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Ammonia as an alternative fuel
Radil, Jan ; Kučera, Pavel (referee) ; Píštěk, Václav (advisor)
Replacing current fossil fuels as one of the main causes of the high levels of unwanted particles in the air with greener alternatives is growing in importance every year. In recent years, ammonia has become one of the most frequently investigated alternative fuels with the potential to reduce greenhouse gas emissions in the transport and energy sectors. This bachelor thesis examines the issue of this substance in the context of its use as a fuel. Thesis brings an overview of the current state of research and development of ammonia as an alternative fuel and highlights its potential and challenges in the transition to a low-carbon economy. The reader is introduced to the basic properties of ammonia, production, transport and storage technologies. Comparisons with other fuels, in particular hydrogen, as another alternative fuel are also included. An overview of the possible applications of ammonia as a fuel in current internal combustion engines and fuel cells is also given. This overview is supported by several studies and researches that are currently dealing with this issue. Besides this, the thesis also mentions the most discussed projects for the application of ammonia as a fuel in the automotive and marine industries. In conclusion, all the collected informations are summarized and specific conclusions are drawn in terms of possible future applications of ammonia as a fuel.
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LNG palivo ve vozidlech - porovonání s konvenčním diselovým motorem v nákladním vozidle
KREBS, Petr
This bachelor thesis deals with the comparison of a liquid natural gas (LNG) engine with a diesel engine in the context of freight transport. The aim of the thesis is to analyse the economic, enviromental and technical aspects of both engine types and provide recommendations for potential investments in vehicle fleets and infrastructure. The study analysed the operating costs, greenhouse gas emissions and technical parameters of LNG and diesel engines. It was found that the LNG engine has the potentional to reduce operating costs and greenhouse gases emissions compared to a diesel engine. The results of this work provide a comprehensive view of the issues and use of LNG and diesel as fuels in freight transport and offer recommendations for investment decision making and trategic planning.
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Alternativní paliva v zemědělství
HANEK, Martin
This work mentions the current alternative fuels that are used. It also contains the current state of agricultural technology that is powered by alternative fuels. Possibilities of fuel systems, their method and functions. At the end of the work, there is a consideration of which fuel would be possible and best to develop in the future.
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UTILIZATION OF BIOGAS IN TRANSPORT
Štylárek, Milan ; Zháňal, Lubor (referee) ; Vopařil, Jan (advisor)
Objective of this bachelor thesis is evaluating the possibility of utilization of biogas as an alternative fuel for combustion engines in traffic. Production and distribution of upgraded biogas is described as well as situation of its utilization in the world. This is followed by a comparison of situation in biomethan utilization in Czech republic and Sweden. There are explained barriers to commercial placing and its possible eliminating. In the end the model study of replacement of farm vehicle fleet for CNG vehicles is described.
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Conditions of Waste-made Fuel Combustion including legislative Requirement
Matoušek, Petr ; Pavlas, Martin (referee) ; Novotný, Pavel (advisor)
This bachelor’s thesis describes possibilities of usage of waste-made fuel from point of view of energetic utilisation in industry and power supply. There is a brief overview of energy resources structure, current situation in energy production and in waste management in Czech Republic. Particular types of waste-made fuels are also specified. One of the main parts of this work is fundamental analysis of legislation which governs waste management and alternative fuel usage. In the last part of the thesis the possibility of usage of mechanical-biological treatment as a waste management system is assessed.
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Bioetanol and Drive of Automobile
Smeták, Pavel ; Kloss, Ondřej (referee) ; Kaplan, Zdeněk (advisor)
Content of my diploma thesis focuses on identification of properties and usability of nascent fuel for automotive use. It is a bio-ethanol which can be produced from renewable sources. The heart of this work is to develop methodology of experimental trials in connection with utilization of bio-ethanol E85 as a fuel for vehicle combustion engines. The aim is to perform tests with E85 and BA95 fuels in engine testing room of ÚADI FSI, to compare these trials amongst themselves and to analyze obtained results. Subsequent part of diploma thesis covers overview of general usage of bio-ethanol in road transportation.
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Methanol as an alternative fuel
Balcárek, Ondřej ; Kučera, Pavel (referee) ; Píštěk, Václav (advisor)
This Bachelor thesis is a topic review of problematics of alternative fuel solutions, in particular of methanol and it's production. The aim was to describe properties and possibilities of use of methanol, not only as fuel, but also as a raw material in chemical industry. The information was obtained mainly from English-written sources. Finally, in conclusion part, use and potential of methanol in period of transition to renewable sources is being reviewed.
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Environmental aspects of CNG vehicles
Raiskup, Martin ; Kučera, Pavel (referee) ; Vopařil, Jan (advisor)
This bachelor‘s thesis is focused on matter of environmental aspects of cars powered by CNG. At first natural gas is introduced as a fuel for combustion engines. In the next step pros and cons are evaluated. Then there are described individual combustion systems and components of engine powered by natural gas. The main part of this thesis is focused on ecology. There is mentioned the impact on environment, comparing the impact of natural gas with other conventional fuels. This comparison is realised through the more objective Well to Wheels analysis as well.
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Perspective bus powertrains
Kubík, Jan ; Maršálek, Ondřej (referee) ; Píštěk, Václav (advisor)
The aim of this thesis is to consider possible future development of alternative powertrains with regard to their use in buses. First described are the most promising alternative fuel vehicles, which use an internal combustion engine. The next part is evaluated ways to store energy using electric drives. At the end of the work is mentioned hybrid technology as a combination of previous drives.
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Present state of combustion engine transfer to alternative powertrains
Maršálek, Ondřej ; Píštěk, Václav (referee) ; Novotný, Pavel (advisor)
The current state of change from conventional combustion engines to its alternatives is mapped in this bachelor’s diploma thesis. The basic principles and configurations of conventional combustion engines and its existing alternatives are mentioned. The thesis is also dealing with various kinds of alternative fuels; their summary and evaluation are mentioned as well. In the conclusion of the thesis it is foreshadowed in what way the car industry could proceed in the subsequent years.
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