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 20 of 87 for “"Thermal Modeling"”.
-
Thermal Modeling of Spacecrafts
Made available in DSpace on 2014-12-09T17:13:52Z (GMT). No. of bitstreams: 1 7020949.pdf: 5253550 bytes, checksum: 376bb9fe6229a841af9e72f1754e3e1d (MD5) Previous issue date: 1970
-
Thermal modeling of hybrid microelectronics
… is reduced, the power density increases and thermal interaction between heat-producing devices becomes significant. A nondimensional model is developed to investigate the effects of heat source interaction on a substrate. The results predict the maximum temperature created by a device for a …
-
Approximate Thermal Modeling of Radiofrequency Cardiac Ablation
… selected locations in the heart. The resulting thermal injury creates lesions which prevent the generation or propagation of arrhythmias. The ability to predict the appropriate amount of energy required at any ablation site is essential to increasing the efficacy and safety of RFCA. The research …
-
Experimentally validated multiscale thermal modeling of electronic cabinets
Thermal characterization of electronic cabinets is becoming increasingly important, due to growing power dissipation and compact packaging. Usually, multiple length scales of interest and modes of heat transfer are simultaneously present. A steady reduced order thermal modeling framework for …
-
Adaptive thermal modeling architecture for small satellite applications
… simply scaled to fit the mission. The varying thermal environment in space is particularly important to spacecraft design and operation because of its affect on hardware performance and survivability. The Adaptive Thermal Modeling Architecture (ATMA) discussed in this thesis is meant to bridge …
-
Design and thermal modeling of a residential building
… is to design a physical model to simulate the thermal profile of a residential building with a conventional single-zone central heating system. A scale model of a 2-story house was designed and constructed at 1/20 of the length scale of an average lifesize house, with an external heater and …
-
Experimental Validation of Indirect Liquid Cooling Computational Thermal Modeling
… offers a modular and lightweight approach to thermal management. As part of development for the Navy’s integrated Power and Energy Corridor (NiPEC), multiple computational thermal analyses of this cooling method have been conducted but not yet tested against experimental results. NiPEC …
-
Masonry heater performance evaluation: efficiency, emissions, and thermal modeling
Two stack loss efficiency measurement methods, the Total Combustible Carbon (TCC) and Combustibles Meter (CM) methods, have been modified for use on masonry heaters. The applicability of the two methods has been verified with 6 tests on two masonry heaters. Each test starts with a cold heater and …
-
Heterogeneously bonded vertical cavity surface emitting lasers and thermal modeling
… but with degraded performance due to excessive thermal dissipation. A VCSEL array with an area of 1.0 x 1.2 mm2 is transferred onto a Cu substrate which has a higher thermal conductivity compared to both GaAs and PET. For the transfer bonding process, the final device yield is enhanced by …
-
Characterization and Thermal Modeling of Laser Formed Ti-6Al-4V
… size and presence of the layer band is due to thermal cycling as opposed to segregation effects which were ruled out using quantitative compositional analyses. Through analysis of the microstructural results the gradient in the nominal microstructure and formation of the layer band in layer n …
-
Integrated Electrical and Thermal Modeling, Analysis and Design for IPEM
… of existing CAD tools, multidisciplinary modeling and system optimization. Two major benefits are expected from the utilization of the proposed integrated design methodology. Firstly, it will significantly speed up the design process and will eliminate errors resulting from repeated manual …
-
Thermal Modeling and Validation Testing of a Miniature Xenon Ion Thruster
… a two-</p> <p>dimensional model of the transient thermal environment of MiXI-CP-V3 was</p> <p>created. Validation testing was conducted in order to assess the accuracy of the</p> <p>thermal model. During testing, temperature was measured at eight locations</p> <p>across MiXI. From the test data it …
-
Evaluation and Application of Thermal Modeling for High Power Motor Improvements
… efficiency and small size and weight. Accurately modeling the thermal properties of an electric motor is critical to properly sizing the motor. Improving the cooling of the motor windings allows for a more efficient and power-dense motor. There are a variety of methods for predicting motor …
-
Thermal Modeling of Cooling Time of Submarine Dacite Lapilli Tuff: Brothers Volcano, Kermadec Arc
… analyzed samples for clast radius, density, thermal conductivity, and specific heat. This data was then entered into the heat transfer equation of a sphere to create a cooling curve model of a lapilli dacite clast from its initial eruption temperature to the Curie temperature of magnetite to …
-
Electromagnetic-thermal modeling for high-frequency air-core permanent magnet motor of aircraft application
… Therefore, developing electromagnetic (EM) and thermal analytical methods with computational efficiency and decent accuracy is a key enabling factor for future multi-physics optimization of motor power density. In this thesis, the detailed development process of electromagnetic analytical …
-
An Extended Theory of Imperfect Modeling - With Application to the Thermal Modeling of Spacecrafts
Made available in DSpace on 2014-12-10T22:48:12Z (GMT). No. of bitstreams: 1 7206959.pdf: 4749149 bytes, checksum: 2d68c009a65777766410d5bd651739a2 (MD5) Previous issue date: 1971
-
Nonlinear electromagnetic-thermal modeling using time domain finite element method in the machinery design
In this thesis, an electromagnetic-thermal co-simulation algorithm is developed for the three-dimensional modeling of electric machines. To couple electromagnetic (EM) and heat transfer processes, the time-domain finite element method is employed for its capability of modeling complex geometries. …
-
Design and thermal modeling of a non-invasive probe for measuring perfusion by thermodiffusion
This research 1) explores the feasibility of developing a non-invasive probe to precisely quantify microcirculatory blood flow (tissue perfusion), in real time and in absolute units, and 2) presents designs and models of such a probe, along with an evaluation of various design-model combinations. …
-
Thermal modeling for calculation of formation temperatures for deep water wells with chemical heat source
… as cementing for deep water wells. Altering the thermal stresses results in increased tangential stresses in the vicinity of the wellbore and therefore increases the fracture gradient. Thermal stresses can be increased through a controlled exothermic chemical reaction of certain salts which are …
Page 1 of 5