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Author : Brenda Haendler
Publisher :
ISBN 13 :
Total Pages : 114 pages
Book Rating : 4.:/5 (34 download)
Download or read book Liquid to Vapor Phase Change in Constant Cross-section Silicon Microchannels written by Brenda Haendler and published by . This book was released on 2003 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : L. P. Yarin
Publisher : Springer Science & Business Media
ISBN 13 : 3540787550
Total Pages : 487 pages
Book Rating : 4.5/5 (47 download)
Download or read book Fluid Flow, Heat Transfer and Boiling in Micro-Channels written by L. P. Yarin and published by Springer Science & Business Media. This book was released on 2008-09-19 with total page 487 pages. Available in PDF, EPUB and Kindle. Book excerpt: The subject of the book is uid dynamics and heat transfer in micro-channels. This problem is important for understanding the complex phenomena associated with single- and two-phase ows in heated micro-channels. The challenge posed by high heat uxes in electronic chips makes thermal management a key factor in the development of these systems. Cooling of mic- electronic components by new cooling technologies, as well as improvement of the existing ones, is becoming a necessity as the power dissipation levels of integrated circuits increases and their sizes decrease. Miniature heat sinks with liquid ows in silicon wafers could signi cantly improve the performance and reliability of se- conductor devices. The improvements are made by increasing the effective thermal conductivity, by reducing the temperature gradient across the wafer, by reducing the maximum wafer temperature, and also by reducing the number and intensity of localized hot spots. A possible way to enhance heat transfer in systems with high power density is to change the phase in the micro-channels embedded in the device. This has motivated a number of theoretical and experimental investigations covering various aspects of heat transfer in micro-channel heat sinks with phase change. The ow and heat transfer in heated micro-channels are accompanied by a n- ber of thermohydrodynamic processes, such as liquid heating and vaporization, bo- ing, formation of two-phase mixtures with a very complicated inner structure, etc., which affect signi cantly the hydrodynamic and thermal characteristics of the co- ing systems.
Author : Satish Kandlikar
Publisher : Elsevier
ISBN 13 : 9780080445274
Total Pages : 492 pages
Book Rating : 4.4/5 (452 download)
Download or read book Heat Transfer and Fluid Flow in Minichannels and Microchannels written by Satish Kandlikar and published by Elsevier. This book was released on 2006 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: &Quot;This book explores flow through passages with hydraulic diameters from about 1 [mu]m to 3 mm, covering the range of minichannels and microchannels. Design equations along with solved examples and practice problems are also included to serve the needs of practicing engineers and students in a graduate course."--BOOK JACKET.
Author : Lian Zhang
Publisher : Springer Science & Business Media
ISBN 13 : 3662098997
Total Pages : 148 pages
Book Rating : 4.6/5 (62 download)
Download or read book Silicon Microchannel Heat Sinks written by Lian Zhang and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two-phase microchannel cooling is one of the most promising thermal-management technologies for future high-power IC chips. Understanding the boiling process and the two-phase-flow behavior in microchannels is the key to successful implementation of a microchannel heat sink. This book focuses on the phase-change phenomena and the heat transfer in sub-150 nm diameter silicon microchannels, with emphasis on thermal measurement and modeling, and the impact of small dimensions on two-phase flow regimes.
Author : Van P. Carey
Publisher : CRC Press
ISBN 13 : 1351434861
Total Pages : 594 pages
Book Rating : 4.3/5 (514 download)
Download or read book Liquid Vapor Phase Change Phenomena written by Van P. Carey and published by CRC Press. This book was released on 2018-05-02 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt: Liquid-Vapor Phase-Change Phenomena presents the basic thermophysics and transport principles that underlie the mechanisms of condensation and vaporization processes. The text has been thoroughly updated to reflect recent innovations in research and to strengthen the fundamental focus of the first edition. Starting with an integrated presentation of the nonequilibrium thermodynamics and interfacial phenomena associated with vaporization and condensation, coverage follows of the heat transfer and fluid flow mechanisms in such processes. The second edition includes significant new material on the nanoscale and microscale thermophysics of boiling and condensation phenomena and the use of advanced computational tools to create new models of phase-change events. The importance of basic phenomena to a wide variety of applications is emphasized and illustrated throughout using examples and problems. Suitable for senior undergraduate and first-year graduate students in mechanical or chemical engineering, the book can also be a helpful reference for practicing engineers or scientists studying the fundamental physics of nucleation, boiling and condensation.
Author : Fabio Toshio Kanizawa
Publisher : Springer Nature
ISBN 13 : 303068704X
Total Pages : 290 pages
Book Rating : 4.0/5 (36 download)
Download or read book Flow boiling and condensation in microscale channels written by Fabio Toshio Kanizawa and published by Springer Nature. This book was released on 2021-04-30 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers aspects of multiphase flow and heat transfer during phase change processes, focusing on boiling and condensation in microscale channels. The authors present up-to-date predictive methods for flow pattern, void fraction, pressure drop, heat transfer coefficient and critical heat flux, pointing out the range of operational conditions that each method is valid. The first four chapters are dedicated on the motivation to study multiphase flow and heat transfer during phase change process, and the three last chapters are focused on the analysis of heat transfer process during boiling and condensation. During the description of the models and predictive methods, the trends are discussed and compared with experimental findings.
