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.
Results
Showing 1 to 9 of 9 for “"transient thermal model"”.
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Design and analysis of a battery for a formula electric car
… major pack components is discussed. Finally, a transient thermal model of the pack is established to guide design choices about cooling.
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GATE DIELECTRIC BREAKDOWN PHYSICAL ANALYSIS AND STUDIES -2D MODELING OF BREAKDOWN THERMAL EFFECT
… fully understood. In this project, a theoretical model has been built based on the electro-thermal migration phenomenon to predict the size of DBIE under the influence of current density and temperature. TEM micrograph observations during the formation of DBIE have been verified by constructing a …
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Gas lift valve failure mode analysis and the design of a thermally-actuated positive-locking safety valve
… Gas lift valves and oil well systems have been modeled but system failure modes are not well understood. In this thesis a quasi-steady-state fluid-mechanical model and a transient thermal model are constructed to study failure modes and sensitivities of a gas-lifted well system including the …
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Non-invasive Method to Measure Energy Flow Rate in a Pipe
… install and less expensive has been developed. A thermal interrogation method using heat flux and temperature measurements is used. A transient thermal model, lumped capacitance method LCM, before and during activation of an external heater provides estimates of the fluid heat transfer coefficient …
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System Level Modeling of Thermal Transients in PEMFC Systems
Fuel cell system models are key tools for automotive fuel cell system engineers to properly size components to meet design parameters without compromising efficiency by over-sizing parasitic components. A transient fuel cell system level model is being developed that includes a simplified transient …
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Optimization of Bonding Geometry for a Planar Power Module to Minimize Thermal Impedance and Thermo-Mechanical Stress
… on development a planar power module with low thermal impedance and thermo-mechanical stress for high density integration of power electronics systems. With the development semiconductor technology, the heat flux generated in power device keeps increasing. As a result, more and more stringent …
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Processing Mechanics of Additive Friction Stir Deposition
… and 3) traversing shear flow. The analytical models provide 'back-of-the-envelope' estimates of mechanical requirements (machine torque, for example), and straightforward algebraic equations for estimating the peak strain rate associated with deformation and the expected residence time of …
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Intelligent Non-Invasive Thermal Energy Flow Rate Sensor for Laminar and Turbulent Pipe Flows
… the development of an intelligent non-invasive thermal energy flow rate sensor for laminar and turbulent pipe flows. Energy flow rate is the thermal energy that is carried by a fluid, for example, in a pipe to heat or cool a space in a building. It can be measured by an energy flow rate sensor …
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Control-Oriented Thermal Model for a Hybrid Vehicle Battery
… temper- ature information can be used for better thermal control of the cells in the battery pack. Lithium-ion cells are known to have a measurable temperature gradient when operating un- der extreme conditions. As a result, the surface temperature of cells as measured by the temperature sensors …