Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 85 for “"Thermal insulation"”.
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Soap based thermal insulation as an environmental alternative to petroleum based thermal insulation
… to investigate an alternative to petroleum based thermal insulations, by using natural and recycled materials. The methodology used is centered on the use of the basic ingredients of waste animal fats, waste oils and a potash derived lye mixture, combined to create a crude soap. This soap is …
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A Novel Switchable Thermal Insulation Technology
Switchable thermal insulation, in the form of an opaque panel that alternates between thermally conductive and insulated states, can be an effective means of regulating the thermal environment by selectively transferring heat between the indoor and outdoor environments. Pioneering work has been …
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Thermal insulation of wet shielded metal arc welds
Thesis (Nav. E.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1994, and Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Materials Sciences & Engineering, 1994.
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Advanced thermal insulation for energy efficient buildings : structural performance of aerogel composite panels
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 …
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Greening the Green: An Investigation of Circular Economy in the Life-cycle of Building Thermal Insulation
… (PUR) based polyisocyanurate (PIR) building thermal insulation product. Sensitivity analysis was successfully conducted to identify and assess the sources of uncertainty within the model. Moreover, the simulation results were compared against available secondary and experimental data. The …
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Evaluation of the thermal performance and cost effectiveness of radiant barrier thermal insulation materials in residential construction
… can be achieved in many ways including proper insulation of the building envelope. In recent years, considerable attention was given to the use of radiant reflective insulating barriers. Over the past years, reflective barrier insulation companies nationwide have experienced significant growth …
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A study of heat transfer through clothing assemblies
… and construction of clothing with regard to thermal comfort. In one part of this work, studies were concentrated on the clothing thermal insulation in windy conditions. In this part, a newly designed cylindrical togmeter and a theoretical model have been developed. The numerical solution …
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Biological growth on rendered façades
… built with constructions of thin rendering on thermal insulation, a so called ETICS construction (External Thermal Insulation Construction System). This construction consist most often of a framework of wooden studs with thermal insulation in between, and gypsum boards or cement based boards on …
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Storage life of fresh whitefish fillets in grass fiber boxes and expanded polystyrene boxes
… The objective of this study is to evaluate thermal insulation and properties of the box to industry standard. Further to determine the impact on shelf life and quality of fresh cod fillets stored in both insulated grass fiber packaging and EPS boxes. During this study, two ice melting tests …
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Moisture safety in wood frame walls : blind evaluation of the hygrothermal calculation tool WUFI 5.0 using field measurements and determination of factors affecting the moisture safety
… houses have increased. However, thicker thermal insulation in walls increases the risk of high relative humidity levels and the risk of mould‐related damage in Wood frame houses. In order to predict moisture damage it is important to have a properly verified, userfriendly and reliable …
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Truss core sandwich panels with compacted aerogel insulation
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, …
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Biological growth on mineral façades
… to occur mostly on façades of render applied on thermal insulation, but apart from this it is difficult to find clear relationships indication which façades might be infected. The aim of this project is to explain why certain façades gets heavy biological growth while other seemingly similar do …
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Cellulose Nanofoams: 3D Printing and Characterization
… focused on two primary objectives: enhancing the thermal regulation capabilities and mechanical properties of cellulose nanofibrils (CNF) nanofoams, and developing a reproducible methodology for printing customized three-dimensional (3D) structures using direct-ink-write (DIW) technology and …
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Moisture Safety in Wood Frame Buildings - Blind evaluation of the hygrothermal calculation tool WUFI using field measurements and determination of factors affecting the moisture safety
… buildings has increased. However, thicker thermal insulation in building envelopes increases the risk of high relative humidity levels and the risk of mold-related damage in wood frame buildings. In order to predict the risk of moisture damage it is important to have a properly verified, …
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Acoustic and Thermal Properties of Recycled Porous Media
… polyurethane binder for acoustic absorption and thermal insulation applications. The resultant materials contains a high proportion of open, interconnected cells that are able to absorb incident sound waves through viscous friction, inertia effects and thermal energy exchanges. The materials …
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On the oxidation of high-temperature alloys, and its role in failure of thermal barrier coatings
Thermal barrier coating (TBC) systems are applied to superalloy turbine blades to provide thermal insulation and oxidation protection. A TBC system consists of (a) an outer oxide layer that imparts thermal insulation, and (b) a metallic layer that affords oxidation protection for the substrate …
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Thermal Conductivity of foamed concrete
A systematic study of the thermal conductivity of foamed concrete for assorted values of (i) foam content (25%, 50% and 70 %), (ii) water-cement ratio (0.35- 0.55) and (iii) polymer content (5 to 20 % of cementitious material weight) is presented. Experiments were done using a heat flow meter …
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ENGINEERING THERMAL CONDUCTIVITIES FOR ENERGY APPLICATIONS
… underscores the urgency for innovations in thermal management materials and structures. Thermal conductivity engineering stands at the forefront of these innovations, aiming to optimize the transfer or insulation of heat for various energy applications. This dissertation explores the …
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