Thematische Bibliographien / Insulative materials

Auswahl der wissenschaftlichen Literatur zum Thema „Insulative materials“

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Veröffentlicht am 25. Mai 2024

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Zeitschriftenartikel zum Thema "Insulative materials"

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Karambar, Smitha, und Stefan Tenbohlen. „Compatibility Study of Silicone Rubber and Mineral Oil“. Energies 14, Nr. 18 (17.09.2021): 5899. http://dx.doi.org/10.3390/en14185899.

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In this study, three types of silicone rubbers, namely, insulative silicone rubber, conductive silicone rubber and silicone rubber with conductive as well as insulative layers are investigated for their compatibility with mineral oil. Mineral oil with different silicone rubber samples is thermally aged at 130 °C for 360 h, 720 h and 1080 h and at 23 °C, 98 °C and 130 °C for 360 h. At the end of each ageing interval, mineral oil and oil-impregnated silicone rubbers are investigated for their dielectric properties. Aged mineral oil samples are investigated for their moisture content, breakdown voltage, colour number, dissolved gases and total acid number, whereas solid insulation samples are investigated for their moisture content. Additionally, pressboard samples in mineral oil and mineral oil without any solid insulation materials are also aged under the same conditions and are investigated for their dielectric properties. From the obtained results, it can be assessed that the presence of carbon particles in conductive silicone rubber negatively impacts the dielectric properties of mineral oil. Among the investigated silicone rubbers, the insulative silicone rubber exhibits good compatibility with mineral oil and a strong potential for being used in mineral oil.
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Aksenov, Boris, Oleg Stepanov und ludmila Stefurak. „The temperature - insulative material that can work as the insulation and siding and decorative material“. MATEC Web of Conferences 245 (2018): 03018. http://dx.doi.org/10.1051/matecconf/201824503018.

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The article analyzes the new temperature - insulative materials. It is motivated that the temperature - insulative material capable to work in the panel as a temperature insulative and facing-decorative material can be only composite type. The composition of the new material, the technology of its production, as well as the mathematical model of the mechanism of formation of strong crusts at its surfaces. The material that is used for the manufacture of roofing panels, panels BKU with an internal non-metallic layer. These panels allow you to break the bridges of cold in butt joints, which improves thermal performance, reliability and durability of the building as a whole. Based on the developed mathematical model, you can predict the properties of foam plastic.
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Olah, Arthur, Catalin Croitoru, Ionut Claudiu Roata und Alexandru Bogdan Andreescu. „Ignition behavior of insulative materials: a safety vision“. Materials Today: Proceedings 19 (2019): 1003–7. http://dx.doi.org/10.1016/j.matpr.2019.08.013.

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Yamaguchi, Mina, Akihiro Ishii, Itaru Oikawa, Yusuke Yamazaki, Masaaki Imura und Hitoshi Takamura. „Antireflective black coatings comprised of Ag–Fe–O thin films with high electrical resistivity“. APL Materials 10, Nr. 3 (01.03.2022): 031102. http://dx.doi.org/10.1063/5.0081463.

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Black antireflective (AR) coatings with electric insulative properties are required to improve the visibility of touch panel displays in the turned-on state and their appearance in the turned-off state. In this study, multilayer black AR stacks comprised of black insulative Ag–Fe–O, high- n TiO2, and low- n SiO xN y were constructed by optical simulation and prepared using RF magnetron sputtering and pulsed laser deposition. For the stacking model with five layers, the calculations show an excellent low reflectance of below 0.15% over the whole visible range with a transmittance of 0.002%. A simulation of the three-layered model indicated that the average reflectance can be reduced from over 43% for a monolayer to 3% with a reasonable average transmittance of 15% for display applications. RF magnetron sputtering, an industrial friendly method, was used to prepare the black insulative Ag–Fe–O in the AR stack for the first time. The Ag–Fe–O thin films deposited at 200–300 °C show both a large and constant absorption coefficient over the whole visible range and an acceptable high sheet resistance. The black AR stack was comprised of the black insulative Ag–Fe–O prepared at 250 °C by RF magnetron sputtering. The observed reflectance is in good agreement with the simulated model. These results indicate the high potential of the black Ag–Fe–O films for use in AR black coatings in touch panel displays for a visually attractive turn-off appearance.
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Stevens, Tyler R., Nathan B. Crane und Rydge B. Mulford. „Topology Morphing Insulation: A Review of Technologies and Energy Performance in Dynamic Building Insulation“. Energies 16, Nr. 19 (07.10.2023): 6978. http://dx.doi.org/10.3390/en16196978.

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Topology morphing insulation enables the on-demand switching of thermal properties between insulative and conducting states through shape change. The adaptive nature of these systems allows them to regulate heat transfer by dynamically altering insulation materials or systems in response to changing conditions, including environmental factors, electrical grid dynamics, and occupant requirements. In this article, we highlight the potential of topology morphing insulation for advancing building envelope design, improving energy efficiency, and facilitating on-demand adjustments in effective thermal conductivity. We provide a comprehensive overview of topology morphing insulation, delving into its underlying principles, mechanisms, and potential applications. This review explores cutting-edge research and the potential application of insights from non-building concepts, such as nature, textiles, and origami. Additionally, it examines crucial aspects such as actuation mechanisms, effectiveness, lifecycle considerations, sustainability implications, and manufacturing feasibility. We discuss the potential benefits and challenges associated with implementing topology morphing insulation solutions. Thanks to its transformative capabilities, topology morphing insulation holds tremendous promise for advancing building envelope design, driving energy efficiency improvements, and facilitating responsive changes in effective thermal conductivity.
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Zhao, Lirong, Yimin Cui, Junyi Li, Yuxi Xie, Wenping Li und Junying Zhang. „The 3D Controllable Fabrication of Nanomaterials with FIB-SEM Synchronization Technology“. Nanomaterials 13, Nr. 12 (11.06.2023): 1839. http://dx.doi.org/10.3390/nano13121839.

