Properties Of A Sandwich Thermal Insulation Composite With Silica Aerogel
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Properties Of A Sandwich Thermal Insulation Composite With Silica Aerogel
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Author :
language : en
Publisher:
Release Date : 2016
Properties Of A Sandwich Thermal Insulation Composite With Silica Aerogel written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
Truss Core Sandwich Panels With Compacted Aerogel Insulation
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Author : Kevin Chen (S.M.)
language : en
Publisher:
Release Date : 2013
Truss Core Sandwich Panels With Compacted Aerogel Insulation written by Kevin Chen (S.M.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
Silica aerogels are well known for their low thermal conductivity, approximately 15 mW/m-K. Their low relative density (typically less than 5%) reduces conduction through the solid and their small pore size, typically less than one hundred nanometers, on the order of the mean free path of air, reduces conduction through air as well as convection and radiation. As they are exceptionally fragile and brittle (flexural strength is typically 0.03-0.08 MPa), they are often used in a granular form in thermal insulation, with some increase in their thermal conductivity, to about 24 mW/in-K, from the air between the granules. Here, we describe a technique for compacting granular silica aerogel that reduces the thermal conductivity to 13 mW/m-K, roughly half that of the uncompacted aerogel. We also report on the development of a truss-core sandwich panel filled with compacted aerogel granules, designed to provide both mechanical support and thermal insulation to facilitate the practical commercialization of aerogel insulation, particularly in energy efficient building applications. Mechanical and thermal properties of the sandwich panel prototype were measured and compared with theoretical models available in literature. The models give a good description of the properties of aerogel-filled truss-core sandwich panels.
Silica Aerogel Composites
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Author : Mahesh Sachithanadam
language : en
Publisher: Springer
Release Date : 2016-01-13
Silica Aerogel Composites written by Mahesh Sachithanadam and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-01-13 with Technology & Engineering categories.
This book explores the improvement in thermal insulation properties of protein-based silica aerogel composites fabricated by a novel, inexpensive and feasible method. The resulting material exhibits polymeric foam behavior including high compressibility, super-hydrophobic qualities and excellent strain recovery in addition to low thermal conductivity. The fabrication methodologies are explained in great detail and represented in flowcharts for easy reference and understanding. This monograph gives readers a new perspective on composite fabrication using methods other than the traditional ones and explores the endless ways of altering the composition to modify the properties of the silica aerogel composites. Applications for this novel composite are diverse and range from those in the pharmaceutical and aerospace industries to the oil and gas industries.
Advanced Thermal Insulation For Energy Efficient Buildings
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Author : Thomas Goutierre
language : en
Publisher:
Release Date : 2011
Advanced Thermal Insulation For Energy Efficient Buildings written by Thomas Goutierre and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.
Aerogels are well known as exceptional thermal insulators. Thermal conductivities of 9 to 10 mW/m.K have been achieved at atmospheric pressure, and a moderate vacuum (between 1/3 and 1/10 of an atmosphere) can lower this number even further, to around 5 mW/m.K. However aerogels for insulation purposes are not widespread on the market. One of the major shortcomings of aerogels that prevent them from being more widely used is their extreme mechanical weakness and brittleness. In this thesis, we characterize and explain these low mechanical properties. We then propose a composite structure for a rigid aerogel panel, a sandwich panel with a truss core filled with monolithic aerogel. Mechanical and thermal properties are derived and partially tested for the truss cores. Several designs are studied and mechanical properties are derived in order to compare these designs. Some criteria for an efficient designs are given. Finally, we describe a first attempt to manufacture one of these composite structures on a small scale.
Proceeding Of International Conference On Mining Material And Metallurgical Engineering 2016
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Author : Zhan Chen
language : en
Publisher: Trans Tech Publications Ltd
Release Date : 2016-09-12
Proceeding Of International Conference On Mining Material And Metallurgical Engineering 2016 written by Zhan Chen and has been published by Trans Tech Publications Ltd this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-09-12 with Technology & Engineering categories.
Selected, peer reviewed papers from the International Conference on Mining, Material and Metallurgical Engineering 2016, April 15-17, 2016, Seoul, South Korea
Thermal Properties Of Advanced Aerogel Insulation
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Author : Ellann Cohen
language : en
Publisher:
Release Date : 2011
Thermal Properties Of Advanced Aerogel Insulation written by Ellann Cohen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.
