Download or read book Transport Phenomena in Capillary Porous Structures and Heat Pipes written by Henry Smirnov and published by CRC Press. This book was released on 2009-07-29 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two-phase nano- and micro-thermal control device research is now proving relevant to a growing range of modern applications, including those in cryogenics, thermal engineering, MEMS, and aerospace engineering. Until now, researchers have lacked a definitive resource that provides a complete review of micro- and nano-scale evaporative heat and mass

Download or read book Porous Media written by F. A. L. Dullien and published by . This book was released on 1992 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: Capillarity in porous media. Pore structure. Single-phase transport phenomena in porous media. Selected operations involving transport of a single fluid phase throug a porous medium. Multiphase flow of immiscible fluids in porous media. Miscible displacement and dispersion.

Download or read book Handbook of Porous Media written by Kambiz Vafai and published by CRC Press. This book was released on 2000-07-12 with total page 927 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Presents the most important and up-to-date research related to heat transfer in porous media, focusing on practical applications of the latest studies to engineering products and procedures. Includes theoretical models of fluid flow, capillary effects, application of fractal and percolation characterizing porous materials, multiphase flow and heat transfer, turbulent flow and heat transfer, improved measurement and flow visualization techniques, and enhanced design correlations."

Download or read book Experimental and Theoretical Investigations of the Physical Processes Related to the Retention Capability of a Double Screen Element against Liquid Hydrogen in Earth s Gravity and in Microgravity with Respect to the Applied Stimuli written by André Pingel and published by Cuvillier Verlag. This book was released on 2022-08-04 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal screens are commonly used as components for fluid handling in spacecraft and rocket tank designs. In most cases, the screens perform a passive separation of the propellant phases. The separation of the liquid from the gaseous propellant phase, is a special challenge. Liquid-gas phase separation means that the gaseous phase is allowed to enter a phase separation device while the liquid phase is blocked. The technical application of this process is the depressurization in a propellant tank. A certain amount of the gaseous propellant phase is vented from the tank through the gas port. The liquid propellant phase remains in the tank in order to be stored for the engine. However, if the tank causes a liquid movement during the depressurization, a part of the liquid can potentially enter the gas port. In order to prevent the unwanted liquid outflow, a separation of the liquid from the gas is necessary. This is possible with the aid of a double screen element and has already been performed for storable liquids in Earth’s gravity and microgravity as well as for cryogenic liquids in Earth’s gravity. At the current state of the art, the separation of the liquid from the gaseous phase of the cryogenic propellant hydrogen using a double screen element has not been performed in microgravity. However, with regard to a possible application, it is mandatory to investigate the function of the double screen element for the real propellant under relevant environmental conditions. In this work, a cryogenic test facility has been developed and operated successfully under Earth’s gravity and microgravity conditions using the drop tower at the University of Bremen. Hereby, the original, cryogenic propellant phases: liquid and gaseous hydrogen, have been used. The experiments show the appearance of the physical processes which are related to the retention capability of a double screen element against liquid hydrogen. Furthermore, these physical processes can obviously be influenced by an unknown boundary condition at the screens: the screen saturation. This unknown boundary condition in turn can obviously be influenced by a certain stimulus which causes a special, fluid mechanical process. A simplified mathematical and two numerical models have been developed which combine the observed, physical processes in the experiments. Two fitting parameters are introduced which influence the flow through screen pressure loss of the liquid and the gaseous hydrogen phase. After the fitting to experimental data, the two fitting parameters have been interpreted with respect to a possible screen saturation. The results lead to a prediction of the unknown boundary condition and indicate that a partial saturation of the screens with liquid could be present in each considered experiment. This can possibly lead to a major influence of the overall resistance of the double screen element against liquid hydrogen.

Download or read book Low Temperature and Cryogenic Refrigeration written by Sadik Kakaç and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: Refrigeration plays a prominent role in our everyday lives, and cryogenics plays a major role in medical science, space technology and the cooling of low-temperature electronics. This volume contains chapters on basic refrigeration systems, non-compression refrigeration and cooling, and topics related to global environmental issues, alternative refrigerants, optimum refrigerant selection, cost-quality optimization of refrigerants, advanced thermodynamics of reverse-cycle machines, applications in medicine, cryogenics, heat pipes, gas-solid absorption refrigeration, multisalt resorption heat pumps, cryocoolers, thermoacoustic refrigeration, cryogenic heat transfer and enhancement and other topics covering theory, design, and applications, such as pulse tube refrigeration, which is the most efficient of all cryocoolers and can be used in space missions.