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Nanomaterials with unique structures and functions have been widely used in the fields of microelectronics, biology, medicine, and aerospace, etc. With advantages of high resolution and multi functions (e.g., milling, deposition, and implantation), focused ion beam (FIB) technology has been widely developed due to urgent demands for the 3D fabrication of nanomaterials in recent years. In this paper, FIB technology is illustrated in detail, including ion optical systems, operating modes, and combining equipment with other systems. Together with the in situ and real-time monitoring of scanning electron microscopy (SEM) imaging, a FIB-SEM synchronization system achieved 3D controllable fabrication from conductive to semiconductive and insulative nanomaterials. The controllable FIB-SEM processing of conductive nanomaterials with a high precision is studied, especially for the FIB-induced deposition (FIBID) 3D nano-patterning and nano-origami. As for semiconductive nanomaterials, the realization of high resolution and controllability is focused on nano-origami and 3D milling with a high aspect ratio. The parameters of FIB-SEM and its working modes are analyzed and optimized to achieve the high aspect ratio fabrication and 3D reconstruction of insulative nanomaterials. Furthermore, the current challenges and future outlooks are prospected for the 3D controllable processing of flexible insulative materials with high resolution.
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Alander, Tapani M., Pekka A. Heino und Eero O. Ristolainen. „Analysis of Substrates for Single Emitter Laser Diodes“. Journal of Electronic Packaging 125, Nr. 3 (01.09.2003): 313–18. http://dx.doi.org/10.1115/1.1527657.

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Electrically conductive substrates (i.e., metals) are often used in the mounting of semiconductor laser diodes. While metals offer a good electrical and thermal performance, they restrict the system integration due to lack of signal routing capability. Since the implementations utilizing laser diodes have become more common, the integration level has also become an important factor in these products. Mounting of lasers on insulative substrates is the key to large-scale integration. Organic boards form the de facto standard of insulative substrates; however, their use with lasers is impossible due to low thermal conductivity. Ceramics, however, offer nearly the same thermal performance as metals but as electrically insulative materials also provide the foundation for high integration levels. In this study the effects of three different ceramic substrates on the stresses within diode lasers was evaluated. Finite element method was used to calculate the mounting induced straining and the thermal performance of the substrate. The same procedure was employed to examine the optimum metallization thickness for the ceramic substrates. The results present how greatly the substrate material can affect the very delicate laser diode. The ceramic substrates, though having nearly the same properties, exhibited clearly distinctive behavior and a great difference in thermal and mechanical performance.
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Biswas, Ratul Kumar, Nazar Farid, Gerard O’Connor und Patricia Scully. „Improved conductivity of carbonized polyimide by CO2 laser graphitization“. Journal of Materials Chemistry C 8, Nr. 13 (2020): 4493–501. http://dx.doi.org/10.1039/c9tc05737d.

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Direct laser writing (DLW) is a fast and cost-effective technique for printing conductive structures on flexible substrates such as polyimide (PI) by the conversion of insulative PI to conductive carbon.
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Yang, Lixia, Yang Ding, Mengmeng Yang, Yapeng Wang, Deniz Eren Erişen, Zhaofeng Chen, Qiong Wu und Guiyuan Zheng. „Ultra-Light and Ultra-Low Thermal Conductivity of Elastic Silica Nanofibrous Aerogel with TiO2 Opacifier Particles as Filler“. Nanomaterials 12, Nr. 22 (08.11.2022): 3928. http://dx.doi.org/10.3390/nano12223928.

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The thermal radiation phenomenon is more crucial than other thermal transportation phenomena at elevated temperatures (>300 °C). Therefore, infrared radiation resistance and its performance on thermal conduction of nanofibrous aerogel with Titanium oxide (TiO2) filler have been investigated compared to control groups (silica nanofibrous aerogels with and without filler). Nanofibrous aerogel has been produced by electrospun silica nanofibers. Later, TiO2 opacifier and a non-opacifier filled materials were prepared by a solution homogenization method and then freeze-dried to obtain particle-filled nanofibrous aerogel. Moreover, the thermal radiation conductivity of the composite was calculated by numerical simulation, and the effect of the anti-infrared radiation of the TiO2 opacifier was obtained. The fascinating inhibited infrared radiation transmission performance (infrared transmittance ~67% at 3 μm) and excellent thermal insulation effect (thermal conductivity of 0.019 Wm−1K−1 at room temperature) and maximum compressive strengths (3.22 kPa) of silica nanofibrous aerogel with TiO2 opacifier were verified. Excellent thermal insulation, compression and thermal stability properties show its potential for practical application in industrial production. The successful synthesis of this material may shed light on the development of other insulative ceramic aerogels.
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Koyama, A., K. Fukami, T. Yamauchi, N. Nishi, T. Sakka, A. Kitada und K. Murase. „Lateral Growth of Polypyrrole Electropolymerized along Hydrophobic Insulative Substrates“. ECS Electrochemistry Letters 3, Nr. 7 (30.04.2014): G5—G7. http://dx.doi.org/10.1149/2.0021407eel.

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Dissertationen zum Thema "Insulative materials"

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El, Yamani Hamza. „Caractérisation du comportement mécanique de matériaux isolants sous choc“. Electronic Thesis or Diss., Bourges, INSA Centre Val de Loire, 2021. http://www.theses.fr/2021ISAB0007.

