|
Small scale photovoltaic system
Vaľočík, Jan ; Škvařil, Jan (referee) ; Pospíšil, Jiří (advisor)
The aim of this work is utilization of solar energy for electrical energy production focusing on photovoltaics. First, the principle, function and structure of photovoltaic cells is described. Then the current types of cells are introduced, followed by possibilities on how to increase the production of electrical energy from photovoltaic modules. Subsequently the connection methods between the photovoltaic systems and the network are discussed. The thesis is concluded by a design of a small scale photovoltaic system for a family house including an economic evaluation.
|
|
Biogas composition
Čekanová, Adéla ; Pěček, Jan (referee) ; Beňo, Zdeněk (advisor)
Content of the submitted bachelor thesis is a description of biogas chemical composition with following analysis of each unit, especially majority units, with use of different gas analysis methods. Main emphasis is set on biogas units which have undesirable effects while using it as energy source and on possibilities of removing them using set technologies. In larger scale the bachelor thesis is concerned with teoretical possibilities of removing sulphur from biogas and following methods used in work experience.
|
|
Construction design of instructional models at the hydraulic laboratory circuit
Havlát, Michal ; Kříž,, Lubomír (referee) ; Žoužela, Michal (advisor)
The Higher vocational school and The Secondary School of civil engineering in Vysoké Mýto is going to build a hydraulic laboratory circuit which will be used especially for teaching students of hydraulics and hydrology. Laboratory will include several scaled down models which simulate especially hydraulic tasks with open-channel flow or flow in pipes. It specifically means simulation of spillway, flow-measuring flumes, culvert flow and mechanic energy loss simulation per length of pipe and at singularity flow. This thesis is focused on hydraulics of the simulated tasks, project documentation and hydraulic calculations preparing for all designed models. The documentation also includes laboratory equipment - instrument carrier and service stairs. This thesis includes theoretical text part, technical report, hydraulic calculations and drawing part.
|
|
Summary and analysis of the acquis communautaire and the domestic law in the area of renewable energy sources
Divoký, Zdeněk ; Štěpánek, Petr (advisor) ; Černý, Pavel (referee)
The goal of this diploma's thesis is to analyze legal regulation of renewable energy sources in a context of environmental and energy law, up to the scale of subordinate legislation. The work presents summary analysis of the past and present developments in the energy law in connection to the actual problems in this field. This work gives comprehensive overlook of the legal regulation including legal regulation of the subsidies and usage of the renewable sources of energy. The overlook of recent history describes the original regulation by law regulation, as well as changes in the legal regulation connected to the changing cost of renewable energy. The first chapter gives the definition of terms, the second chapter is about European law in the area of the renewable energy sources. The third chapter focuses on the domestic legal regulation of Czech Republic. The fourth chapter brings analysis of renewable energy sources concerning other Community policies like energy security and environmental law and the fifth chapter looks into present tendency in the legislation sphere in context with present issues.
|
|
Mechanisms of species-energy relationships across spatial scales
Šímová, Irena ; Storch, David (advisor) ; Kühn, Ingolf (referee) ; Lepš, Jan (referee)
Explaining spatial variation of species richness is a central goal of ecology. Recently it has been shown that the number of species is related to energy availability. There are two major categories of hypotheses concerning possible processes behind this relationship: i) hypotheses based on an assumption that the total number of species at given site is limited by the total amount of resources, and ii) hypotheses assuming that evolutionary and historical processes are mainly responsible for the current species richness patterns. We tested possible explanations concerning both resource limitation and evolutionary history using datasets of herbaceous plants, trees and dragonflies, varying in their scale and extent. Within local communities of herbaceous plants, the number of species was influenced by the total amount of available resources (productivity), through its effect on the total number of individuals and the intensity of interspecific competition. However, the role of resource limitation was not strong, and the form of the resulting species-productivity relationship was affected by habitat heterogeneity acting independently of productivity. Historical processes affecting the size of species pool appeared also as important at this scale (Chapter 1). Within local communities of trees...
