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High Efficiency Solid State Cooling Technologies
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Book Synopsis High-Efficiency Solid State Cooling Technologies by :
Download or read book High-Efficiency Solid State Cooling Technologies written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: BEETIT Project: Sheetak is developing a thermoelectric-based solid state cooling system to replace typical air conditioners that use vapor compression to cool air. With noisy mechanical components, vapor compression systems use a liquid refrigerant to circulate within the air conditioner, absorb heat, and pump the heat out into the external environment. With no noisy moving parts or polluting refrigerants, thermoelectric systems rely on an electrical current being passed through the junction of the two different conducting materials to change temperature. Using advanced semiconductor technology, Sheetak is improving solid state cooling systems by using proprietary thermoelectric materials along with other innovations to achieve significant energy efficiency. Sheetak's new design displaces compressor-based technology; improves reliability; and decreases energy usage. Sheetak's use of semiconductor manufacturing methods leads to less material use--facilitating cheaper production.
Book Synopsis Improved PVDF Terpolymers for Solid State Cooling and Beyond by : Ziyang Zhang
Download or read book Improved PVDF Terpolymers for Solid State Cooling and Beyond written by Ziyang Zhang and published by . This book was released on 2019 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cooling is a basic need for human beings. Vapor compression cooling is the technology behind almost all of the applications. However, limited by its mechanism, the vapor compression refrigeration is not suitable for modern technologies such as mobile devices and personal cooling. Besides, it relies on refrigerants like Freon and hydrofluorinecarbons, which pose serious environmental problems. Therefore, it is urgent and over-due to develop new cooling technologies that are efficient and environmentally friendly. As a solid-state cooling technology, electrocaloric cooling offers several advantages over traditional cooling systems, but few devices offer high specific cooling power and a high coefficient of performance (COP). To develop electrocaloric cooling technology towards commercialization, we attacked the project through both material and device directions. We developed a solution process fabrication method for large area EC film fabrication. Various material characterizations were conducted to study and optimize the performance of the EC film. The as-fabricated EC film has an active area of 10 cm2 and a cycling test was conducted to prove its reliability under repeating high voltage. Another material's effort is to chemically modify the EC polymer for features like better mechanical strength, reliability, and high dielectric constant. Poly(vinylidene fluoride-trifluoroethylene-chlororfluoroethylene) was used as the starting material. It is a dehydrochlorination reaction catalyzed by triethylamine. The organic base attacks the hydrogen close to the Cl atoms, and the reaction introduces unsaturated double bond in the polymer chain. The unsaturated sites can be used as active sites for functional group introduction to modify the polymer further. In particular, we used this double-bonding containing polymer as the precursor to prepare crosslinked thin films and demonstrated improved capacitive energy storage. We presented a cooling device with high intrinsic thermodynamic efficiency using a flexible electrocaloric (EC) polymer film and an electrostatic actuation mechanism to transfer heat between a heat source and a heat sink. Reversible electrostatic forces reduce parasitic power consumption and allow efficient heat transfer through excellent thermal contact with the heat source or sink. The EC device produced a specific cooling power of 2.8 W/g and a relative COP of 13. Our cooling device is more efficient and compact than existing solid-state cooling technologies, showing a path towards using the technology for a variety of practical applications.
Book Synopsis Laser Cooling and Trapping by : Harold J. Metcalf
Download or read book Laser Cooling and Trapping written by Harold J. Metcalf and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intended for advanced undergraduates and beginning graduates with some basic knowledge of optics and quantum mechanics, this text begins with a review of the relevant results of quantum mechanics, before turning to the electromagnetic interactions involved in slowing and trapping atoms and ions, in both magnetic and optical traps. The concluding chapters discuss a broad range of applications, from atomic clocks and studies of collision processes, to diffraction and interference of atomic beams at optical lattices and Bose-Einstein condensation.
Book Synopsis The Electrocaloric Effect by : Andrei L. Kholkin
Download or read book The Electrocaloric Effect written by Andrei L. Kholkin and published by Elsevier. This book was released on 2023-02-16 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Electrocaloric Effect: Materials and Applications reviews the fundamentals of the electrocaloric effect, the most relevant electrocaloric materials, and electrocaloric measurements and device applications. The book introduces the electrocaloric effect, along with modeling and simulations of this effect. Then, it addresses the latest advances in synthesis, characterization and optimization of the most relevant electrocaloric materials, including ferroelectric materials, liquid materials, lead-free materials, polymers and composites. Finally, there is a review of the latest techniques in measurement and applications in refrigeration and cooling and a discussion of the advantages, challenges and perspectives of the future of electrocaloric refrigeration. Provides a comprehensive introduction to the electrocaloric effect including experimental techniques to measure, model, and simulate the effect Reviews the most relevant electrocaloric materials such as composites, polymers, metal oxides, ferroelectric materials, and more Touches on the design and application of electrocaloric materials for devices with potential cooling and refrigeration applications
Book Synopsis Nbs/Nrc Steam Tables by : Lester Haar
Download or read book Nbs/Nrc Steam Tables written by Lester Haar and published by CRC Press. This book was released on 1984-01-01 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Magnetic Cooling by : Oliver Gutfleisch
Download or read book Magnetic Cooling written by Oliver Gutfleisch and published by Wiley. This book was released on 2020-01-28 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new publication is the first up-to-date resource on this exciting research area. As one of the few green, energy efficient technologies, magnetic cooling is experiencing a surge in interest and this book brings together the latest research from physics, materials science, engineering and chemistry. In the process of being commercialized, large organisations are working on bringing a suitable product to market utilising this technology.