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La réduction des risques, sur des sites Seveso et leurs alentours, face aux sollicitations accidentelles ou malveillantes, passe par la sécurisation des bâtiments aux sollicitations dynamiques de type surpression et impact. L’utilisation d’une isolation par l’extérieur, de type matériau isolant et bardage métallique par exemple, semble une piste intéressante techniquement et économiquement permettant d’allier protection face aux risques technologiques et rénovation énergétique.Dans ce travail, deux matériaux représentatifs des isolants thermiques plastiques et minéraux ont été retenus, une mousse polyisocyanurate et une laine de verre. La caractérisation mécanique de ce type de matériaux complexes et à très faible masse volumique, demeure, dans le contexte de sollicitations dynamiques, largement incomplète à l’heure actuelle et les essais mal maîtrisés.Des essais de compression simple et œdométrique en régime statique sont réalisés et un suivi par imagerie à haute résolution associé à de la corrélation d’images numérique permet d’identifier les propriétés mécaniques, d’observer l’hétérogénéité des déformations et de suivre la propagation de fronts de compaction dans le matériau.Des essais dynamiques aux barres de Hopkinson, complétés d’essais DMA, permettent d’étudier la sensibilité à la vitesse de la réponse et de mettre notamment en évidence une dépendance à la vitesse de la contrainte plateau et une insensibilité à la vitesse de la déformation à la densification. Un suivi par imagerie à haute vitesse associé à de la corrélation d’images numérique permet également d’observer l’hétérogénéité des déformations et de déterminer la célérité du front de compaction dans le matériau.Le comportement mécanique des isolants est reproduit au moyen de lois empiriques ou par assemblage de modèles rhéologiques. Une modélisation simplifiée est proposée pour analyser l’effet potentiel d’un dispositif de protection constitué d’un ensemble bardage et isolant face à une sollicitation dynamique transitoire. Elle montre que si un effet atténuateur est possible, son efficacité va dépendre tout à la fois de la signature de la sollicitation et des caractéristiques physiques et géométriques du système de protection
Risk reduction on Seveso sites, particularly for the protection of industrial buildings in the event of an explosion scenario, is a matter of concern. In the context where the insulation of industrial buildings is becoming more widespread, one solution would be to combine thermal insulation and building protection, by exploiting the absorption capacity of common thermal insulation materials. This solution would be interesting from an economic point of view.The aim of this PhD thesis is to experimentally characterise the mechanical behaviour of two insulating materials commonly used in France: a polyisocyanurate foam and a glass wool. Various devices were used to determine the mechanical behaviour, in particular the Split Hopkinson Pressure Bars device, which allows to characterise the mechanical behaviour at high speed loading.The polyisocyanurate foam was characterised in static and dynamic regimes, in unconfined compression and confined compression. These tests showed a sensitivity to the strain rate of the plateau stress in the material, and showed, by using the digital image correlation technique, the heterogeneity of the deformation in the material. The behaviour of the foam was modelled in two ways: firstly with an empirical law and secondly with a rheological model to simulate a dynamic compression test. The glass wool was characterised in simple static compression, and its behaviour was modelled empirically.The modelling based on empirical laws allowed us to carry out some simple simulations of a dynamic stress of explosion type on a cladding-material-structure assembly. The rheological model, which only concerns the polyisocyanurate foam, was used to identify the viscoplasticity coefficient
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Costanza, James. „Environmental and Economic Assessment of Reclaimed Polyurethane Panels: The Case of Diverting Decommissioned Cold Storage Panels From Landfills and Recycling Into Three Forms of Insulative Building Materials“. Thesis, Harvard University, 2015. http://nrs.harvard.edu/urn-3:HUL.InstRepos:24078364.

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This study investigates the long-term thermal performance of polyurethane insulated cold storage panels and the environmental and economic impact of recycling such panels when taken out of service in lieu of discarding them in landfills. It is estimated, as of 2015, over 180 million square feet of insulated cold storage panels are manufactured annually in the U.S. The panels are most frequently constructed of closed-cell, low density polyurethane insulation utilizing HCF 245fa and HCF 134a blowing agents containing up to 6 million metric tons (CO2e) of greenhouse gases. The expected operating lifetime of the cold storage panels is 15 years after which time they are primarily discarded in landfills. This practice contributes to the build-up of greenhouse gases in the atmosphere, destroys valuable insulating and building materials and requires landfill space for the solid waste. Three recycling strategies were investigated as ways to repurpose the discarded framed cold storage panels into new forms of polyurethane insulating materials; repurposed cold storage panels, board stock insulation sheets and blown-in/fill insulation. I used three research methods to quantify the environmental and economic impacts. The first examined the initial and long-term thermal performance of the recycled polyurethane insulation through laboratory testing and extrapolative modeling. The second method was comparative life cycle assessments between the business-as-usual-case of discarding the polyurethane insulation with each of the recycled strategies. Finally, an economic analysis was completed for each recycling strategy to determine the in-use heating & cooling energy savings from the extended life of the recycled insulation. This research shows recycling of discarded polyurethane cold storage panels provide measurable environmental and economic benefit. First, the productive life of the insulation is extended greatly beyond its initial use period reducing the need for fossil fuels and raw materials to make replacement insulations. Secondly, the high insulating value of the recycled polyurethane maximizes future environmental and economic savings from lower fuel demand in space heating and cooling applications. Thirdly, the majority of the sequestered greenhouse gases continue to be bound in the foam; protecting the environment from the release of global warming gases. Finally, by diverting the cold storage panels from landfills, millions of cubic feet of landfill space are unneeded annually.
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Rux, Lorelynn Mary. „The physical phenomena associated with stator winding insulation condition as detected by the ramped direct high-voltage method“. Master's thesis, Mississippi State : Mississippi State University, 2004. http://library.msstate.edu/etd/show.asp?etd=etd-04042004-112949.

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Henriquez, Guerrero Jorge Recarte. „Estudo numerico e experimental sobre vidros termicos“. [s.n.], 1996. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263522.

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Orientador: Kamal Abdel Radi Ismail
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica
Made available in DSpace on 2018-07-21T13:16:24Z (GMT). No. of bitstreams: 1 HenriquezGuerrero_JorgeRecarte_M.pdf: 22581929 bytes, checksum: 43baa03f4d321404f2af400b3968e721 (MD5) Previous issue date: 1996
Resumo: Este trabalho apresenta uma abordagem diferente em relação ao conceito de janelas termicamente efetivas, isto é, janelas que reduzem a energia transmitida para dentro ou fora de uma sala. A idéia é usar um painel de vidro duplo preenchido com material de mudança de fase (pcm), cuja temperatura de fusão é determinada por critérios de conforto térmico. A investigação inclui modelamento dos mecanismo de transferência de calor e radiação através do painel, caracterização ótica de janelas convencionais e compostas, e simulação numérica. As amostras incluem vidros comerciais simples de diferentes espessuras e painéis de vidro duplo de diferentes espessuras e espaçamento entre vidros, preenchidos com ar, pcm e finalmente pcm colorido. O modelo é unidimensional transiente e a simulação numérica foi implementada através do método de diferenças finitas na sua forma explícita. Dos resultados da simulação numérica e dos testes de caracterização óticos foram levantadas curvas de ganho térmico, distribuição de temperatura através do painel e evolução da temperaturas da superfícies interna e externas do painel ao longo de um período de 24 horas de forma a verificar o efeito do pcm no desempenho térmico da janela composta
Abstract: This work present a new concept for thermally effective windows, that is windows which reduce the energy transfer to and fIom the internal ambient. This idea behind this concept is to use a pcm fill in the gap between the two glass panels. The fusion temperature of the pcm is selected according to the thermal cornfort criterion. The investigation includes modeling of the mechanisms of heat transfer relevant to the window problem, the thermal radiation through the glass panels, the optical characterization of conventional and composite window configurations and finally the numerical simulation of these configurations. Because of the lack of information on the thermal and optical properties of national gla~s and specially on the composite configuration optical tests were realized to determine the transmittance and reflectivity of simple glass panels of different thicknesses and spacings, air and pcm filled glass panels and finally coloured pcm filled glass panels. The model is a transient one dimensional and the numerical solution is based upon explicit finite difference scheme. the numerical simulations and the optical tests realized allow the determination of the heat gain, the temperature distribution across the glass panels, the outlet and the inlet instantaneous surface temperatures and finally the overall thermal performance of any glass panels including the proposed system
Mestrado
Termica e Fluidos
Mestre em Engenharia Mecânica
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Le, Gros Mark. „NMRON studies of insulating magnetic materials“. Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/30569.