|
|
Wavelet transform properties
Koula, Ivan
Multidimensional time-scale representations of signals are images of changes in time of short time sub band energy and thus play an important role when they are analyzed and processed. The properties depend on the transformation algorithm used, and they differ not only in the resolution of changes in the time and the scale domain but also in the computation complexity during the realization.
|
|
Russia's role in the development of the 21st century gas sector: economic and geopolitical perspective
Akhmatulin, Artem ; Žídková, Markéta (advisor) ; Romancov, Michael (referee)
This thesis focuses on the analysis of contemporary trends in the global gas sector by highlighting major milestones in the relationship between energy 'producer' and 'consumer' states, and assessing eventual development of the gas sector with a special emphasis on Transnational Corporations. The research applies a SWOT analysis (the assessment of strengths, weaknesses, opportunities and threats) of the Russian gas sector in order to promote a greater understanding of recent trends in the country's gas market, analyze its impact on the global gas industry, and provide an assessment for the future of the country's energy sector. In this regard, the study argues that the Russian gas sector is determined by the large scale of the country's territory, the dominance of gas in the fuel balance of the country, unstable economy of the gas industry, and emerging trends of the scarcity of gas. Based on the analysis of opportunities and challenges of creating a 'gas OPEC', the study concludes that there are prospects for a creation of such an organization in the long-run, due to growing gas demand. However, the thesis argues that in order for Russia to become a potential member of such an organization and promote further development of the country's gas sector, there is a need to diversify its gas supplies,...
|
|
Exploiting of geothermal energy in ZOO in Ústí nad Labem
Knězů, Kristýna ; Dvořák, Antonín (advisor) ; Hadrabová, Alena (referee)
This thesis deals with alternative Energy sources. Firstly it describes their general properties, legislative framework and their use in the Czech Republic. In detail it describes use of geothermal energy and its exploitation in a large scale project put into practice in ZOO in Ústí nad Labem. The last part of the thesis focuses on success of the investment in economical terms.
|
|
Proton-Proton Interactions at the ATLAS Experiment at the LHC Accelerator
Přibyl, Lukáš ; Němeček, Stanislav (advisor) ; Soustružník, Karel (referee) ; Kupčo, Alexander (referee)
In this thesis the potential of the ATLAS detector to exclude or discover quark compositeness is studied in detail. There were four dierent sensitive analysis methods developed for this purpose. These methods use a detailed information about inclusive dijet pT-spectrum or dijet angular distribution and two of them use Bayesian technique (as is usual in similar analyses at Tevatron). For all four methods a larger number of systematic errors was taken into account and their inuence was studied in detail too. It is also shown, that the early data exclusion limit on quark compositeness reachable by the ATLAS experiment is + LL = 10.3 TeV at 95% C.L with 100 pb 1 of collision data of a sucient quality. This limit is considerably higher than the current limit known from Tevatron: + LL = 2.7 TeV at 95% C.L. The highest exclusion limit on quark compositeness with expected total amount of data to be collected by the ATLAS experiment is above 22 TeV, assuming 3% jet energy scale uncertainty.
|
|
ADAPTATION OF FUEL ANALYTICS ON BIOMASS USED FOR ENERGY TRANSFORMATIONS
MAROUŠEK, Josef
For 2010 the European Union has a goal to increase the share of renewable energyware to 12%. For 2020 the goal is 20%. One of visions to reach this is to raise the share of solid biofuels. Politicans all over ideologycal spectrum collectively propagate, that farming and waste management sector industry has developed ways to produce solid recovered fuels with reliable qualities, which are used successfully regarding economic and environmental aspects. One of prerequisites to reach this will be to achieve the standardization of solid biofuels. This leads to a need for flexible market, which is attainable only by common understanding concerning terminology, sampling and test methods. European energetically non-intensive industries and settlements are looking for ecologically friendly alternative fuels in order to save fossil fuels. And by doing so, enforce the development of fitting technical norms to facilitate the meeting of offer and demand for the product. Pressed biofuels like pellets are today playing the key role for the small house market as well as for large scale coal substitution in local power plants. The thesis is a part of scientific contemplation MSM 06/2/4a solved by professors S.Kužel and L.Kolář and is trying to answer the question: ``Is combustion of solid biofuels ecologically friendly?{\crqq}
|
guest ::
