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Complex simulator of the solar irradiance
Petrov, Roman ; Radil, Lukáš (referee) ; Ptáček, Michal (advisor)
This work consists of a theoretical part, which deals with various ways of mathematical equations to model the thermal photovoltaic cell. Thermal modeling describes a photovoltaic cell temperature, and heat capacity of the photovoltaic cell. This temperature is usually function or directly dependent on the intensity of solar radiation. In the theoretical section explains several ways to model thermal photovoltaic cells. Thermal modeling is outside the scope of this paper, it is mainly the modeling of solar irradiance, which is discussed in detail in the next section, and then in the practical part. The practical part is concerned with constructing mathematical equations that describe the intensity of solar radiation. These mathematical equations are then used to build a mathematical model. The actual mathematical model is created in a computer program PSCAD, wherein the main input parameter of the intensity of solar radiation. This model can simulate the course of the sun, for which it is necessary to set various parameters such as: region, time of day, the seasons, but also has a function that is essential for modeling of solar radiation intensity, and it is cloudiness. Cloud is fundamentally changing the size of the radiation intensity, and its direct constituents. After compiling a complex simulator of solar irradiance, this simulator is tested for its validation in form of doing couple of graphical runs of intensity of solar radiation for various locations on Earth, which are time dependent.
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The Origin of Compositional and Textural Zoning of Shallow-Level Granitoid Plutons
Trubač, Jakub ; Janoušek, Vojtěch (advisor) ; Broska, Igor (referee) ; Siebel, Wolfgang (referee)
The principal goal of this Ph.D. Thesis is to contribute to the research on formation of compo- sitional and textural zoning in shallow-level plutons. Processes responsible for emplacement of individual plutons/pulses and the origin of compositional zoning in are addressed in a great detail, from the pluton-scale down to the micro-scale. The main emphasis in the more focused part of this text is on a combination of various quanti- tative data sets from two well-selected plutons (the Říčany Pluton in the Central Bohemian Plu- tonic Complex and the Melechov Pluton in the Moldanubian Batholith). These detailed studies are supported by further research on the Štěnovice, Čistá and Ševětín plutons. In this way we cover the evolution of Variscan magmatism in the heart of Bohemian Massif in its entirety, from Late Devonian till Permian. The thesis is based on combining field and structural studies (including the anisotropy of mag- netic susceptibility, AMS), textural analysis, petrological, geochronological and geochemical methods with geophysical investigations. Mathematical approaches have been designed and applied to the interpretation of geochemical data, with potential applications to other igneous systems. I strongly believe that only such comprehensive studies on well-selected case examples have a...
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Complex simulator of the solar irradiance
Petrov, Roman ; Radil, Lukáš (referee) ; Ptáček, Michal (advisor)
This work consists of a theoretical part, which deals with various ways of mathematical equations to model the thermal photovoltaic cell. Thermal modeling describes a photovoltaic cell temperature, and heat capacity of the photovoltaic cell. This temperature is usually function or directly dependent on the intensity of solar radiation. In the theoretical section explains several ways to model thermal photovoltaic cells. Thermal modeling is outside the scope of this paper, it is mainly the modeling of solar irradiance, which is discussed in detail in the next section, and then in the practical part. The practical part is concerned with constructing mathematical equations that describe the intensity of solar radiation. These mathematical equations are then used to build a mathematical model. The actual mathematical model is created in a computer program PSCAD, wherein the main input parameter of the intensity of solar radiation. This model can simulate the course of the sun, for which it is necessary to set various parameters such as: region, time of day, the seasons, but also has a function that is essential for modeling of solar radiation intensity, and it is cloudiness. Cloud is fundamentally changing the size of the radiation intensity, and its direct constituents. After compiling a complex simulator of solar irradiance, this simulator is tested for its validation in form of doing couple of graphical runs of intensity of solar radiation for various locations on Earth, which are time dependent.
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