Droplet Dynamics Under Extreme Ambient Conditions

Droplet Dynamics Under Extreme Ambient Conditions

Author: Kathrin Schulte

Publisher: Springer Nature

Published: 2022

Total Pages: 372

ISBN-13: 303109008X

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This open access book presents the main results of the Collaborative Research Center SFB-TRR 75, which spanned the period from 2010 to 2022. Scientists from a variety of disciplines, ranging from thermodynamics, fluid mechanics, and electrical engineering to chemistry, mathematics, computer science, and visualization, worked together toward the overarching goal of SFB-TRR 75, to gain a deep physical understanding of fundamental droplet processes, especially those that occur under extreme ambient conditions. These are, for example, near critical thermodynamic conditions, processes at very low temperatures, under the influence of strong electric fields, or in situations with extreme gradients of boundary conditions. The fundamental understanding is a prerequisite for the prediction and optimisation of engineering systems with droplets and sprays, as well as for the prediction of droplet-related phenomena in nature. The book includes results from experimental investigations as well as new analytical and numerical descriptions on different spatial and temporal scales. The contents of the book have been organised according to methodological fundamentals, phenomena associated with free single drops, drop clusters and sprays, and drop and spray phenomena involving wall interactions.


Superheated Steam Drying

Superheated Steam Drying

Author: Mukund Haribhau Bade

Publisher: CRC Press

Published: 2024-10-22

Total Pages: 207

ISBN-13: 104014781X

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Superheated steam drying (SSD) has long been recognized for several major advantages it offers over other convective dryers, including high energy efficiency by utilization of energy in the exhaust steam, higher product quality due to the absence of oxygen, and avoidance of fire and explosion hazards. Offering a global critical overview of the current state of art, Superheated Steam Drying: Technology for Improved Sustainability and Quality assesses future needs and opportunities for industry adoption and further innovation in SSD. It covers SSD technologies for various industrial sectors and mathematical modeling approaches to help with design and scale-up. The effects of SSD on drying kinetics as well as product quality are also discussed with examples. This book serves as a useful reference for technicians, graduate students, and researchers in the field of drying technology. It can also be used in courses on industrial drying, processing and drying of food, advanced drying technology, and superheated steam drying.


Transport Phenomena with Drops and Bubbles

Transport Phenomena with Drops and Bubbles

Author: Satwindar S. Sadhal

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 528

ISBN-13: 1461240220

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Fluid flows that transfer heat and mass often involve drops and bubbles, particularly if there are changes of phase in the fluid in the formation or condensation of steam, for example. Such flows pose problems for the chemical and mechanical engineer significantly different from those posed by single-phase flows. This book reviews the current state of the field and will serve as a reference for researchers, engineers, teachers, and students concerned with transport phenomena. It begins with a review of the basics of fluid flow and a discussion of the shapes and sizes of fluid particles and the factors that determine these. The discussion then turns to flows at low Reynolds numbers, including effects due to phase changes or to large radial inertia. Flows at intermediate and high Reynolds numbers are treated from a numerical perspective, with reference to experimental results. The next chapter considers the effects of solid walls on fluid particles, treating both the statics and dynamics of the particle-wall interaction and the effects of phase changes at a solid wall. This is followed by a discussion of the formation and breakup of drops and bubbles, both with and without phase changes. The last two chapters discuss compound drops and bubbles, primarily in three-phase systems, and special topics, such as transport in an electric field.


Heat Transfer at Low Temperatures

Heat Transfer at Low Temperatures

Author: Walter Frost

Publisher: Springer Science & Business Media

Published: 2013-11-22

Total Pages: 366

ISBN-13: 1489919988

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The purposes of this book are to provide insight and to draw attention to problems peculiar to heat transfer at low temperatures. This does not imply that the theories of classical heat transfer fail at low temperatures, but rather that many of the approximations employed in standard solutions techniques are not valid in this regime. Physical properties, for example, have more pronounced variations at low temperatures and cannot, as is conventionally done, be held constant. Fluids readily become mixtures of two or more phases and their analysis is different from that for a single-phase fluid. These and other problems which occur more frequently at low temperatures than at standard conditions are discussed in this book. Although the title specifies heat transfer, the book also contains a very comprehensive chapter on two-phase fluid flow and a partial chapter on the flow of fluids in the thermodynamically critical state. Emphasis is placed on those flow phenomena that occur at low temperatures. Flow analyses are, of course, a prerequisite to forced-convection heat transfer analyses, and thus these chapters add continuity to the text. The book is primarily written for the design engineer, but does broach many topics which should prove interesting to the researcher. For the student and teacher the book will serve as a useful reference and possibly as a text for a special topics course in heat transfer.


Convective Heat and Mass Transfer

Convective Heat and Mass Transfer

Author: S. Mostafa Ghiaasiaan

Publisher: CRC Press

Published: 2018-06-12

Total Pages: 788

ISBN-13: 1351112732

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Convective Heat and Mass Transfer, Second Edition, is ideal for the graduate level study of convection heat and mass transfer, with coverage of well-established theory and practice as well as trending topics, such as nanoscale heat transfer and CFD. It is appropriate for both Mechanical and Chemical Engineering courses/modules.


Heat Exchangers

Heat Exchangers

Author: Sadik KakaƧ

Publisher: CRC Press

Published: 2012-03-01

Total Pages: 624

ISBN-13: 1439849919

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Heat exchangers are essential in a wide range of engineering applications, including power plants, automobiles, airplanes, process and chemical industries, and heating, air conditioning and refrigeration systems. Revised and updated with new problem sets and examples, Heat Exchangers: Selection, Rating, and Thermal Design, Third Edition presents a


Dehydration of food

Dehydration of food

Author: Joint Committee of the National Association of Fan Manufacturers and the American Society of Heating and Ventilation Engineers

Publisher:

Published: 1923

Total Pages: 290

ISBN-13:

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