Examinando por Materia "Trazado de rayos"

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    Ítem
    Diseño de parámetros de adquisición sísmica 3D orientado a la detección de fracturas asistido por modelado sísmico anisótropo
    (Universidad EAFIT, 2013) Vega Delgado, Juan Carlos; Checa Jiménez, Jaime; Mora Bohórquez, Andrés Roberto
    The improving of seismic images with low illumination is possible a trough the new seismic acquisitions planned using seismic modeling and specific objectives to illuminate in areas where it has “low illumination” -- This work is focused to development a theory to improve the illumination of the subsurface, based in the ray tracing and it having into account the anisotropy effect that both, overburden and geological unit can to print to seismic wave registered -- In the first chapters, we try to rebuild the anisotropic effect increasingly complex analysis to have a geological model representative of a prospective field, which is affected by intense fracturing and this affects the quality of the currently acquired seismic, so we have created a seismic model with HTI anisotropy to evaluate the possibility of improving the quality of a new seismic design that can be added to the existing seismic through a processing flow -- Results show that to use a ray tracer methodology in “ghost zones”, is possible to find a new geometry in surface that really adds the illumination in Problem areas with interest in fracture reservoirs
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    Ítem
    Influencing the performance of a Building Integrated low-Concentration Photovoltaic (BICPV) system by adapting an Anti-Reflective Coating (ARC) with a pyramidal texture
    (Universidad EAFIT, 2021) Bernal del Río, Santiago; Osorio Gómez, Gilberto
    The generation of electric energy from photovoltaic solar energy brings a new opportunity to reduce generation costs, in addition to reducing the emission of greenhouse gases. This type of generation has positioned itself as the most important for renewable energies, especially because of the impact it has had on generation on an industrial scale. However, in the residential sector, different strategies are proposed within the framework of the best use of the available area in order to reduce costs, as is the case of low-concentration photovoltaic concentration systems. This document proposes the development of an Anti-Reflective Coating (ARC) with a pyramidal texture in two dimensions for a V-Trough type photovoltaic concentrator, specifically for a Building Integrated low-Concentration Photovoltaic (BICPV), with the aim of increasing the light capture of these systems due to the loss caused by the rays coming from incidence angles different from the normal surface. For this, a methodology is executed where the concentrator is designed, the material for the Anti-Reflective Coating is determined, the design of the geometry of the texture, and, later, simulations are carried out by means of ray tracing, and experimental validation, where finally data is taken in real time of the generation of the CPV with the texture, and, it is checked how the application of this texture affects in a positive way the generation of the photovoltaic system, with increases of more than 3% in the normalized efficiency.