Download or read book Evaporation of Single Drops in Superheated Vapor written by August Maris Trommelen and published by . This book was released on 1968 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ASME 68 HT 11 written by Kwan Lee and published by . This book was released on 1968 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Evaporation of Drops from Super heated Nano engineered Surfaces written by Fiona Rachel Hughes and published by . This book was released on 2009 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: In pool boiling and spray cooling the Leidenfrost point marks the transition from nucleate boiling, in which the evaporating liquid is in contact with the surface, and film boiling, in which a layer of vapor separates the fluid from the surface. For a single evaporating drop, the Leidenfrost point occurs when the capillary and gravitational forces are surpassed by the upward pressure of the escaping vapor. This thesis develops an analytical model to predict the Leidenfrost point for a microstructured surface. The microstructure consists of a regular array of square posts geometrically defined by aspect ratio and spacing ratio. The vapor pressure is modeled using the momentum equation for flow in a porous medium. Varying the geometric parameters indicated that aspect ratio and spacing ratio must be optimized to achieve the maximum Leidenfrost temperature. For a water drop evaporating from a silicon surface, the maximum Leidenfrost temperature is predicted to occur with an aspect ratio of 1.3 and a spacing ratio of 1.5. [mu]L water drops were evaporated from a smooth surface made of silicon and porous surfaces made of aluminum oxide. The microstructure of the surfaces was different from that modeled, but increased wettability and higher Leidenfrost temperatures were observed as porosity increased. Recommendations for further research in this area are made.
Download or read book Heat Transfer and Evaporation written by Walter Lucius Badger and published by . This book was released on 1926 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Droplet Dynamics Under Extreme Ambient Conditions written by Kathrin Schulte and published by Springer Nature. This book was released on 2022 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Transport Phenomena with Drops and Bubbles written by Satwindar S. Sadhal and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Heat Transfer at Low Temperatures written by Walter Frost and published by Springer Science & Business Media. This book was released on 2013-11-22 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Convective Heat and Mass Transfer written by S. Mostafa Ghiaasiaan and published by CRC Press. This book was released on 2018-06-12 with total page 631 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Direct Contact Heat Transfer written by Frank Kreith and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: to increase the use of direct contact processes, the National Science Foundation sup ported a workshop on direct contact heat transfer at the Solar Energy Research Insti tute in the summer of 1985. We served as organizers for this workshop, which em phasized an area of thermal engineering that, in our opinion, has great promise for the future, but has not yet reached the point of wide-spread commercial application. Hence, a summary of the state of knowledge at this point is timely. The workshop had a dual objective: 1. To summarize the current state of knowledge in such a form that industrial practi tioners can make use of the available information. 2. To indicate the research and development needed to advance the state-of-the-art, indicating not only what kind of research is needed, but also the industrial poten tial that could be realized if the information to be obtained through the proposed research activities were available.
Download or read book Flow and Heat or Mass Transfer in the Chemical Process Industry written by Dimitrios V. Papavassiliou and published by MDPI. This book was released on 2018-09-28 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Flow and Heat or Mass Transfer in the Chemical Process Industry" that was published in Fluids
Download or read book The Universal Cyclopaedia written by and published by . This book was released on 1900 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hazardous Substances on Spillage written by David Carter and published by IChemE. This book was released on 1995 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work contains the report from a working party on Source Terms dealing with loss of containment of hazardous substances in process plants. It is part of a series of monographs published by the IChemE on toxicity, explosive overpressure, thermal radiation and ammonia toxicity.
Download or read book Shock Waves Proceedings Of The 20th International Symposium In 2 Volumes written by Hans G Hornung and published by World Scientific. This book was released on 1997-01-22 with total page 1740 pages. Available in PDF, EPUB and Kindle. Book excerpt: The symposia take place every two years. They are the forum at which scientists concerned with shock waves present their research. They USE shock waves for chemical kinetics studies, for materials studies, and smashing kidney stones; they STUDY the phenomena associated with flows involving shock waves, such as supersonic flow, explosions, detonations, volcanic eruptions, and, in this symposium, even such with-it topics as impact of Shoemaker-Levy on Jupiter and blast waves in the World Trade Center. They also discover new, bigger and better ways of generating flows at hypervelocity speeds and develop their technological tools further.The international exchange of information is documented in the proceedings volumes, which have become a storehouse of information on the subject, documenting the history of this peculiar branch of science that involves chemists, physicists, engineers, geophysicists, material scientists and biologists.
Download or read book The CRC Handbook of Thermal Engineering written by Frank Kreith and published by Springer Science & Business Media. This book was released on 2000-02-01 with total page 1214 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is unique in its in-depth coverage of heat transfer and fluid mechanics including numerical and computer methods, applications, thermodynamics and fluid mechanics. It will serve as a comprehensive resource for professional engineers well into the new millennium. Some of the material will be drawn from the "Handbook of Mechanical Engineering," but with expanded information in such areas as compressible flow and pumps, conduction, and desalination.
Download or read book Non equilibrium Evaporation and Condensation Processes written by Yuri B. Zudin and published by Springer. This book was released on 2017-09-14 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph presents a comprehensive treatment of analytical solutions to problems in the area of non-equilibrium evaporation and condensation processes. The book covers, among others, topics such as systems of conversation equations for molecular fluxes of mass, momentum and energy within the Knudsen layer, spherical growth of vapor bubbles in volumes of highly superheated liquid. The target audience primarily comprises research experts in the field of thermodynamics and fluid dynamics, but the book may also be beneficial for graduate students alike.
Download or read book Universal Cyclop dia and Atlas written by and published by . This book was released on 1901 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heat Recovery with Commercial Institutional and Industrial Heat Pumps written by Vasile Minea and published by CRC Press. This book was released on 2024-06-03 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heat Recovery with Commercial, Institutional, and Industrial Heat Pumps presents the basic concepts and thermodynamic behavior of mechanical vapor compression and recompression. It covers both ammonia water absorption and compression/resorption heat pumps. Including theoretical and practical approaches, the book features numerous solved exercises based on real thermodynamic and climatic parameters and case studies with takeaways from on-site experiences to help the reader better identify the advantages and limitations of each heat pumping technology. The book discusses future implementations of heat recovery heat pump technologies that are among the most energy-efficient and environmentally friendly techniques. This book will interest graduate students studying HVAC, thermal systems, and heat pumps. It will also benefit professionals working with heat pumps, industrial process engineers, manufacturers, and research and design personnel.
