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 40 for “"Heat Transfer Analysis"”.
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Heat transfer analysis of a heat exchanger plate
Thesis (M.S.)--Michigan State University of Agriculture and Applied Science. Dept. of Agricultural Engineering, 1962
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Heat transfer analysis of thermoelectric driven swirling flow
… a challenging problem to remove the intensive heat from the divertor region. The solid plasma facing materials (PFM) suffer from the sputtering and thermal stress. An alternative way is to utilize liquid metal especially the liquid lithium as the divertor material. An experiment on CDX-U found …
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Transient heat transfer analysis of heat exchangers in a Marnoch Heat Engine
The Marnoch heat engine (MHE) is a new type of power generation device that is under research and development at the University of Ontario Institute of Technology. In this thesis, the transient heat transfer behaviour of the source heat exchanger of the Marnoch heat engine is studied, and its …
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Heat Transfer Analysis of an Oblique Jet Impingement Cooling on CMC Rough Surface
… composite, utilized in components like heat shield of space vehicles, flame holders and disc brakes. To be used in both static and dynamic components of a future gas turbine engine and even with high temperature capabilities of these CMC components, convection cooling will still likely …
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Heat-transfer analysis of double-pipe heat exchangers for indirect-cycle SCW NPP
… up to 625 oC. This study presents the heat transfer analysis of an intermediate Heat exchanger (HX) design for indirect-cycle concepts of Pressure-Tube (PT) and Pressure-Vessel (PV) SCWRs. Thermodynamic configurations with an intermediate HX gives a possibility to have a single-reheat …
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The Patch Integral Method (PIM), a New Heat Transfer Analysis Tool for Hypersonic Wind Tunnel Facilities at NASA Langley
… an approximate method has been used to obtain heating data with the data gap, but a new, higher-fidelity method has been developed that patches the data gap and performs integral heat transfer analysis on the temperature data, directly solving the heat equation and avoiding unnecessary …
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Transient nonlinear heat transfer analysis using the finite element method in the context of the requirements of thermal analysis in a mine
… to analyse two-dimensional; nonlinear, transient heat conduction in non-isotropic solids using the finite element method. This program is an extension of an existing program that analyses thermomechanical stress in solids which may have prescribed temperature and flux boundary conditions. The …
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Assessment of the Thermal Improvements Awarded by Horseshoe Vortex Elimination on a Turbine Stator Blade in Computational Fluid Dynamics and Conjugate Heat Transfer
… is three-dimensional, viscous and turbulent. The analysis looks at the steady-state solution only. The meshing operation and the calculations are made using NASA-developed 3D codes: TCGRID and Swift. The author concludes that the drop in blade surface temperature reaches 109.6 K in a designated …
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A transient heat probe sensor for measuring transpiration in the stem of woody plants.
… of woody plants. This system utilizes a single heated thermistor probe which is alternately and automatically switched between a constant (heating phase) and a variable (cooling phase) temperature mode of operation. Experiments reported here have been carried out in two distinct porous medium, …
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A Numerical Model for Thermal Effects in a Microwave Irradiated Catalyst Bed
Electromagnetic and heat transfer analysis is used to determine possibility of selective heating of nanometer-sized, metallic catalyst particles attached to a ceramic support through microwave irradiation. This analysis is incorporated into a macroscopic heat transfer model of a packed and …
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Thermal properties of structural details in wood frame homes : analysis and recommendations
… 150 years ago. This study centers around the analysis of the thermal properties of structural details in light wood frame homes, focusing on wall construction details for both retrofit and new construction. A two dimensional analysis software, THERM 5.2, is used to perform finite element heat …
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Modeling of Thermoplastic Composite Filament Winding
… quality. These include models that describe the heat transfer, consolidation and crystallization processes that occur during fabrication of a filament wound composites structure. A comprehensive thermal model of the thermoplastic filament winding process was developed to calculate the temperature …
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On Determining Spontaneous Ignition in Porous Materials
… Damkohler number, defined as the dimensionless heat generation parameter for a self-heating body, is described in terms of two key material constants and these materials are related to real incident spontaneous ignition scenarios. The Damkohler number is compared to the critical Damkohler …
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A Monte-Carlo optical workbench for radiometric imaging system design
… and to combine this knowledge with radiation heat transfer analysis to create a radiometric imaging design tool. In particular, the tool is aimed at design of reflective radiometric imaging telescopes, capable of highly accurate heat flux measurements, to be used in space-borne satellite …
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Métodos de redução de base para problemas térmicos em regime transiente com condições de contorno de radiação e convecção
… interest in reduction methods for transient heat transfer analysis. Particularly, for transient heat conduction, it has been shown that reduction methods based on Lanczos-type algorithms or Ritz methods are most effective than the usual direct approach (α-methods) or classical modal methods. …
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Predicting microstructural heterogeneities in the laser powder bed fusion of γ′ strengthened nickel-base superalloys
… (1) CALPHAD approach, (2) finite element analysis (FEA), and (3) multi-phase field modelling. CALPHAD-based models were utilised to explore how alloying additions affect the material's printability properties due to changes in phase transitions, phase-fraction evolution, and solute …
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Design of an FSAE Cooling System for Electric In-hub Motors
… During the design process, extensive heat transfer analysis was conducted for liquid cooling, air cooling, and heat pipes. Additionally, CFD was conducted for various water cooling architectures to determine the influence of coolant flow direction and channel dimensions on cooling …
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Development of the capability of testing the accuracy of thermal CAD software for electronic circuit design
… predicted by a lumped-parameter one-dimensional heat transfer analysis. The comparison agreed within the expected limits for this simple analysis and identified areas for possible improvement both of the model and the experimental technique. Thermal design of a circuit is critical because …
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An analysis of self-cooling with infiltrated porous composites including the effect of the melt layer
… on a porous composite which retards its own heating rate by sacrificing its infiltrant. A transient one-dimensional heat-transfer analysis was conducted considering both the heats absorbed by melting and vaporization of the infiltrant from within the matrix. A finite-thickness liquid layer …
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