Author : Yitshak Zohar
Publisher : Springer Science & Business Media
ISBN 13 : 147573607X
Total Pages : 210 pages
Book Rating : 4.4/5 (757 download)
Download or read book Heat Convection in Micro Ducts written by Yitshak Zohar and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the field of Microsystems expands into more disciplines and new applications such as RF-MEMS, Optical MEMS and Bio-MEMS, thermal management is becoming a critical issue in the operation of many microdevices, including microelectronic chips. Heat Convection in Micro Ducts focuses on the fundamental physics of convective heat transfer in microscale and specific applications such as: microchannel heat sinks, micro heat pipes, microcoolers and micro capillary pumped loops. This book will be of interest to the professional engineer and graduate student interested in learning about heat removal and temperature control in advanced integrated circuits and microelectromechanical systems.
Author : VDI Gesellschaft
Publisher : Springer Science & Business Media
ISBN 13 : 3540778764
Total Pages : 1608 pages
Book Rating : 4.5/5 (47 download)
Download or read book VDI Heat Atlas written by VDI Gesellschaft and published by Springer Science & Business Media. This book was released on 2010-07-21 with total page 1608 pages. Available in PDF, EPUB and Kindle. Book excerpt: For more than 50 years, the Springer VDI Heat Atlas has been an indispensable working means for engineers dealing with questions of heat transfer. Featuring 50% more content, this new edition covers most fields of heat transfer in industrial and engineering applications. It presents the interrelationships between basic scientific methods, experimental techniques, model-based analysis and their transfer to technical applications.
Author : Van P. Carey
Publisher : Taylor & Francis
ISBN 13 : 9781560320746
Total Pages : 672 pages
Book Rating : 4.3/5 (27 download)
Download or read book Liquid-Vapor Phase-Change Phenomena: An Introduction To The Thermophysics Of vaporization and condensation in heat transfer equipment written by Van P. Carey and published by Taylor & Francis. This book was released on 1992-01-01 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book focuses on basic elements of condensation and vaporization processes. The basic physical mechanisms associated with a particular phase-change phenomenon are described in detail, followed by a representative sample of the best models applicable to the circumstances of interest. Throughout the text, the importance of the basic phenomena to a wide variety of applications is discussed.
Author : Alexander Louis London
Publisher : CRC Press
ISBN 13 : 9781560320128
Total Pages : 798 pages
Book Rating : 4.3/5 (21 download)
Download or read book Compact Heat Exchangers written by Alexander Louis London and published by CRC Press. This book was released on 1990 with total page 798 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heat exchangers are a crucial part of aerospace, marine, cryogenic and refrigeration technology. These essays cover such topics as complicated flow arrangements, complex extended surfaces, two-phase flow and irreversibility in heat exchangers, and single-phase heat transfer.
Author : Matthew Kurt Senesky
Publisher :
ISBN 13 :
Total Pages : 390 pages
Book Rating : 4.:/5 (35 download)
Download or read book Electromagnetic Generators for Portable Power Applications written by Matthew Kurt Senesky and published by . This book was released on 2005 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 604 pages
Book Rating : 4.3/5 (243 download)
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 2004 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Omar Rafae Mahmood Al Omar
Publisher : Cuvillier Verlag
ISBN 13 : 3736983700
Total Pages : 218 pages
Book Rating : 4.7/5 (369 download)
Download or read book Modeling and simulation of complete liquid-vapor phase change process inside porous media written by Omar Rafae Mahmood Al Omar and published by Cuvillier Verlag. This book was released on 2016-10-17 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work deals with modeling and numerical simulation of fluid flow and heat transfer associated with phase change process inside both isotropic and anisotropic porous media, based on the Two-Phase Mixture Model (TPMM) along with the assumption of Local Thermal Equilibrium (LTE) and Non-Equilibrium (LTNE) conditions. In particular, it demonstrates the necessity and usefulness of a newly proposed smoothing algorithm for handling the sharp discontinuities in the effective diffusion coefficient in order to avoid the occurrence of non-physical “jump” in the predicted temperature distribution during the numerical simulation of the complete phase change process inside porous media. For the purpose of demonstration, one- and two-dimensional phase change problems operated in the Darcy flow regime have been considered.The Finite Volume Method (FVM) has been used on both staggered and non-staggered grid layouts in order to solve the governing conservation equations. In this work, after critically analyzing the drawbacks of the existing enthalpy formulation based on TPMM, a modified formulation has been also developed that can easily accommodate substantial density variations in the single phase regions. The results obtained from the modified enthalpy formulation have been compared with that predicted by the existing modified volumetric enthalpy formulation and excellent agreements have been observed for all tested cases. A thorough parametric study, using both LTE and LTNE models, indicates that the adoption of the proposed smoothing algorithm successfully eliminates “jump” in the predicted temperature distribution and does not alter the overall energy and momentum balance. All tested cases, covering applicable ranges of parametric variations, could be physically interpreted. The methodology is, therefore, recommended for future simulations of complete phase change process inside porous media. The results also show that the modified enthalpy formulation requires significantly less computation time thanmodified volumetric enthalpy formulation.
