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Hydrogen production from renewable sources
Balko, Michal ; Kropáč, Jiří (referee) ; Houdková, Lucie (advisor)
The goal of this bachelor's thesis is to make a summary of actual hydrogen production possibilities both from fossil fuels and from renewable sources. First part deals with production by steam reforming of natural gas and water electrolysis. Next comes the production from biomass by photofermentation and fermentation. Attention is paid especially to input materials and process conditions. In the end chosen processes of production are compared by their energy intensity found out by simplified calculation.
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Hydrogen fuels
Umlauf, Martin ; Bébar, Ladislav (referee) ; Jícha, Jaroslav (advisor)
Paper presents a basic review and comparison of energy-conservation made of renewable sources. Principal question of paper concerns evaluation of hydrogen-use made of electrolysis of water. First part of the thesis focuses on the production of energy from renewable sources and the possibility of energy-accumulation. The next section describes methods of hydrogen production and utilization of hydrogen as a fuel for combustion engines. Attention is paid to various aspects dealing with construction of combustion engines using hydrogen. Final part of the study presents comparison between combustion engines using known sorts of fuels as to their pollution and emission-level. Next comparison deals with economic cost per kilometer, when different sort of fuels are taken into account. Conclusion concerns approximate calculation of the production of hydrogen from water by electrolysis using photovoltaic power plants.
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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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Production and storage of hydrogen
Krátký, Štěpán ; Lízal, František (referee) ; Hejčík, Jiří (advisor)
The goal of this bachelor’s thesis is to make an overview of current technologies used to produce and store hydrogen. First part deals with production technologies. Hydrogen production is divided into three categories: production of hydrogen from fossil fuels, from water and from BIO sources. Second part is dedicated to storage technologies and contains the most known methods of hydrogen storage.
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Study of the possibilities of hydrogen recovery from generator gas by steam reforming
Imrichová, Anna ; Milčák, Pavel (referee) ; Baláš, Marek (advisor)
This thesis studies the possibility of generator gas being used as a source of hydrogen with the help of steam reforming. In the first part, gasification, as a method of producing generator gas, and steam reforming, including studies devoted to the production of hydrogen by similar methods, are researched. Then following experimental part is aimed to verify the assumed influence of selected parameters on the increase of hydrogen in the gas by steam reforming. These parameters are: the degree of calcination of dolomite, as the used catalyst, and its amount, the temperature in the catalytic filter and the amount of steam during gasification. The results are graphically processed and confirm the expected increase of hydrogen depending on the temperature and degree of calcination. At the same time, there are no big changes using different amounts of used catalyst and steam.
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Hydrogen fuels
Umlauf, Martin ; Bébar, Ladislav (referee) ; Jícha, Jaroslav (advisor)
Paper presents a basic review and comparison of energy-conservation made of renewable sources. Principal question of paper concerns evaluation of hydrogen-use made of electrolysis of water. First part of the thesis focuses on the production of energy from renewable sources and the possibility of energy-accumulation. The next section describes methods of hydrogen production and utilization of hydrogen as a fuel for combustion engines. Attention is paid to various aspects dealing with construction of combustion engines using hydrogen. Final part of the study presents comparison between combustion engines using known sorts of fuels as to their pollution and emission-level. Next comparison deals with economic cost per kilometer, when different sort of fuels are taken into account. Conclusion concerns approximate calculation of the production of hydrogen from water by electrolysis using photovoltaic power plants.
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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.
|
|
|
Production and storage of hydrogen
Krátký, Štěpán ; Lízal, František (referee) ; Hejčík, Jiří (advisor)
The goal of this bachelor’s thesis is to make an overview of current technologies used to produce and store hydrogen. First part deals with production technologies. Hydrogen production is divided into three categories: production of hydrogen from fossil fuels, from water and from BIO sources. Second part is dedicated to storage technologies and contains the most known methods of hydrogen storage.
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|
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Hydrogen production from renewable sources
Balko, Michal ; Kropáč, Jiří (referee) ; Houdková, Lucie (advisor)
The goal of this bachelor's thesis is to make a summary of actual hydrogen production possibilities both from fossil fuels and from renewable sources. First part deals with production by steam reforming of natural gas and water electrolysis. Next comes the production from biomass by photofermentation and fermentation. Attention is paid especially to input materials and process conditions. In the end chosen processes of production are compared by their energy intensity found out by simplified calculation.
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