Book Synopsis Advanced Cooling Technologies and Applications by : S. M. Sohel Murshed
Download or read book Advanced Cooling Technologies and Applications written by S. M. Sohel Murshed and published by BoD – Books on Demand. This book was released on 2019-01-30 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since conventional cooling techniques are increasing falling short of meeting the ever-growing cooling demands of high heat generating devices, thermal systems, and processes, advanced and innovative cooling technologies are of immense importance to deal with such high thermal management. Hence, this book covers a number of key topics related to advanced cooling approaches, their performance, and applications, including: Evaporative air cooling; Spray impingement cooling; Heat pump-based cooling; Modular cooling for photovoltaic plant; Nucleate pool boiling of refrigerants; Transient flashing spray cooling and application; Compressor cooling systems for industry. The book is aimed at a wide variety of people from graduate students and researchers to manufacturers who are involved or interested in the areas of thermal management systems, cooling technologies, and their applications.
Book Synopsis Thermoacoustics by : Gregory W. Swift
Download or read book Thermoacoustics written by Gregory W. Swift and published by Springer. This book was released on 2017-10-05 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: This updated new edition provides an introduction to the field of thermoacoustics. All of the key aspects of the topic are introduced, with the goal of helping the reader to acquire both an intuitive understanding and the ability to design hardware, build it, and assess its performance. Weaving together intuition, mathematics, and experimental results, this text equips readers with the tools to bridge the fields of thermodynamics and acoustics. At the same time, it remains firmly grounded in experimental results, basing its discussions on the distillation of a body of experiments spanning several decades and countries. The book begins with detailed treatment of the fundamental physical laws that underlie thermoacoustics. It then goes on to discuss key concepts, including simple oscillations, waves, power, and efficiency. The remaining portions of the book delve into more advanced topics and address practical concerns in applications chapters on hardware and measurements. With its careful progression and end-of-chapter exercises, this book will appeal to graduate students in physics and engineering as well as researchers and practitioners in either acoustics or thermodynamics looking to explore the possibilities of thermoacoustics. This revised and expanded second edition has been updated with an eye to modern technology, including computer animations and DeltaEC examples.
Book Synopsis Compact Solid State Cooling Systems by :
Download or read book Compact Solid State Cooling Systems written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: BEETIT Project: UCLA is developing a novel solid-state cooling technology to translate a recent scientific discovery of the so-called giant electrocaloric effect into commercially viable compact cooling systems. Traditional air conditioners use noisy, vapor compression systems that include a polluting liquid refrigerant to circulate within the air conditioner, absorb heat, and pump the heat out into the environment. Electrocaloric materials achieve the same result by heating up when placed within an electric field and cooling down when removed--effectively pumping heat out from a cooler to warmer environment. This electrocaloric-based solid state cooling system is quiet and does not use liquid refrigerants. The innovation includes developing nano-structured materials and reliable interfaces for heat exchange. With these innovations and advances in micro/nano-scale manufacturing technologies pioneered by semiconductor companies, UCLA is aiming to extend the performance/reliability of the cooling module.
Book Synopsis Optical Refrigeration by : Richard I. Epstein
Download or read book Optical Refrigeration written by Richard I. Epstein and published by John Wiley & Sons. This book was released on 2010-12-13 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edited by the two top experts in the field with a panel of International contributors, this is a comprehensive up-to-date review of research and applications. Starting with the basic physical principles of laser cooling of solids, the monograph goes on to discuss the current theoretical issues being resolved and the increasing demands of growth and evaluation of high purity materials suitable for optical refrigeration, while also examining the design and applications of practical cryocoolers. An advanced text for scientists, researchers, engineers, and students (masters, PHDs and Postdoc) in laser and optical material science, and cryogenics.
Book Synopsis Cryocoolers 11 by : Ronald G. Jr. Ross
Download or read book Cryocoolers 11 written by Ronald G. Jr. Ross and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 797 pages. Available in PDF, EPUB and Kindle. Book excerpt: Composed of papers written by leading engineers and scientists in the field, this valuable collection reports the most recent advances in cryocooler development, contains extensive performance test results and comparisons, and relates the latest experience in integrating cryocoolers into advanced applications.