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Selective excitation pulsed NMRON, CW-NMRON and Thermal NMR methods have been used to study the low temperature ⁵⁴Mn nuclear spin-lattice relaxation mechanisms in magnetic insulators. The selective single and double quantum excitation sequences have been used for the first time in NMRON to obtain single and double quantum rotation patterns, Free Induction Decays, Hahn spin echoes and pulsed T₁ measurements. Two insulating magnets have been studied; MnCl₂.4H₂O and Mn(COOCH₃ )₂ .4H₂O. In the ⁵⁴Mn-MnCl₂ .4H₂O system the temperature dependence of the ⁵⁴Mn spin-lattice relaxation time at zero field was measured between 35 mK and 90 mK and it was found that the dominant relaxation process between 65 mK and 90 mK is an electronic magnon Raman process and below 65 mK a direct relaxation process dominates. Single and double quantum Free Induction Decays and Hahn spin echoes have been used to determine the magnitude and nature of the spin-spin relaxation mechanism for ⁵⁴Mn oriented in MnCl₂.4H₂O at zero applied field. NMRON was observed for the first time in the paramagnetic phase of MnCl₂.4H₂O. The resonance lines are inhomogeneously broadened and 300 kHz wide. A value of <⁵⁴AS>/h=-513.6(3) MHz has been determined for the paramagnetic phase hyperfine coupling constant, and this value has been used to determine the zero point spin deviation of the antiferromagnetic phase. The field and temperature dependence of the ⁵⁴Mn T₁ was measured for values of field above the spin flop paramagnetic phase transition and a field dependent T₁ minimum was discovered at Ba=2.64 T. For the ⁵⁴Mn-Mn(COOCH₃) .4H₂O system two ⁵⁴Mn resonances have been observed and the value of the hyper fine coupling constants for the two sites were found to be <⁵⁴AS>/h=-435 (1) MHz for the ⁵⁴Mn1 site and <⁵⁴AS>/h=-478(1) MHz for the ⁵⁴Mn2 site. The high field spin-lattice relaxation behavior has also been investigated and a T₁ minimum at Ba =2.74 T analogous to that observed in MnCl₂ .4H₂O was discovered. A Hahn echo study of the low field single quantum spin-spin relaxation processes has been performed and anomalous behavior of the spin echo amplitude revealed.
Science, Faculty of
Physics and Astronomy, Department of
Graduate
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Hultberg, Ann-Charlotte, und Emelie Larsson. „Tilläggsisolering inom byggnadsvård“. Thesis, Växjö University, Växjö University, Växjö University, Växjö University, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-220.

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Främsta anledningen till en tilläggsisolering är att det önskas bättre energihushållning i en byggnad. Detta kan göras med olika material och olika tekniker. Inom byggnadsvårdssammanhang förs det en diskussion om de fuktbuffrande materialen är bättre vid tilläggsisolering då de är hygroskopiska än de icke hygroskopiska som är mest frekvent använda i det konventionella byggandet. Denna rapport utvärderar om det finns några dokumenterade fakta som styrker att de hygroskopiska och ekologiska materialen fungerar bättre i byggnadsvårdssammanhang än de icke hygroskopiska. Olika isolermaterial från de två nämnda grupperna jämförs utifrån olika parametrar.


This report evaluates if there are any known facts that support that the hygroscopic and ecologic materials are better in supplement insulation than non hygroscopic. Different kind of insulate materials from these two mentioned groups are compared from without different kind of parameters.

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Holcroft, Neal. „Natural fibre insulation materials for retrofit applications“. Thesis, University of Bath, 2016. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.707590.

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Improving the thermal performance of existing domestic buildings can have multiple benefits: reducing greenhouse gas emissions, reducing the cost of heating and therefore fuel poverty, improving comfort and health. Solid wall buildings constitute around 30% of UK housing stock, and are among the least efficient. However, the installation of solid wall insulation, while improving thermal performance can significantly affect the moisture balance of the building. This can result in mould growth, which can cause structural damage and lead to health problems for the occupants. This thesis explores the use of Natural Fibre Insulation (NFI) materials for internal solid wall insulation. The hygrothermal properties of a range of NFI materials are characterised in order to assess their potential for retrofit applications. This is followed by large-scale testing, which compares three solid wall insulation systems in controlled conditions, the results of which are used to validate a heat and moisture transfer model to further assess performance. Experimental results showed that the risk of interstitial condensation is significantly reduced by the application of natural fibre insulation in comparison to a conventional rigid foam system. Simulation of a solid wall exposed to climatic conditions for the UK revealed that the relative humidity at the interface between the masonry and insulation layers remained at 69% when internally insulated with hemp-lime and 96% with rigid foam insulation, while average moisture content of the masonry was 48% lower when hemp-lime was used. Field tests were also conducted to determine the thermal performance of two solid walls internally insulated with 80 mm of hemp-lime when exposed to real weather conditions. The thermal conductivity of the hemp-lime was found to be 30% higher than when measured in dry stead-state laboratory conditions due to the high moisture content of the masonry. However, its application still resulted in 66% and 68% reductions in the U-value compared to the uninsulated wall from 2.73 and 2.65 W/m2K to 0.93 and 0.86 W/m2K.
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Humaish, Hussein Hafudh. „Thermal techniques for characterizing building insulation materials“. Thesis, Amiens, 2016. http://www.theses.fr/2016AMIE0034/document.

