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 39 for “"Thermal simulation"”.
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Inverter Dynamic Electro-Thermal Simulation with Experimental Verification
A full electro-thermal simulation of a three-phase space-vector-modulated (SVM) inverter is performed and validated with measurements. Electrical parameters are extracted over temperature for the insulated gate bipolar transistor (IGBT) and diode electro-thermal models. A thermal network …
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Design Optimization of Hybrid Switch Soft-Switching Inverters using Multi-Scale Electro-Thermal Simulation
… inverter using a library of dynamic electro-thermal component models parameterized in terms of electrical, structural and material properties is presented. A multi-scale electro-thermal simulation approach is developed allowing for a large number of parametric studies involving multiple …
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Multi-Scale Design, Thermal Simulation, Fabrication, Surface Engineering and Characterization of TPMS Structures for Atmospheric Water Generation
… this study, they were parametrically modeled and thermally simulated to evaluate their surface area-to-volume ratio and cooling performance to identify the most promising designs. Regression analyses and multi-objective optimization were performed to identify optimal design parameters for each …
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DESIGN, THERMAL SIMULATION AND ECONOMIC FEASIBILITY ANALYSIS OF A PLANT FACTORY HOUSED IN A UNDERGROUND MINE DRIFT
… Fluent software and the results are used in the thermal simulation to predict heating, ventilation and air conditioning (HVAC) energy load as well as electricity consumption of an UGPF in OpenStudio energy simulation software. A 550 m2 floor UGPF is designed considering the metal mine (Cu, Zn and …
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Neutronic-Thermal Simulation of Micro Reactor Designs for the Purpose of Analyzing the Impact of Thermal Expansion and Hydrogen Migration in Metal Hydride Moderator
… dimensions to perform steady state neutronic-thermal coupled simulation with the inclusion of an additional physics system. This work accomplishes this, by adding thermal expansion and zirconium hydride-based hydrogen diffusion to the neutronic-thermal simulation of multiple heat pipe …
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A new tool for the validation of dynamic simulation models
… the causes of discrepancies between dynamic simulation models and measured data is described. Whilst principally aimed at the validation of building thermal simulation codes, the method may rind application in the validation of simulation models from other disciplines. The new method relies …
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Electrothermal Analysis of Gallium Nitride Island Transistor eHEMT Devices for Fault Tolerant Design
A full 3D thermal simulation structure was built using Atar based on the GS66516T device from GaN Systems with individually controllable generation regions for each island transistor in an array. The thermal model was linked to electrical SPICE models in OptiSPICE to produce an electrothermal …
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Degradation and Breakdown of Ultrathin Gate Oxide
… that separates the soft and hard breakdown, thermal simulation is done using finite element analysis. The effects of interfacial thermal resistance and nanoscale heat conduction are included in the thermal model. The simulation results show that the diameter of leakage path is between 0.1 and …
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A thermomechanical motorsport tyre model applicable for real-time driver-in-the-loop simulations
… testing limitations and the advances in the simulation technology, the driver-in-the-loop type simulation environments have gained great popularity over the past decade and become the norm used in the high level of motorsport engineering for driver and vehicle development purposes. Since the …
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Model order reduction of electro-thermal MEMS
The modeling of electro-thermal processes, for example Joule heating, is becoming increasingly important in microsystems (in the following MEMS) development. In microelectronic systems, for example, high temperatures may cause the malfunction or even destruction of the device. Other devices, such …
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Investigating thermal dependence on monolithically-integrated photonic interconnects
… architecture and system perspectives. High thermal sensitivity of the essential optical ring resonator imposes constraints on the applicability of optical links in the electro-optical systems. To investigate the thermal dynamics as well as to develop advanced ring thermal-tuning mechanisms, …
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Influence of environmental conditions and architectural form on the design and thermal performance of the flat-plate solar collector system.
… by the nature of their design and inherent thermal mass, are sensitive to the changes in the prevailing climatic conditions. A computer program has been developed to predict and display the dynamic performance of solar water heating systems and their installation designs under transient …
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Thermal Analysis of Indirect Liquid Cooling for the Navy integrated Power Electronics Building Block
… cold plate, has been chosen as a potential thermal solution. A half-iPEBB thermal model was created and tested in steady state using computational fluid and thermal simulation. The chosen cold plate design using a flow rate of 8.4 gpm and inlet temperature of 25°C was found to reduce MOSFET …
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Comparison of simplified models of urban climate for improved prediction of building energy use in cities
Thermal simulation of buildings is a requisite tool in the design of low-energy buildings, yet, definition of weather boundary conditions during simulation of urban buildings suffers from a lack of data that accounts for the UHI effect. To overcome barriers preventing the use of more representative …
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Simulation, testing and design of a fully adhesive bonded flat plate solar collector for highly automated production
This thesis presents simulation results and experimental data for a collector type with an all-round supported absorber and a fully adhesive edge bond that is produced on a highly automated production line. A literature review discussing measures to reduce the convective heat loss in flat plate …
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Passive solar space heating in housing with particular reference to the Scottish climate.
… year had been compiled for use with a dynamic thermal simulation programme. It was also established that within the U.K. context, Scottish sites are generally in a favourable position for solar utilisation, since heat demand increases with latitude faster than the solar supply decreases. Known …
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Profitable thermal renovation of hotels to combat climate change and depletion of fossil fuels: the case of Cyprus
… and industry-wide and a hotel guest survey. Thermal simulation of hotels in present and future climates was used to identify technically viable renovation strategies. Strategies found cost-effective were further checked for sensitivity to energy prices, hotel occupancy and climate. The major …
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Investigating the environmental performance of government primary schools in Egypt : with particular concern to thermal comfort
… and the research focused on investigating the thermal comfort of classroom's occupants and looking into passive ways of enhancing the design performances. Different studies including multi-approaches techniques were employed in order to achieve the main aim of the research. These studies …
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