Book Synopsis Advanced Elastocaloric Cooling Devices Based on Shape Memory Alloy Films by : Brüderlin, Florian
Download or read book Advanced Elastocaloric Cooling Devices Based on Shape Memory Alloy Films written by Brüderlin, Florian and published by KIT Scientific Publishing. This book was released on 2022-11-15 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Elastocaloric cooling is an emerging solid-state cooling technology with the potential to provide environmentally friendly, efficient cooling. The elastocaloric effect in superelastic shape memory alloy films is used to develop advanced cooling devices for small-scale applications. Cascaded and parallelized devices are developed to increase device temperature span and cooling capacity. The concepts are proven experimentally, a maximum temperature span of 27° C is achieved in a cascaded device.
Book Synopsis High-Power Optics by : Victor V. Apollonov
Download or read book High-Power Optics written by Victor V. Apollonov and published by Springer. This book was released on 2014-11-21 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the basics, realization and materials for high power laser systems and high power radiation interaction with matter. The physical and technical fundamentals of high intensity laser optics and adaptive optics and the related physical processes in high intensity laser systems are explained. A main question discussed is: What is power optics? In what way is it different from ordinary optics widely used in cameras, motion-picture projectors, i.e., for everyday use? An undesirable consequence of the thermal deformation of optical elements and surfaces was discovered during studies of the interaction with powerful incident laser radiation. The requirements to the fabrication, performance and quality of optical elements employed within systems for most practical applications are also covered. The high-power laser performance is generally governed by the following: (i) the absorption of incident optical radiation (governed primarily by various absorption mechanisms), (ii) followed by a temperature increase and response governed primarily by thermal properties and (iii) the thermo-optical and thermo-mechanical response of distortion, stress, fracture, etc. All this needs to be understood to design efficient, compact, reliable and useful high power systems for many applications under a variety of operating conditions, pulsed, continuous wave and burst mode of varying duty cycles. The book gives an overview of an important spectrum of related topics like laser resonator configurations, intermetallic optical coatings, heat carriers for high power optics, cellular materials, high-repetition-rate lasers and mono-module disk lasers for high power optics.
Book Synopsis Magnetocaloric Energy Conversion by : Andrej Kitanovski
Download or read book Magnetocaloric Energy Conversion written by Andrej Kitanovski and published by Springer. This book was released on 2014-12-03 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the latest research on a new alternative form of technology, the magnetocaloric energy conversion. This area of research concerns magnetic refrigeration and cooling, magnetic heat pumping and magnetic power generation. The book’s systematic approach offers the theoretical basis of magnetocaloric energy conversion and its various sub domains and this is supported with the practical examples. Besides these fundamentals, the book also introduces potential solutions to engineering problems in magnetocalorics and to alternative technologies of solid state energy conversion. The aim of the book is therefore to provide engineers with the most up-to-date information and also to facilitate the understanding, design and construction of future magnetocaloric energy conversion devices. The magnetocaloric energy conversion represents an alternative to compressor based refrigerators and heat pumps. It is a serious alternative to power generation with low enthalpy heat sources. This green technology offers an opportunity to use environmentally friendly solid refrigerants and the potentially high energy efficiency follows the trends of future energy conversion devices. This book is intended for postgraduate students and researchers of refrigeration, heat pumping, power generation alternatives, heat regenerators and advanced heat transfer mechanisms.
Book Synopsis Embedded Cooling Of Electronic Devices: Conduction, Evaporation, And Single- And Two-phase Convection by : Madhusudan Iyengar
Download or read book Embedded Cooling Of Electronic Devices: Conduction, Evaporation, And Single- And Two-phase Convection written by Madhusudan Iyengar and published by World Scientific. This book was released on 2024-01-10 with total page 479 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a comprehensive guide on emerging cooling technologies for processors in microelectronics. It covers various topics such as chip-embedded two-phase cooling, monolithic microfluidic cooling, numerical modeling, and advances in materials engineering for conduction-limited direct contact cooling, with a goal to remedy high heat flux issues.The book also discusses the co-design of thermal and electromagnetic properties for the development of light and ultra-high efficiency electric motors. It provides an in-depth analysis of the scaling limits, challenges, and opportunities in embedded cooling, including high power RF amplifiers and self-emissive and liquid crystal displays. Its analysis of emerging cooling technologies provides a roadmap for the future of cooling technology in microelectronics.This book is a good starting point for the electrical and thermal engineers, as well as MS and PhD students, interested in understanding and collaboratively tackling the complex and multidisciplinary field of microelectronics device (embedded) cooling. A basic knowledge of heat conduction and convection is required.
Author :United States. Congress. House. Committee on Science, Space, and Technology Publisher : ISBN 13 : Total Pages :44 pages Book Rating :4.0/5 ( download)
Book Synopsis Views and Estimates of the Committee on Science, Space, and Technology on the Fiscal Year 1993 Budget for Civilian R&D by : United States. Congress. House. Committee on Science, Space, and Technology
Download or read book Views and Estimates of the Committee on Science, Space, and Technology on the Fiscal Year 1993 Budget for Civilian R&D written by United States. Congress. House. Committee on Science, Space, and Technology and published by . This book was released on 1992 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Militarily Critical Technologies List by :
Download or read book The Militarily Critical Technologies List written by and published by . This book was released on 1986 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