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Cette thèse s'inscrit dans un objectif à long terme de déterminer in situ (et/ou en usage) les propriétés thermiques des matériaux isolants du bâtiment. Notre objectif est de réduire l'écart entre la mesure en laboratoire et la performance réelle des isolants dans les parois de bâtiments. Nous nous sommes fixés deux objectifs principaux au cours de cette étude: 1- Étudier la possibilité d'utiliser la sonde cylindre à choc thermique pour la mesure des caractéristiques thermiques des matériaux isolants du bâtiment. 2- Étudier le comportement thermique d'un isolant en usage en utilisant un montage basé sur le principe de la boite chaude gardée. Cet équipement permet d'effectuer des études dans des conditions climatiques en température et en humidité proches de situations réelles supportées par l'enveloppe d'un bâtiment. Ce travail a permis d'identifier des verrous lors de l'utilisation d'une sonde à choc thermique pour caractériser des matériaux isolants. Il a aussi montré l'intérêt de la boite chaude gardée pour effectuer des études dans des conditions réelles et pour étudier les transferts de chaleur et de masse dans les parois de bâtiments
This thesis is part of a long-term objective to determine in situ (and / or in use) the thermal properties of building insulation materials. We want to reduce the gap between the laboratory measurement and the actual performance of insulation in buildings walls. We have set two main objectives during this study: 1- To study the possibility of using a non-steady state hot probe for measuring thermal properties of insulants. 2- To study the thermal behaviour of insulation materials in use by using a guarded hot box. Climatic conditions in temperature and humidity close to real situations can be submitted supported by hot and cold cells. This work has shown the interest of using thermal probe to characterize insulating materials. Guarded hot box is also interesting for studies in real conditions and to followheat and mass transfer in buildings walls
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Meletse, Thabo Frans. „Development of low cost thermal insulating materials“. Master's thesis, University of Cape Town, 2005. http://hdl.handle.net/11427/8724.

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Includes bibliographical references.
The disadvantaged people in South Africa are unfortunate by virtue of their financial status. It was estimated in 1992 that 20 % of the South African population live in informal settlements. The houses in these settlements are found to be very energy inefficient. This study was aimed at developing low cost thermal insulating materials that can be used to increase energy efficiency of the houses in these informal settlements. This was done by firstly studying the properties of thermal insulation materials. Furthermore, common thermal insulating materials in South Africa were studied and evaluated. Only recycled polymeric based materials were examined for selecting the raw materials that were used to investigate the feasibility of the thermal insulating materials from waste material. The experimental work was extended to construct a thermal conductivity rig that was to be used in measuring the thermal conductivity of both the developed and existing thermal insulating materials. The expanded polystyrene obtained from Sagex (Pty) Ltd and polyester obtained from Isotherm (Pty) Ltd. were evaluated and compared to the manufactured recycled polymer slabs and expanded polyethylene foams (EPEF). Expanded polyethylene foam and recycled polymer slab samples were subjected to mechanical and physical testing. A temperature comparison test and thermal conductivity determination were conducted on both the expanded polyethylene foam (EPEF) and recycled polymer slab (RPS) samples. The scanning electron microscope (SEM) was used to reveal the micro-structures of all the developed thermal insulating material samples. The expanded polystyrene and polyester thermal insulating materials were also examined using the SEM. Optical microscopy was only used on RPS samples. It was found in this research, that the properties that govern the viability of thermal insulating materials are: thermal conductivity (k-value), thermal resistance (R-value), combustibility, moisture absorption and the presence of hazardous gases during burning. The temperature comparison test showed that the recycled polymer slab (RPS) and expanded polyethylene foam (EPEF) retards the flow of heat to levels comparable to that of the locally obtained thermal insulation. The comparative cut bar method was found to be relatively cheap to design and it was ideal for the measurement of the thermal conductivity of polymeric based materials. The k-value of all the EPEF samples was measured to be around 0.04 W.m-¹K-¹ and the RPS k-value was found to be 0.05 W.m-¹K-¹. This is attributed to air pockets with lower conductivities values, found within the structure of the polymeric thermal insulating materials. The porous structure is evident from the SEM micrographs of both the EPEF and RPS samples. One grade of expanded polyethylene foam, the SPX80, had accumulated less moisture when moisture absorption was compared with other EPEF samples. The RPS material did have a propensity for absorption of water. The flammability retardant tests have showed that gypsum board has to be incorporated during service for the RPS and SPX80. The mechanical testing results also suggest that both the EPEF and RPS need to be supported when installed in a ceiling, for example.
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Hoffmann, Ryan Carl. „Electron-Induced Electron Yields of Uncharged Insulating Materials“. DigitalCommons@USU, 2010. https://digitalcommons.usu.edu/etd/749.

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Presented here are electron-induced electron yield measurements from high-resistivity, high-yield materials to support a model for the yield of uncharged insulators. These measurements are made using a low-fluence, pulsed electron beam and charge neutralization to minimize charge accumulation. They show charging induced changes in the total yield, as much as 75%, even for incident electron fluences of <3 fC/mm2, when compared to an uncharged yield. The evolution of the yield as charge accumulates in the material is described in terms of electron recapture, based on the extended Chung and Everhart model of the electron emission spectrum and the dual dynamic layer model for internal charge distribution. This model is used to explain charge-induced total yield modification measured in high-yield ceramics, and to provide a method for determining electron yield of uncharged, highly insulating, high-yield materials. A sequence of materials with progressively greater charge susceptibility is presented. This series starts with low-yield Kapton derivative called CP1, then considers a moderate-yield material, Kapton HN, and ends with a high-yield ceramic, polycrystalline aluminum oxide. Applicability of conductivity (both radiation induced conductivity (RIC) and dark current conductivity) to the yield is addressed. Relevance of these results to spacecraft charging is also discussed.
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Bücher zum Thema "Insulative materials"

1

1923-, Powell Frank J., Matthews Stanley L und ASTM Committee C-16 on Thermal Insulation., Hrsg. Thermal insulation: Materials and systems. Philadelphia, PA: ASTM, 1987.

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Hall, James A. Radiant barrier performance testing to assess effects of dust accumulation, attic ventilation, and other key variables. [Chattanooga, Tenn.]: Energy Demonstrations and Technology, Tennessee Valley Authority, 1988.

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S, Graves Ronald, Zarr Robert R, ASTM Committee C-16 on Thermal Insulation. und ASTM Symposium on Insulation Materials, Testing, and Applications (1997 : Québec, Québec), Hrsg. Insulation materials, testing and applications, 3rd volume. West Conshohocken, PA: ASTM, 1997.

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C, Wysocki Donald, Graves Ronald S, ASTM Committee C-16 on Thermal Insulation. und ASTM Symposium on Insulation Materials, Testing, and Applications (1991 : Gatlinburg, Tenn.), Hrsg. Insulation materials, testing and applications, 2nd volume. Philadelphia, PA: ASTM, 1991.

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Association, Midwest Insulation Contractors. National commercial & industrial insulation standards. 6. Aufl. Omaha, Neb: Midwest Insulation Contractors Association, 2006.

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Association, Midwest Insulation Contractors, Hrsg. National commercial & industrial insulation standards. 4. Aufl. Omaha, Neb: Midwest Insulation Contractors Association, 1993.

