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Hydrogen fuels
Tyagunova, Victoria ; Bébar, Ladislav (referee) ; Jícha, Jaroslav (advisor)
This thesis presents a basic review of production and use of hydrogen fuels. The main focus of this paper is the use of hydrogen in industry and power engineering. The first part concerns various industrial production technologies. The next section is dedicated to the description of hydrogen use for energy conservation, fuel cells, power plants and combustion engines. it includes the comparison of hydrogen and classic fuels. The final part focuses on the economy and costs of hydrogen production and use. This paper will evaluate hydrogen as a potencial fuel for future and will estimate it’s advantages and disadvantages in comparison with conventional fuels.
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A study of liquids behavior in rotating vessel
Tuhý, Marek ; Šedivý, Dominik (referee) ; Fialová, Simona (advisor)
The presented bachelor thesis deals with the study of liquids behaviour in rotating vessel. The aims of the thesis are theoretical analysis and recherche of the behaviour of liquids in a rotating vessel, design and construction of an experiment, its implementation and evaluation. The hydrostatic knowledge was found in the theoretical part, the practical part was placed in the laboratory of fluid engineering on the assembled experimental track.
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The flow analysis inside semi-hermetic reciprocating compressor
Bouchal, Patrik ; Hejčík, Jiří (referee) ; Tuhovčák, Ján (advisor)
The topic of this diploma thesis is CFD simulation of flow inside CO2 semi-hermetic reciprocating compressor Stream manufactured by Emerson. The goal of this thesis is to analyze critical points inside the compressor with regard to excessive entrainment of oil by flowing refrigerant by means of CFD simulation using ANSYS CFX. Simulation for both single-phase and two-phase flow is part of the thesis and results from them are analysed.
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Renewable energy sources: are they always contributive to the environment?
Pelz, Václav ; Jašková, Jana (referee) ; Baumgartnerová, Alena (advisor)
Semestrální práce se zabývá obnovitelnými zdroji energie a jejich využitím. Snaží se přiblížit i laickému čtenáři základní principy fungování obnovitelných i neobnovitelných zdrojů a výrobu elektřiny s tím spojenou. Snaží se zároveň poukázat na mnoho otázek a problémů s obnovitelnými zdroji se kterými se v dnešní době potkáváme, jelikož poptávka po elektřině stále roste, a přírodní neobnovitelné zdroje jako je ropa či uhlí pomalu ale jistě mizí. Nastiňuje základní problémy s obnovitelnými zdroji a uvádí klady a zápory jejich využití i do budoucna.
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Vliv vybraných proměnných na trh s kryptoměnami
Doležal, Daniel
Doležal, D. The impact of selected variables on the cryptocurrency market. Diploma thesis. Brno: Mendel University, 2023. The thesis deals with the selection of individual factors and the subsequent identification of whether or not these factors have an influence on the development of the price of Bitcoin. The variables are selected based on scientific articles that deal with this issue and subsequently are subjected to regression analysis. The analysis itself focuses on the period from the last Bitcoin halving, i.e. on those variables that could have potentially influenced the development of the price of our asset in the last approximately three years. The focus is on the general influence of explanatory variables that influence the price of Bitcoin, but also on a comparison of the significance and nature of the influence of individual determinants on the second largest cryptocurrency by market capitalization, Ethereum. The results of the work are critically evaluated with scientific articles and recommendations for investors are made based on the information obtained.
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Vliv pozornosti investora na trh s ropou
Topolnikova, Anna
Topolnikova, A. The influence of investor attention on the oil market. Bachelor thesis. Brno: Mendel University in Brno, 2023. The aim of this bachelor thesis is to identify the impact of selected indicators on the profitability of oil futures contracts and the profitability of shares of companies operating in the field of oil production. The theoretical part of the thesis describes the possibilities of investing in oil, presents the most important methods of stock valuation and determinants affecting oil prices. A separate chapter is devoted to investor sentiment. Where methods of measuring sentiment and expressing attention are presented with the help of searching for a certain term in Google Trends. The practical part is devoted to the relationship between the performance of ExxonMobil stock, WTI crude oil futures contracts and other selected indicators through correlation and regression analysis. Based on the information obtained from the theoretical and practical parts of the work, recommendations for investors are formulated.
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Ropné havárie: vliv na životní prostředí a vývoj environmentální politiky
Pačovský, Jakub
This bachelor thesis deals primarily with oil accidents and the environmental policy associated with them. The aim of the thesis is to analyze oil accidents in terms of causes, consequences and environmental policies. The focus is on policies that try to minimize oil pollution. The partial aim is to analyze and compare these aspects on two specific accidents in the USA: Exxon Valdez and Deepwater Horizon. The first part of the thesis focuses on a general description of the oil industry, to put the issue into context. Next, the thesis comprehensively analyzes oil accidents and established global environmental policies that combat oil pollution. In the second part, the specific aspects are compared within the two mentioned accidents. In these specific examples, the impact of environmental policies is also assessed, according to the evolution of the amount of oil pollution over individual years. In the last part of the paper, the established facts are evaluated, when environmental policies prove to be crucial for combating oil accidents.
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