Buildings consume too much energy. For example, 16.6% of all the energy used in the United States goes towards just the heating and cooling of buildings. Many governments, organizations, and companies are setting very ambitious goals to reduce their energy use over the next few years. Because the time periods for these goals are much less than the average lifetime of a building, existing buildings will need to be retrofitted. There are two different types of retrofitting: shallow and deep. Shallow retrofits involve the quickest and least expensive improvements often including reducing infiltration around windows, under doors, etc and blowing more insulation into the attic. Deep retrofits are those that involve costly renovation and typically include adding insulation to the walls and replacing windows. A new, easily installable, inexpensive, and thin insulation would move insulating the walls from the deep retrofit category to the shallow retrofit category and thus would revolutionize the process of retrofitting homes to make them more energy efficient. This thesis provides an overview of a concept for a new, easily installable, inexpensive, thin aerogel-based insulation and goes into detail on how the thermal properties of the aerogel were measured and validated. The transient hot-wire method for measuring the thermal conductivity of very low thermal conductivity silica aerogel (1 0mW/m K at 1 atm) along with a correction for end effects was validated with the NIST (National Institute of Standards and Technology) Standard Reference Material 1459, fumed silica board to within 1 mW/mK. Despite the translucence of the aerogel at certain wavelengths, radiation is not an issue through the aerogel during the hot-wire test but may be an issue in actual use as an insulation. The monolithic aerogel thermal conductivity drops significantly with slightly reduced pressure (3.2 mW/m K at 0.1atm). For the final composite insulation, the new silica aerogel formula is a great choice and it is recommended to reduce the pressure around the aerogel to 1 / 1 0 th. In the future, a prototype of an insulation panel combining a 3-D truss structure, monolithic or granular silica aerogel, and reduced pressure will be constructed and tested.
Aerogels For Energy Saving And Storage
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Author : Meldin Mathew
language : en
Publisher: John Wiley & Sons
Release Date : 2024-07-23
Aerogels For Energy Saving And Storage written by Meldin Mathew and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-07-23 with Technology & Engineering categories.
Explore the energy storage applications of a wide variety of aerogels made from different materials In Aerogels for Energy Saving and Storage, an expert team of researchers delivers a one-stop resource covering the state-of-the-art in aerogels for energy applications. The book covers their morphology, properties, and processability and serves as a valuable resource for researchers and professionals working in materials science and environmentally friendly energy and power technology. The authors offer a comprehensive review of highly efficient energy applications of aerogels that bridges the gap between engineering, science, and chemistry and advances the field of materials development. They provide a Life Cycle Assessment of aerogels in energy systems, as well as discussions of their impact on the environment. Aerogel synthesis, characterization, fabrication, morphology, properties, energy-related applications, and simulations are all explored, and likely future research directions are provided. Readers will also find: A thorough introduction to aerogels in energy, including state-of-the-art advancements and challenges newly encountered Comprehensive explorations of chitin-based and cellulose-derived aerogels, as well as lignin-, clay-, and carbon nanotube-based aerogels Practical discussions of organic, natural, and inorganic aerogels, with further analyses of the lifecycle of aerogels In-depth examinations of the theory, modeling, and simulation of aerogels Perfect for chemical and environmental engineers, Aerogels for Energy Saving and Storage will also earn a place in the libraries of chemistry and materials science researchers in academia and industry.
Thermophysical Properties Of Thermal Insulating Materials
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Author : Midwest Research Institute (Kansas City, Mo.)
language : en
Publisher:
Release Date : 1962
Thermophysical Properties Of Thermal Insulating Materials written by Midwest Research Institute (Kansas City, Mo.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1962 with Insulating materials categories.
Advances In Nanocomposites
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Author : Shaker A. Meguid
language : en
Publisher: Springer
Release Date : 2016-06-17
Advances In Nanocomposites written by Shaker A. Meguid and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-06-17 with Technology & Engineering categories.
This book introduces nanocomposite materials possessing a broad range of multifunctionality. It elucidates novel and highly original developments from recent research and development of these critical, new engineered materials. The collection examines multiscale modeling, molecular dynamics, atomistic based continuum, synthesis and characterization, condition health monitoring, spectroscopic characterization techniques, self-lubricating materials, and conducting polymers. The volume features the latest efforts of some of the most eminent researchers in the world. Providing a range of perspectives from the laboratory and the field, Advances in Nanocomposites: Modeling and Characterization is ideal for engineers, physicists, and materials scientists in academia and industry.
Composites Innovation
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Author : Probir Guha
language : en
Publisher: CRC Press
Release Date : 2021-11-14
Composites Innovation written by Probir Guha and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-11-14 with Technology & Engineering categories.
Composites Innovation: Perspectives on Advancing the Industry provides a panoramic view of innovations in the composites industry, including discussions from business leaders and the university research community on advanced applications in North America, advances in recycling of composites, the use of artificial intelligence, nanocomposites, and emerging smart composites technology. The book is arranged in five key segments including: how composites fit into our world; the basics of the technology; customer insights; pushing the boundaries with concepts from outside the world of composites and emerging composites technologies; and paths forward to find competitive and effective solutions in a timely manner. Key Features Considers sustainability and innovation as driving forces for the growth of composites Explores materials and process development, including chopped and continuous fiber systems Provides a landscape of the status of intellectual property and patents Discusses use of artificial intelligence to improve business systems with case studies and a new disciplined approach to ideation and innovation Features chapters by an accomplished group of global business and technology leaders With contributing authors spanning 15 time zones to pioneer new solutions with composite materials, this book provides an excellent resource for composites business leaders, researchers and educators, and industry professionals, as well as new entrants to this vibrant community.