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Association, Midwest Insulation Contractors, Hrsg. National commercial & industrial insulation standards. 5. Aufl. Omaha, Neb: Midwest Insulation Contractors Association, 1999.

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A, Brandreth Dale, Hrsg. Improved thermal insulation: Problems and perspectives. Lancaster, Pa: Technomic Pub., 1991.

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9

Knab, Lawrence I. Thermal insulation materials. Gaithersburg, MD: U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology, 1995.

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10

Jian zhu yong jue re jia xin ban jie gou: Jin shu mian he fei jin shu mian. Beijing: Ke xue chu ban she, 2011.

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Buchteile zum Thema "Insulative materials"

1

Küchler, Andreas. „Insulating Materials“. In High Voltage Engineering, 301–54. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-642-11993-4_5.

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Macías, M., und J. de Marcos. „Insulation Materials“. In GAST The Gas-Cooled Solar Tower Technology Program, 303–16. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-83559-9_21.

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Starr, Trevor F. „Insulation Materials“. In Glass-Fibre Databook, 177–208. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1492-9_10.

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Lyons, Arthur. „Insulation materials“. In Materials for Architects and Builders, 417–38. Sixth edition. | Abingdon, Oxon : Routledge, 2019.: Routledge, 2019. http://dx.doi.org/10.1201/9781351109550-13.

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Lyons, Arthur. „Insulation Materials“. In Modern Methods of Construction and Innovative Materials, 187–211. London: Routledge, 2024. http://dx.doi.org/10.1201/9781003360469-18.

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Dzyazko, Yuliya Sergeevna, und Boris Yakovlevich Konstantinovsky. „Thermal Insulating Materials“. In Structural Properties of Porous Materials and Powders Used in Different Fields of Science and Technology, 103–28. London: Springer London, 2014. http://dx.doi.org/10.1007/978-1-4471-6377-0_5.

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Goetzberger, A. „Transparent Insulation Materials“. In Physics and Technology of Solar Energy, 425–45. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3941-7_16.

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Santos, Paulo, Viorel Ungureanu und Luisa Durães. „Circular Strategies in Lightweight Steel-Framed (LSF) Buildings and the Research Project Tyre4BuildIns“. In Creating a Roadmap Towards Circularity in the Built Environment, 83–93. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-45980-1_8.

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AbstractAccording to the UN sustainable development goals, energy and waste management are two of the major concerns of humankind, these being related with the search for a more sustainable built environment. Innovative materials (e.g., recycled rubber-aerogel composite thermal insulation) and advanced construction systems, such as Lightweight Steel Framing (LSF), may contribute to a more sustainable built environment, due to their inherent advantages in comparison to traditional ones. Recently, the European Commission adopted the newly updated European Circular Economy Action Plan (ECEAP), which will be implemented not only to waste materials, such as End-of-Life Tyres (ELT), but also to the construction industry and the built environment. In the first part of the paper, the LSF construction system is described, including its suitability for circular strategies, such as modular construction. In the second part, the Tyre4BuildIns research project is described, which was conceived to develop a new eco-friendly and cost-effective thermal insulation material, made from a mixture of recycled tyre rubber (waste) and an advanced high-performance insulation material (aerogel). It was concluded that, compared to traditional construction, the LSF modular construction system can contribute significantly to a more sustainable built environment, being more suitable for the implementation of circular strategies. Furthermore, the Tyre4BuildIns project allowed the development of an eco-friendly high performance thermal insulation composite material based on recycled tyre rubber and aerogel, contributing to enhance the thermal performance of LSF building elements.
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Shuilin, Zheng, und Xu Kuangdi. „Insulating Mineral Material“. In The ECPH Encyclopedia of Mining and Metallurgy, 1–2. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-0740-1_465-1.

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Shuilin, Zheng, und Xu Kuangdi. „Insulation Mineral Material“. In The ECPH Encyclopedia of Mining and Metallurgy, 1–2. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-0740-1_466-1.

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Konferenzberichte zum Thema "Insulative materials"

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Sundararaman, Saikrishna, und Ray Szparagowski. „Thermally Conductive Electrically Insulative (TCEI) Materials for E-Motors“. In SAE WCX Digital Summit. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2021. http://dx.doi.org/10.4271/2021-01-0222.

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KNEER, MICHAEL, JOSEPH KOO, MARK MILLER und MARK SCHNEIDER. „A cost-effective approach to evaluate insulative materials for low heat flux applications“. In 31st Aerospace Sciences Meeting. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1993. http://dx.doi.org/10.2514/6.1993-840.

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Sundararaman, Saikrishna, und Ray Szparagowski. „Use of Thermally Conductive Electrically Insulative (TCEI) Materials in E-Motor Slot Liner Applications“. In WCX SAE World Congress Experience. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2022. http://dx.doi.org/10.4271/2022-01-0198.

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Kwon, Jisung, Junpyo Hong, Aamir Iqbal, Chong Min Koo und Myung-Ki Kim. „Electromagnetic Shielding of Electrically-Insulating Ionic Solution“. In Conference on Lasers and Electro-Optics/Pacific Rim. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/cleopr.2022.p_ctu8_23.

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Electrically-insulative ionic solutions of KBr, NaCl, and CaCl2 salts are employed as effective electromagnetic interference (EMI) shielding materials. Debye-Drude theoretical models is applied for illuminating the EMI shielding mechanism of ionic solution.
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Vrbova, Pavla, und Lenka Prokopova. „RESEARCH OF THERMAL INSULATION PROPERTIES OF THIN-LAYER INSULATING MATERIAL ON HEAT STORAGE TANKS“. In 22nd SGEM International Multidisciplinary Scientific GeoConference 2022. STEF92 Technology, 2022. http://dx.doi.org/10.5593/sgem2022/6.1/s24.04.

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The article deals with the research of thermal insulation properties of thin-layer insulating material made of hollow glass-ceramic microspheres in relation to technical building installations. Until now, there has been a lack of scientific studies describing the effectiveness of thermal insulation properties of thin-layer insulation materials on distribution systems or technical equipment. In this particular case, the insulation material was applied in a two-millimeter layer to a heat storage tank and the heat losses were compared for four models (model A - storage tank without insulation, model B - storage tank with thin-layer insulation coating made of hollow glass-ceramic microspheres, model C - storage tank with commonly used insulation supplied by the manufacturer for a specific type of storage tank, and model D - storage tank with insulating coating, including classic insulation). The measured data show that in this particular case, thin-layer insulation material cannot be a good competitor to custommade conventional thermal insulation for a given heat storage tank, however, research shows some potential in specific situations that occur in practice such as insulating of complicated pipeline routes and fittings or additional insulation of pipelines within the reconstruction of buildings in case of lack of space for the application of common insulation.
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Schmaljohann, F., D. Hagedorn und F. Löffler. „Systematic evaluation of thin electrically insulating layers on common engineering materials“. In 13th International Conference on Plasma Surface Engineering September 10 - 14, 2012, in Garmisch-Partenkirchen, Germany. Linköping University Electronic Press, 2013. http://dx.doi.org/10.3384/wcc2.463-466.

