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 443 for “"thermal analysis"”.
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Thermal analysis of biochemical systems
… how ambient temperature disturbances impact the thermal measurement. To better describe this behavior, a simplified state-space thermal model was created to predict the disturbance rejection of a custom DSC instrument. This model was verified experimentally using linear stochastic system …
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Thermal analysis of a concentrating photovoltaic receiver
… paper presents the theoretical and computational analysis for a photovoltaic (PV) receiver for the Science Applications International Corporation (SAIC) dish concentrator. During photovoltaic energy conversion, thermal energy is also generated which results in increases in cell temperature. …
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Thermal analysis of power hybrid microelectronic packages
… a simplified nondimensional approach for the thermal analysis of power hybrid circuits is presented. The new technique uses only the metallization and the substrate as layers and represents everything below the substrate by an external thermal resistance (expressed as an equivalent convective …
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Thermal Analysis and Cation Doping of Nafion Membranes
… membrane</p> <p>materials. High diffusivity, thermal stability, and existing research make sodium an</p> <p>important cation. Cations Li+, K+, Cs+, Ca2+, Ni2+, and Cr3+ have been studied for</p> <p>comparison. Virgin and used gas diffusion layer (GDL), catalyst coated membrane</p> <p>(CCM), …
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Thermal Analysis of Milkweed Floss Using TG/FTIR
<p>The thermal analysis of milkweed and several individual commercial samples of .similar chemical composition has been carried out. By combining a two-stage thermal process. (pyrolysis-combustion) with TG-FTIR, it has been possible to identify the major organic volatile products during pyrolysis …
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Device-level thermal analysis of GaN-based electronics
… device temperature increases. Thus, effective thermal management of GaN-based electronics is a key to enabling the technology to reach its full potential. Despite the vast amount of research into thermal issues in GaN-based electronics, including both modeling and experimental studies, there …
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Thermal analysis of PANSAT batteries and electrical power subsystem
The thermal design of a spacecraft ensures proper heat transfer so all components and subsystems remain within prescribed temperature limits during all aspects of the spacecraft's mission. This thesis develops a point to-point heat flow model of the Electrical Power Subsystem (EPS) and its …
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Spectroscopic and thermal analysis of clay mineral-organic composites.
… acetone / water entraining agent and subsequent analysis by Diffuse Reflectance Infrared Fourier transform Spectroscopy (DRIFTS), X-Ray Diffraction (XRD), Thermogravimetric Analysis (TGA) and Evolved Gas Analysis (EGA) using TG-Mass Spectrometry. This has revealed the remarkable thermal stability …
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Miniaturization, Packaging, and Thermal Analysis of Power Electronics Modules
… layout and construction (with regards to thermal dissipation), materials comparisons have been made, and thermal simulations and experimental verifications performed. Issues relating to standardized power electronic module design and the efforts of this researcher at the Microelectronics …
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Thermal Analysis and Response of Grid-Stiffened Composite Panels
A study aimed at determining the thermal deformation response and thermal buckling loads of rectangular grid-stiffened composite panels is presented. Two edge conditions are considered for the panel, one in which all panel edges are free to deform, and another when all the edges are restrained. In …
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Thermal Analysis of a Vaporization Source for Inorganic Coatings
A thermal analysis of a conventional vaporization source by finite difference methods, including experimental validation, is presented. Such a system is common to industries whose chief concern is the precipitation of inorganic coatings. Both the physical and the model systems are comprised of a …
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Thermal Analysis of Binding of Organic Pollutants to Titanium Dioxide
… direct oxidation by holes. Thermogravimetric analysis (TGA) was performed on four different classes of compounds; iodinated contrast agents (iohexol and diatrizoate), polycyclic aromatic hydrocarbons (perylene and pyrene), the antibacterial agent triclosan and the pesticide atrazine, to …
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Thermal Analysis of Multi-Cylinder Drying Section with variant Geometry
This specific-purpose mathematical model was developed for the drying process in a multi-cylinder drying section. The unsteady state of one-dimensional heat conduction equation has been applied to mathematical model of both, cylinder shell and paper web. The internal mass transfer of the paper web …
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Three-dimensional thermal analysis of curved concrete box girder bridges
… the bridge length is valid and a two-dimensional analysis is sufficient to determine the distribution of temperature within the cross-section. However, in curved bridges, a three-dimensional analysis is necessary to predict the temperature distribution within the cross-section and along the axis …
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Thermal analysis of dry spent fuel transportation and storage casks
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1996.
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Development of a Web application : a HVRL thermal analysis software
In this thesis, I describe the development of the Thermal Analysis Software for the High Voltage Research Laboratory at MIT. The goal of the Thermal Analysis Software is to provide a means to monitor and analyze valuable infrastructure like transformers.The civil and electrical engineering tasks, …
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A study of differential thermal analysis utilizing statistical experimental design
A study was made of the problem of differential thermal analysis utilizing statistical experimental design. A factorial type of design was chosen to yield maximum efficiency of the data obtained. “Lakeland”, Florida Kaolin of commercial whiteware grade was selected because of its relative purity. …
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Quantification of solidification characteristics of aluminum-silicon alloys by thermal analysis.
… of the liquid alloy is realized by performing thermal analysis on the alloy's cooling curve. The thermal analysis technique has been used for many years as a simple checking tool for the liquid alloy in the ferrous and nonferrous foundry. In the present work the technique's potential is …
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Development, thermal analysis, and verification of an inverted pendulum thrust stand
… inverted pendulum thrust stand. Thermal drift was investigated on the thrust stand with component level, sub-system level, and system level testing. Thermal drift data were analyzed and are discussed with recommended mitigation strategies. Relative error was calculated on the …
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Optical and Thermal Analysis of a Heteroconical Tubular Cavity Solar Receiver
… The second stage of development focused on the thermal and thermodynamic performance of the Heteroconical receiver for different geometric configurations. This stage of development allowed for the investigation into the effect of cavity shape and concentration ratio on the thermal performance of …
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