering categories.
Coulson and Richardson’s Chemical Engineering: Volume 2B, Separation Processes, Sixth Edition, covers distillation and gas absorption, illustrating applications of the fundamental principles of mass transfer. Several techniques, including adsorption, ion exchange, chromatographic membrane separations and process intensification are comprehensively covered and explored. Presents content converted from textbooks into fully revised reference material Provides content that ranges from foundational to technical Includes new additions, such as emerging applications, numerical methods, and computational tools