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Thin insulating layers are often required for typical engineering materials, e.g. steel, alumina, titanium and the respective alloys. A very dense insulating layer for subsequent conducting layers acting as electrical paths is crucial. Experiments have shown, however, that the electrical insulation of such substrates is often not sufficient or fails completely and is seldom repeatable. To determine the most important influences regarding the insulation, a systematic evaluation based on a screening design of experiments for the variation of ten parameters is introduced. The films were deposited using a radiofrequency magnetron sputter system and a non-reactive process as well as a SiO2 target for the deposition of the insulation. A thin layer of a Cu-Ni-alloy was successively deposited through a mask on top of the insulating layer. The resistance between the substrate material and the conducting layer was investigated to determine the major influencing parameters with respect to the quality of the insulation layer. Based on the results, further experiments on film thickness variations with less parameters were carried out and Al2O3 layers were compared to those utilizing SiO2.
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Knudsen, Erik, und Nagaraj K. Arakere. „Numerical Evaluation of Mode I Stress Intensity Factor as a Function of Material Orientation for BX-265 Foam Insulation Material“. In ASME Turbo Expo 2006: Power for Land, Sea, and Air. ASMEDC, 2006. http://dx.doi.org/10.1115/gt2006-90376.

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Foam, a cellular material, is found all around us. Bone and cork are examples of biological cell materials. Many forms of man-made foam have found practical applications as insulating materials. NASA uses the BX-265 foam insulation material on the external tank (ET) for the Space Shuttle. This is a type of Spray-on Foam Insulation (SOFI), similar to the material used to insulate attics in residential construction. This foam material is a good insulator and is very lightweight, making it suitable for space applications. Breakup of segments of this foam insulation on the shuttle ET impacting the shuttle thermal protection tiles during liftoff is believed to have caused the space shuttle Columbia failure during re-entry. NASA engineers are very interested in understanding the processes that govern the breakup/fracture of this complex material from the shuttle ET. The foam is anisotropic in nature and the required stress and fracture mechanics analysis must include the effects of the direction dependence on material properties. Material testing at NASA MSFC has indicated that the foam can be modeled as a transversely isotropic material. As a first step toward understanding the fracture mechanics of this material, we present a general theoretical and numerical framework for computing stress intensity factors (SIFs), under mixed-mode loading conditions, taking into account the material anisotropy. We present mode I SIFs for middle tension — M(T) — test specimens, using 3D finite element stress analysis (ANSYS) and FRANC3D fracture analysis software, developed by the Cornell Fracture Group. Mode I SIF values are presented for a range of foam material orientations. Also, NASA has recorded the failure load for various M(T) specimens. For a linear analysis, the mode I SIF will scale with the far-field load. This allows us to numerically estimate the mode I fracture toughness for this material. The results represent a quantitative basis for evaluating the strength and fracture properties of anisotropic foam insulation material.
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Zhou, Zhangbin, Jianying Li, Daomin Min, Guilai Yin, Shengtao Li und Jiye Mao. „Evaluation of VPI insulating materials and insulation system“. In 2009 IEEE 9th International Conference on the Properties and Applications of Dielectric Materials (ICPADM). IEEE, 2009. http://dx.doi.org/10.1109/icpadm.2009.5252503.

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Kitowski, Zach, Andrew Marsh und Roy Graves. „The Feasibility of Noise Insulating Materials With Variability of Frequencies and Amplitudes“. In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-11024.

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Abstract The objective of this experimental investigation was to determine the effectiveness of different thermal insulating materials noise reduction properties when exposed to acoustic signals of varying frequencies and amplitudes. The experimental system incorporated two boxes separated by a thermal insulation wall. A speaker was used in one box with varied sound amplitude and frequency to test how effective the insulating material was at reducing sound transmission through a wall. The sound level was measured with a microphone in each box and the values were used to calculate the Sound Transmission Loss (STL) for each trial. Fiberglass insulation and cork insulation were the two insulation materials tested. The frequency levels of500 Hz, 1000 Hz, and 2000 Hz were tested. A three factor ANOVA analysis was completed and the null hypothesis was rejected with 95% confidence for each of the three factors. A Tukey test was conducted to determine which factor, if any, had a significant impact on the STL value. The Tukey test determined that frequency had the most significant impact on the STL value followed by the material choice with the average difference of means for comparison groups being 17.92 dB and 7.74 dB, respectively. The Tukey test also determined sound level did not have a significant impact on the STL value. The fiberglass insulation tested had the highest STL value of the two materials tested, with a maximum STL of 49.5 dB at 2000 Hz while the minimum STL was 26.2 dB at 500 Hz. The cork insulation had a maximum STL of 44.4 dB at 2000 Hz and a minimum STL of 10.5 dB of 500 Hz. At 1000 Hz however, the cork insulation had a higher STL than the fiberglass insulation with 32.6 dB and 31.6 dB respectively. This discrepancy might be due to a specific property of the cork dictating how it interacted within a specific frequency range. The test had an overall uncertainty of ±1.34 STL which was much smaller than the difference between sample groups. The ANOVA analysis also showed a strong interaction between the insulating material and the frequency as it had a much greater F-value of 869.56 as compared with the F-critical value of 2.42.
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Coleman, Michael. „Modeling Insulation Leakage Effects on Platinum Resistance Thermometer Performance“. In NCSL International Workshop & Symposium. NCSL International, 2016. http://dx.doi.org/10.51843/wsproceedings.2016.10.

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The purpose of this paper is to discuss electrical leakage in the insulating material of typical platinum resistance thermometers (PRTs) and how it can be modeled to understand its effect on PRT measurement. The paper will present comprehensive background information regarding PRT insulation leakage, what it is, how it is caused, and how it affects PRT measurement. To model the effect on PRT measurement, the insulating materials and sensor circuit in a typical PRT are transformed into an equivalent electrical circuit that is analyzed using SPICE circuit analysis. Detailed diagrams, including equivalent electrical schematics, are used to fully describe the subject. The outcome will provide awareness to PRT users to know how to identify and understand insulation leakage and its effects. It will also demonstrate how to monitor PRTs for insulation leakage and what steps should be taken to prevent measurement errors.
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Berichte der Organisationen zum Thema "Insulative materials"

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Johra, Hicham. Air permeameter for porous building materials: Aalborg University prototype 2023. Department of the Built Environment, 2023. http://dx.doi.org/10.54337/aau545266824.