Download or read book Capillary Transport Processes in Porous Materials written by Nicolas Fries and published by . This book was released on 2010 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Multiphase Flow and Heat Transfer written by Lixin Cheng and published by Bentham Science Publishers. This book was released on 2010-04-21 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Multiphase flow and heat transfer have found a wide range of applications in several engineering and science fields such as mechanical engineering, chemical and petrochemical engineering, nuclear engineering, energy engineering, material engineering, ocea"

Download or read book Refrigeration Systems and Applications written by Ibrahim Dinçer and published by John Wiley & Sons. This book was released on 2011-08-10 with total page 467 pages. Available in PDF, EPUB and Kindle. Book excerpt: Refrigeration Systems and Applications, 2nd edition offers a comprehensive treatise that addresses real-life technical and operational problems, enabling the reader to gain an understanding of the fundamental principles and the practical applications of refrigeration technology. New and unique analysis techniques (including exergy as a potential tool), models, correlations, procedures and applications are covered, and recent developments in the field are included - many of which are taken from the author's own research activities in this area. The book also includes some discussion of global warming issues and its potential solutions. Enables the reader to gain an understanding of the fundamental principles and the practical applications of refrigeration technologies. Discusses crucial industrial technical and operational problems, as well as new performance improvement techniques and tools for better design and analysis. Includes fundamental aspects of thermodynamics, fluid flow, and heat transfer; refrigerants; refrigeration cycles and systems; advanced refrigeration cycles and systems, including some novel applications; heat pumps; heat pipes; and many more. Provides easy to follow explanations, numerous new chapter-end problems and worked-out examples as learning aids for students and instructors. Refrigeration is extensively used in a variety of thermal engineering applications ranging from the cooling of electronic devices to food cooling processes. Its wide-ranging implications and applications mean that this industry plays a key role in national and international economies, and it continues to be an area of active research and development. Refrigeration Systems and Applications, 2nd edition forms a useful reference source for graduate and postgraduate students and researchers in academia and as well as practicing engineers working in this important field who are interested in refrigeration systems and applications and the methods and analysis tools for their analysis, design and performance improvement.

Download or read book The Chemistry and Physics of Engineering Materials written by Alexandr A. Berlin and published by CRC Press. This book was released on 2018-07-17 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new volume focuses on the limitations, properties, and models in the chemistry and physics of engineering materials that have potential for applications in several disciplines of engineering and science. Contributions range from new methods to novel applications of existing methods. The collection of topics in this volume reflects the diversity of recent advances in chemistry and physics of engineering materials with a broad perspective that will be useful for scientists as well as for graduate students and engineers. This new book presents leading-edge research from around the world. Topics in the book include: • aerogels materials and technology • diffusion dynamics in nanomaterials • entropic nomograms • structural analyses of particulate-filled polymer nanocomposites mechanical properties • protection of rubbers against aging • structure-property correlation and forecast of corrosion This volume is also sold as part of a two-volume set. Volume 1 focuses on modern analytic methodologies in the chemistry and physics of engineering materials.

Download or read book Heat Pipes written by David Reay and published by Butterworth-Heinemann. This book was released on 2013-10-01 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heat Pipes, Sixth Edition, takes a highly practical approach to the design and selection of heat pipes, making it an essential guide for practicing engineers and an ideal text for postgraduate students.This new edition has been revised to include new information on the underlying theory of heat pipes and heat transfer, and features fully updated applications, new data sections, and updated chapters on design and electronics cooling. The book is a useful reference for those with experience and an accessible introduction for those approaching the topic for the first time. Contains all information required to design and manufacture a heat pipe Suitable for use as a professional reference and graduate text Revised with greater coverage of key electronic cooling applications

Download or read book Thermocapillary Flow with Evaporation and Condensation and Its Effect on Liquid Retention in Low G Fluid Acquisition Devices written by G. R. Schmidt and published by . This book was released on 1994 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heat and Mass Transfer written by Alekseĭ Vasilʹevich Lykov and published by . This book was released on 1980 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Handbook of Fluid Dynamics written by Richard W. Johnson and published by Springer Science & Business Media. This book was released on 1998-08-18 with total page 1962 pages. Available in PDF, EPUB and Kindle. Book excerpt: Providing professionals in the field with a comprehensive guide and resource, this book balances three traditional areas of fluid mechanics - theoretical, computational, and experimental - and expounds on basic science and engineering techniques. Each chapter discusses the primary issues related to the topic in question, outlines expert approaches, and supplies references for further information.

Download or read book Materials Behavior written by Mihai Ciocoiu and published by CRC Press. This book was released on 2018-06-26 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of advanced materials has become extremely important in the last decade, being widely used in academic and industrial research. This book examines the potential of advanced materials as well as nanotechnology to improve fiber science from fibril to fabric mode, to create better materials and products for a variety of aspects. The book presents research advances in materials behavior using fractal analysis, mathematical modeling and simulation, and other methods. Examined are electrical, mechanical, optical, and magnetic properties; size; morphology; and chemical behavior of such materials as aerogels, polymer films, nanocomposite materials, natural composites, catalysis, and more with a view to their application in the medical, engineering, and textile fields. With chapters written by eminent scientists, the book offers valuable information for academics, researchers, and engineering professionals. Contributions range from new methods to novel applications of existing methods to help readers gain understanding of the material and/or structural behavior of new and advanced systems.

Download or read book Physics Briefs written by and published by . This book was released on 1994 with total page 916 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Large Space Structures Systems in the Space Station Era written by and published by . This book was released on 1991 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pore Structure and Properties of Materials written by S. Modrý and published by . This book was released on 1974 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: