Download or read book High Performance Single Phase Heat Exchangers written by A. Zhukauskas and published by CRC Press. This book was released on 1989-05-01 with total page 515 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intended as both instructional text and reference investigating current problems in the design of efficient, single-phase heat exchangers, in hydrodynamics, and in convected heat transfer in flows of both gases and various liquids. Includes analytic and experimental data from laminar, turbulent, and
Download or read book High Perf Singl Phas Ht Exch Pb written by A. Zukauskas and published by CRC Press. This book was released on 1989-05-01 with total page 515 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intended as both instructional text and reference investigating current problems in the design of efficient, single-phase heat exchangers, in hydrodynamics, and in convected heat transfer in flows of both gases and various liquids. Includes analytic and experimental data from laminar, turbulent, and separated flows over a wide range of Reynolds and Prandtl numbers. Emphasis is given to transfer enhancement, flow-induced vibration, and improving the efficiency and compactness of tubular heat exchangers. Translated from the Russian. Also available in paperback edition. Annotation copyrighted by Book News, Inc., Portland, OR
Download or read book Handbook of Thermal Science and Engineering written by and published by Springer. This book was released on 2018-07-31 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Handbook provides researchers, faculty, design engineers in industrial R&D, and practicing engineers in the field concise treatments of advanced and more-recently established topics in thermal science and engineering, with an important emphasis on micro- and nanosystems, not covered in earlier references on applied thermal science, heat transfer or relevant aspects of mechanical/chemical engineering. Major sections address new developments in heat transfer, transport phenomena, single- and multiphase flows with energy transfer, thermal-bioengineering, thermal radiation, combined mode heat transfer, coupled heat and mass transfer, and energy systems. Energy transport at the macro-scale and micro/nano-scales is also included. The internationally recognized team of authors adopt a consistent and systematic approach and writing style, including ample cross reference among topics, offering readers a user-friendly knowledgebase greater than the sum of its parts, perfect for frequent consultation. The Handbook of Thermal Science and Engineering is ideal for academic and professional readers in the traditional and emerging areas of mechanical engineering, chemical engineering, aerospace engineering, bioengineering, electronics fabrication, energy, and manufacturing concerned with the influence thermal phenomena.
Download or read book Next Generation Microchannel Heat Exchangers written by Michael Ohadi and published by Springer Science & Business Media. This book was released on 2012-10-16 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Next Generation Microchannel Heat Exchangers, the authors’ focus on the new generation highly efficient heat exchangers and presentation of novel data and technical expertise not available in the open literature. Next generation micro channels offer record high heat transfer coefficients with pressure drops much less than conventional micro channel heat exchangers. These inherent features promise fast penetration into many mew markets, including high heat flux cooling of electronics, waste heat recovery and energy efficiency enhancement applications, alternative energy systems, as well as applications in mass exchangers and chemical reactor systems. The combination of up to the minute research findings and technical know-how make this book very timely as the search for high performance heat and mass exchangers that can cut costs in materials consumption intensifies.
Download or read book Plate Heat Exchangers written by Bengt Sundén and published by WIT Press. This book was released on 2007 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plate-and-frame heat exchangers (PHEs) are used in many different processes at a broad range of temperatures and with a variety of substances. Research into PHEs has increased considerably in recent years and this is a compilation of knowledge on the subject. Containing invited contributions from prominent and active investigators in the area, it should enable graduate students, researchers, and research and development engineers in industry to achieve a better understanding of transport processes. Some guidelines for design and development are also included.
Download or read book Heat Transfer Enhancement of Heat Exchangers written by Sadik Kakaç and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heat transfer enhancement in single-phase and two-phase flow heat exchangers in important in such industrial applications as power generating plant, process and chemical industry, heating, ventilation, air conditioning and refrigeration systems, and the cooling of electronic equipment. Energy savings are of primary importance in the design of such systems, leading to more efficient, environmentally friendly devices. This book provides invaluable information for such purposes.
Download or read book Heat Exchangers written by Holger Martin and published by CRC Press. This book was released on 1992-04-01 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heat Exchanger Design Handbook written by Kuppan Thulukkanam and published by CRC Press. This book was released on 2013-05-20 with total page 1245 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive reference covers important aspects of heat exchangers (HEs): design and modes of operation and practical, large-scale applications in process, power, petroleum, transport, air conditioning, refrigeration, cryogenics, heat recovery, energy, and other industries. This second edition includes over 400 drawings, diagrams, tables, and equations, includes updated material throughout; coverage of the latest advances in HE design techniques; expanded and updated coverage of materials selection; and a look at the newest fabrication techniques.
Download or read book Phase Separation in Two phase Microfluidic Heat Exchangers written by Milnes P. David and published by Stanford University. This book was released on 2011 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two-phase microfluidic heat exchangers have the potential to meet the large heat dissipation demands of high power electronics and computing systems. Two-phase cooling systems face practical challenges brought on by the growth and advection of the vapor phase in the confined geometries, which lead to large pressure drops, increased thermal resistance and the formation of detrimental flow instabilities. One proposed solution to these issues is phase separation, whereby the vapor is locally separated from the two-phase flow through a porous hydrophobic membrane. This dissertation describes a series of studies conducted to develop an understanding of the factors that influence vapor separation and its impact on the hydraulic and thermal characteristics of two-phase heat exchangers. Flow phenomena are a critical component in developing this understanding of phase separation. High speed visualization of adiabatic and diabatic vaporizing flows was carried out in a single 124[Mu]m by 98[Mu]m copper microchannel with a 65[Mu]m thick, 220nm pore diameter hydrophobic PTFE membrane wall. During adiabatic air-water flow, wavy-stratified and stratified flow dominated lower liquid velocities, while plug and annular type flows dominated at the higher velocities. Analysis found that air removal could be improved by increasing the venting area, increasing the trans-membrane pressure or using thinner, high permeability membranes. Diabatic water-vapor experiments with mass flux velocities of 140 and 340 kg/s-m2 and exit qualities up to 20% found that stratified type flows dominate at lower mass fluxes while cyclical churn-annular flow became more prevalent at the higher mass-flux and quality. The observed flow regimes are hypothesized to play a significant role in determining the pressure drop and heat transfer coefficient during flow boiling. To study the impact of various geometric and membrane factors on the performance of a phase separating microchannel heat exchanger dissipating 100W of heat, a numerical model incorporating vapor separation and transport during two-phase flow boiling in a microchannel was developed. The impact of substrate thermal conductivity and thickness, membrane permeability and thickness, liquid channel density, liquid and vent channel diameter and vent-to-liquid channel diameter ratio was studied and compared for a standard non-venting heat exchanger, a vapor venting heat exchanger and a non-venting heat exchanger occupying the same increased volume as the venting heat exchanger. The numerical study found that the venting heat exchanger had improved pressure drop and device temperatures for all tested conditions when compared against a standard heat exchanger but only under very limited conditions when compared against the volumetrically equivalent non-venting heat exchanger. The study indicates that the best venting heat exchanger performance is achieved when the membrane conductance is of the same order or higher than that of the microchannel; this can be achieved through the use of thin high permeability membranes coupled with small hydraulic diameter microchannels. Finally, a study was conducted to explore the fabrication methods to build a vapor separating heat exchanger and to quantify the operating performance of multichannel silicon and copper phase separating devices. A copper parallel microchannel heat exchanger with nineteen 130[Mu]m square microchannels was built and tested at heat fluxes of up to 820 kW/m2 and water mass fluxes of between 102 and 420 kg/s-m2. Normalized pressure drop was improved by as much as 60% and average substrate temperature by a maximum of 4.4°C between the non-venting control and vapor venting device under similar operating conditions. Comparison between the experimental results and simulation predictions found higher than expected pressure drop improvements at higher mass fluxes and poorer heat transfer coefficients at the lowest mass flux. Based on the flow phenomena study these discrepancies are believed to be due to the mass flux and vapor quality dependent two-phase flow structures. The encouraging experimental and numerical results motivate further study into phase separation methods, materials and flow physics. The development of a high performance phase separating heat exchanger, with the thermal benefits of two-phase boiling flow and the hydraulic benefits of single-phase liquid flow, would strongly enable the adoption and application of two-phase heat exchangers to provide effective and efficient cooling for next generation high power computing systems.
Download or read book Single Phase Heat Exchangers written by American Society of Mechanical Engineers and published by . This book was released on 2001 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heat Exchangers written by Kuppan Thulukkanam and published by CRC Press. This book was released on 2024-02-29 with total page 703 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heat Exchangers: Classification, Selection, and Thermal Design, Third Edition discusses heat exchangers and their various applications, such as refrigeration, air conditioning, automobiles, gas turbines, process industries, refineries, and thermal power plants. With a focus on thermal design methods, including rating and sizing, the book covers thermohydraulic fundamentals and thermal effectiveness charts for various flow configurations and shell and tube heat exchangers. It provides construction details, geometrical features and correlations, and thermo-hydraulic details for tube-fin, plate fin, air-cooled, shell and tube, microchannel, and plate heat exchangers and thermal design methods like rating and sizing. The book explores additive manufacturing of heat exchangers, printed circuit heat exchangers, and heat transfer augmentation methods. The book also describes recuperators and regenerators of gas turbine cycles, waste heat recovery devices, and phase change phenomena including boiling, condensation and steam generation. The book serves as a useful reference for researchers, graduate students, and engineers in the field of heat exchanger design, including heat exchanger manufacturers.