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The aim of this lecture note is to present the first prototype of an air permeameter for porous building material built at Aalborg University, Department of the Built Environment. This air permeameter setup is primarily intended for porous insulation materials but could be used for all types of materials fitting the sample frame. This lecture note also provides guidelines to operate this air permeameter and perform a state-of-the-art measurement of the effective air permeability.
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Knab, Lawrence I. National voluntary laboratory accreditation program: thermal insulation materials: thermal insulation materials. Gaithersburg, MD: National Institute of Standards and Technology, 1995. http://dx.doi.org/10.6028/nist.hb.150-15.

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Meißner, Frank, Heike Sonntag und Anita Morandell-Meißner. Water uptake measurement for thermal renovations – comparison between non-destructive method, the Karsten tube, and automatic laboratory measurements. Department of the Built Environment, 2023. http://dx.doi.org/10.54337/aau541652209.

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The energy-efficient renovation of existing buildings requires precise knowledge of the wall structure. When using interior insulation systems, the driving rain resistance of the façade is also decisive for the function of the entire wall structure. When using interior insulation on exposed brick facades, the verification can often only be done with the help of a hygrothermal simulation. In practice, a non-destructive method, the Karsten tube or various modifications, is used to assess this essential characteristic value quickly. However, the measured values obtained from this method do not agree with the laboratory-measured values determined on a test specimen taken from the laboratory. This article presents measurements on bricks from several refurbishment projects to determine the cause. They were carried out both in the installed state with the in-situ method and subsequently after brick removal on the same materials under laboratory conditions to bring about comparability concerning the material. This article presents the automatic detection of water uptake of porous materials compared to the in-situ measurement with the Karsten tube. It evaluates the measurement results of both measurement methods.
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Rasinski, Timothy. NVLAP Thermal Insulation Materials. National Institute of Standards and Technology, Mai 2020. http://dx.doi.org/10.6028/nist.hb.150-15-2020.

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MacArthur, D., P. Steadman, J. Bounds, C. Whitley und M. Rawool-Sullivan. Ion flooding to precharge insulating materials. Office of Scientific and Technical Information (OSTI), Oktober 1996. http://dx.doi.org/10.2172/380354.

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Høegh, Britt Haker, Lies Vanhouttegehem und Thor Hansen. Documentation of moisture reduction up to two years after refurbishment of moisture damaged exterior basement wall. Department of the Built Environment, 2023. http://dx.doi.org/10.54337/aau541578714.

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In Denmark, many old buildings are constructed with massive masonry basement walls. Originally, these basements were used for storage or as boiler room. Hence moisture in the basement walls was not considered a problem, and moisture protection of basement constructions was not considered necessary. However, leaving older buildings basement walls exposed to moisture from the surrounding soil, results in a high risk for damage and mould growth on the interior surface of the exterior basement walls. Today, many of these basements are used for daily purposes. Accordingly, moisture problems in the basements are no longer acceptable. Therefore, drainage systems in combination with external insulation of the basement walls are installed in many buildings. Traditionally, insulation materials with a high water vapour resistance are used as external insulation for basement walls in Denmark. However, theoretical approach and field experiences indicate that application of insulation materials with a low water vapour diffusion resistance, results in a larger reduction of the moisture content in the masonry of the basement’s exterior walls. This paper documents moisture measurements from a basement, in which external insulation with low vapour diffusion resistance was applied to the external basement walls. Additionally, at the bottom of the basement walls a horizontal moisture barrier and perimeter drain were installed, as well as heating and natural ventilation of the basement. After one year, a noticeable reduction in moisture content was measured compared to the moisture content before installation, while no further reduction was seen after the second year.
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Stephenson, L. D., Andrew Heffron, Brenda B. Mehnert, Jedediah B. Alvey, Veera Boddu, Elizabeth J. Gao, Deborah J. Lawrence und Ashok Kumar. Prediction of Long Term Degradation of Insulating Materials. Fort Belvoir, VA: Defense Technical Information Center, Mai 2015. http://dx.doi.org/10.21236/ada618149.

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Ramos, Nuno M. M., Joana Maia, Rita Carvalho Veloso, Andrea Resende Souza, Catarina Dias und João Ventura. Envelope systems with high solar reflectance by the inclusion of nanoparticles – an overview of the EnReflect Project. Department of the Built Environment, 2023. http://dx.doi.org/10.54337/aau541621982.

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High reflectance materials constitute an attractive idea to reduce cooling loads, which is crucial for attaining the Nearly Zero Energy Buildings goal, also presenting the benefit of broadening the range of colours applicable in building facades. The EnReflect project intended to re-design envelope systems by increasing their solar reflectance through nanotechnology. The main idea was to produce novel nanomaterial-based coatings with high near-infrared (NIR) reflectance by tuning their optical properties and testing their compatibility with typical insulation technologies such as ETICS. As such, this project focused on the synthesis of nanoparticles with improved NIR reflectance, the evaluation of the hygrothermal-mechanical behaviour of thermal insulation systems with the application of the improved coating solutions, the characterization of the more relevant material properties and the durability assessment. One of the main achievements was the development of a facile synthesis of a nanocomposite with improved performance in the NIR region that allowed the reflectance improvement of a dark-finishing coating. Also, the incorporation of such nanoparticles had a positive effect on keeping their optical properties after accelerated ageing cycles. The development of numerical simulations allowed the estimation of the maximum surface temperature in Mediterranean climates under different optical parameters. The study of the hygrothermal behaviour of thermal enhanced façades led to the development of a new durability assessment methodology which contributed to closing a standardization gap.
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Emrich, Carol, und Roy Coffman. Evaluation of Transparent Insulation Materials in Flat Plate Collectors. Office of Scientific and Technical Information (OSTI), Dezember 1994. http://dx.doi.org/10.2172/1577037.

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Natesan, K., J. H. Park, D. L. Rink und C. A. Thomas. Performance of MHD insulating materials in a potassium environment. Office of Scientific and Technical Information (OSTI), Dezember 1991. http://dx.doi.org/10.2172/5845282.

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