Author : Ayoub Abdollahi
Publisher :
ISBN 13 :
Total Pages : 154 pages
Book Rating : 4.:/5 (125 download)
Download or read book Fluid Flow and Heat Transfer of Liquid-liquid Taylor Flow in Microchannels written by Ayoub Abdollahi and published by . This book was released on 2019 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microfluidic devices are increasingly finding use in engineering applications due to their abilities in thermal management, and their enabling of better flow control. Applications include electronic cooling, microscale heat exchangers, and microreactors. While a number of numerical and experimental studies were found on single phase flow in microchannels, only a few studies have focused on the application of Taylor droplet flow within microchannels. Taylor droplet flow is characterised by periodically organised droplets in a carrier fluid, and has been shown to offer greatly enhanced rates of heat transfer over single phase flow. The practical realisation of the Taylor droplet system however requires generation of knowledge on its behaviour in square and rectangular microchannels. This thesis therefore focuses on understanding the fluid flow and heat transfer behaviour of Taylor droplet flow with no phase change in square microchannels using computational fluid dynamics (CFD) modelling, and experimental techniques. In this study, experiments were carried out in a stainless steel microchannel with a square cross section, having a hydraulic diameter of 2mm. To enable these studies, an experimental test rig was developed with three main sections: a T-junction section that allows Taylor fluid flow to be generated, a test section for heat transfer and pressure drop measurements, and a transparent visualization section. This test rig allowed heat transfer experiments to be performed while simultaneously visualising the Taylor droplet flow. The experiments were performed for single phase fluid flow and liquid-liquid Taylor droplet flow. In order to extend the understanding of the hydrodynamic and thermal behavior of single phase and Taylor flows in microchannels, a series of numerical simulations are performed that matched the experimental conditions. Three-dimensional numerical simulations were carried out using a volume of fluid (VOF) method with the commercial computational fluid dynamics (CFD) software package, ANSYS Fluent, Release 17.0. The effect of some critical dimensionless groups on the accuracy of the estimates of the heat transfer rate was studied. Discrepancies were found between experimental measurements of Nusselt number and theoretical predictions, particularly at low Reynolds numbers (Re
Author :
Publisher :
ISBN 13 :
Total Pages : 1238 pages
Book Rating : 4.F/5 ( download)
Download or read book Journal of Thermophysics and Heat Transfer written by and published by . This book was released on 2004 with total page 1238 pages. Available in PDF, EPUB and Kindle. Book excerpt: This journal is devoted to the advancement of the science and technology of thermophysics and heat transfer through the dissemination of original research papers disclosing new technical knowledge and exploratory developments and applications based on new knowledge. It publishes papers that deal with the properties and mechanisms involved in thermal energy transfer and storage in gases, liquids, and solids or combinations thereof. These studies include conductive, convective, and radiative modes alone or in combination and the effects of the environment.
Author : Fred D. Barlow, III
Publisher : CRC Press
ISBN 13 : 1351837176
Total Pages : 373 pages
Book Rating : 4.3/5 (518 download)
Download or read book Ceramic Interconnect Technology Handbook written by Fred D. Barlow, III and published by CRC Press. This book was released on 2018-10-03 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ceramics were among the first materials used as substrates for mass-produced electronics, and they remain an important class of packaging and interconnect material today. Most available information about ceramic electronics is either outdated or focused on their materials science characteristics. The Ceramic Interconnect Technology Handbook goes beyond the traditional approach by first surveying the unique properties of ceramics and then discussing design, processing, fabrication, and integration, as well as packaging and interconnect technologies. Collecting contributions from an outstanding panel of experts, this book offers an up-to-date overview of modern ceramic electronics, from design and material selection to manufacturing and implementation. Beginning with an overview of the development, properties, advantages, and applications of ceramics, coverage spans electrical design, testing, simulation, thermomechanical design, screen printing, multilayer ceramics, photo-defined and photo-imaged films, copper interconnects for ceramic substrates, and integrated passive devices in ceramic substrates. It also offers a detailed review of the surface, thermal, mechanical, and electrical properties of various ceramics as well as the processing of high- and low-temperature cofired ceramic (HTCC and LTCC) substrates. Opening new vistas and avenues of advancement, the Ceramic Interconnect Technology Handbook is the only source for comprehensive discussion and analysis of nearly every facet of ceramic interconnect technology and applications.
Author : Frank M. Gerner
Publisher :
ISBN 13 :
Total Pages : 120 pages
Book Rating : 4.3/5 (91 download)
Download or read book Heat Transfer on the Microscale, 1993 written by Frank M. Gerner and published by . This book was released on 1993 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