Download or read book Innovative Heat Exchangers written by Hans-Jörg Bart and published by Springer. This book was released on 2017-12-30 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: This accessible book presents unconventional technologies in heat exchanger design that have the capacity to provide solutions to major concerns within the process and power-generating industries. Demonstrating the advantages and limits of these innovative heat exchangers, it also discusses micro- and nanostructure surfaces and micro-scale equipment, and introduces pillow-plate, helical and expanded metal baffle concepts. It offers step-by-step worked examples, which provide instructions for developing an initial configuration and are supported by clear, detailed drawings and pictures. Various types of heat exchangers are available, and they are widely used in all fields of industry for cooling or heating purposes, including in combustion engines. The market in 2012 was estimated to be U$ 42.7 billion and the global demand for heat exchangers is experiencing an annual growth of about 7.8 %. The market value is expected to reach U$ 57.9 billion in 2016, and approach U$ 78.16 billion in 2020. Providing a valuable introduction to students and researchers, this book offers clear and concise information to thermal engineers, mechanical engineers, process engineers and heat exchanger specialists.
Download or read book Two Phase Flow Heat Exchangers written by Sadik Kakaç and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1090 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two-phase flow heat exchangers are vital components of systems for power generation, chemical processing, and thermal environment control. The art and science of the design of such heat exchangers have advanced considerably in recent years. This is due to better understanding of the fundamentals of two-phase flow and heat transfer in simple geometries, greater appreciation of these processes in complex goemetries, and enhanced predictive capability through use of complex computer codes. The subject is clearly of great fundamental and practical importance. The NATO ASIan Thermal-Hydraulic Fundamentals and Design of Two-Phase Flow Heat Exchangers was held in Povoa de Varzim (near Porto), Portugal, July 6-17, 1987. participating in the organization of" the ASI were the Department of Mechanical Engineering and the Clean Energy Research Institute, University of Miami; Universidade do Porto; and the Department of Mechanical Engineering, Aeronautical Eng ineer ing, and Mechanics, Rensselaer Polytechnic Institute. The ASI was arranged primarily as a high-level teaching activity by experts representing both academic and industrial viewpoints. The program included the presentation of invited lectures, a limited number of related technical papers and discussion sessions.
Download or read book Advances in Heat Transfer Augmentation Techniques in Single Phase Flows written by Varun Goel and published by CRC Press. This book was released on 2024-01-26 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: Augmentation of heat transfer is important in energy conservation and developing sustainable energy systems. This book provides the science necessary to understand the basics of heat transfer augmentation in single-phase engineering systems. It considers theory and practice including computational and experimental procedures, evaluation techniques for performance, and new trends. Several applications of augmentation methods like surface modification, introduction of vortex flow and impinging jets, opportunities of ultrasound and magnetic fields, pulsatile flows, heat exchangers, and nanofluids are provided. Details of basic phenomena and mechanisms are highlighted. Key features: Provides the fundamental science needed to understand and further develop heat transfer augmentation for future energy systems Give examples of how ultrasound and magnetic fields, vortex flow, impinging jets, surface modification and nanofluids can augment heat transfer Considers basic issues of computational and experimental methods for analysis, design, and evaluation of efficient and sustainable heat transfer It is an ideal reference text for graduate students and academic researchers working in the fields of mechanical, aerospace, industrial, manufacturing, and chemical engineering.
Download or read book Compact Heat Exchangers written by J.E. Hesselgreaves and published by Butterworth-Heinemann. This book was released on 2016-09-26 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compact Heat Exchangers: Selection, Design, and Operation, Second Edition, is fully revised to present the most recent and fundamental ideas and industrial concepts in compact heat exchanger technology. This complete reference compiles all aspects of theory, design rules, operational issues, and the most recent developments and technological advancements in compact heat exchangers. New to this edition is the inclusion of micro, sintered, and porous passage description and data, electronic cooling, and an introduction to convective heat transfer fundamentals. New revised content provides up-to-date coverage of industrially available exchangers, recent fouling theories, and reactor types, with summaries of off-design performance and system effects and installations issues in, for example, automobiles and aircraft. Hesselgreaves covers previously neglected approaches, such as the Second Law (of Thermodynamics), pioneered by Bejan and co-workers. The justification for this is that there is increasing interest in life-cycle and sustainable approaches to industrial activity as a whole, often involving exergy (Second Law) analysis. Heat exchangers, being fundamental components of energy and process systems, are both savers and spenders of energy, according to interpretation. Contains revised content, covering industrially available exchangers, recent fouling theories, and reactor types Includes useful comparisons throughout with conventional heat exchangers to emphasize the benefits of CPHE applications Provides a thorough system view from commissioning, operation, maintenance, and design approaches to reduce fouling and fouling factors Compiles all aspects of theory, design rules, operational issues, and the most recent developments and technological advancements in compact heat exchangers
Download or read book High Heat Flux Single Phase Heat Exchanger written by Javier A. Valenzuela and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heat Exchangers written by Sadik Kakaç and published by CRC Press. This book was released on 2012-03-01 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
