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 11 of 11 for “"Numerical Heat Transfer"”.
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Macroscopic convection in the thin-film processor
… search for a generalizable 'intrinsic' process heat transfer film coefficient, i.e., one that includes the effects of axial dispersion of the process fluid. Such a parameter would be helpful in the design and scale up of thin-film equipment. The following approach was used to investigate this …
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Second-Surface Mirror Effects in Thin-Film Absorber Layers
… University has been developing analytical and numerical heat transfer models for NASA's Langley Research Center for more than 25 years. Recent versions of these models are being used in the design of the next-generation thermal radiation detectors intended for Earth radiation budget campaigns. …
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An actively cooled floating element skin friction balance for direct measurement in high enthalpy supersonic flows
… this did not influence the force measurement. Numerical heat transfer calculations were conducted for design feasibility and analysis, and to determine the effectiveness of the active cooling of the floating head. Analysis of the measurement uncertainty in cold supersonic flow tests show that …
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Characterisation of the effective thermal conductivity in the near wall region of a packed pebble bed
… parameter that is representative of the overall heat transfer in a packed bed of spheres. An accurate prediction of the effective thermal conductivity is necessary for the design and analysis of packed pebble bed gas-cooled reactors, especially when considering the safety case. The wall effect …
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Thermal Detection of Embedded Tumors using Infrared Imaging
… Experiments were conducted using a resistance heater that was embedded in agar in order to simulate the heat produced by a tumor in the biological tissue. The resulting temperature distribution on the surface was imaged using an infrared camera. In order to estimate the location and heat …
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DESIGN, THERMAL SIMULATION AND ECONOMIC FEASIBILITY ANALYSIS OF A PLANT FACTORY HOUSED IN A UNDERGROUND MINE DRIFT
… by surface weather. This study developed a numerical heat transfer model to simulate heat transfer through the surrounding rock envelope using ANSYS Fluent software and the results are used in the thermal simulation to predict heating, ventilation and air conditioning (HVAC) energy load as …
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Development of an Advanced Stem Heating Model
A new one-dimensional heat conduction model for predicting stem heating during fires is presented. The model makes use of moisture and temperature dependent thermal properties for bark and wood. Also, the thermal aspects of the processes of bark swelling, desiccation, and devolatilization are …
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Thermally Developing Electro-Osmotic Convection in Circular Microchannels
… wall temperature (CWT) and constant wall heat flux (CHF) boundary conditions. Established by a voltage potential gradient along the length of the microtube, the hydrodynamics of such a flow dictate either a slug flow velocity profile (under conditions of large tube radius-to-Debye length …
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HEAT TRANSFER ANALYSES OF LIQUID-HEATED BOILING FLUIDS WITH ATTENTION TO TRANSITION BOILING (FLOW, NUMERICAL).
HEAT TRANSFER ANALYSES OF LIQUID-HEATED BOILING FLUIDS WITH ATTENTION TO TRANSITION BOILING (FLOW, NUMERICAL).
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Grade effects on thermal-mechanical behavior during the initial solidification of steel
… thermal resistor model was developed to examine heat transfer phenomena within the interfacial gap during continuous casting. Results show that increasing slag layer thickness decreases heat flux across the gap. In addition, decreasing solidification temperature of the mold flux, for a fixed gap …