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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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Oil fractions as a combustion engine fuel
Rejnuš, Miroslav ; Kaplan, Zdeněk (referee) ; Píštěk, Václav (advisor)
This bachelor’s thesis focuses on the mechanisms of oil production, their composition, processing technology and usage in the automotive industry. The theories of oil production are contained in the first part of the thesis together with the composition and description of the distillation process. Following part deals with individual fractions used in automotive industry, such as gasoline and diesel. The last part includes alternative fuels, especially their history, production or composition.
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The Shape Study of a Tractor
Foret, Martin ; Dubjak, Petr (referee) ; Zdařil, Zdeněk (advisor)
Topic: futuristic tractor In my work I focused on the design of heavy tractor plow in the future between 15-20 years. The main aim was to provide a solution that would undertake the issue of adaptation to different working conditions in which the tractor is moving. Adaptivnost was therefore my main goal. Specifically, I focused on balancing the tractor with respect to the driver (cab should ideally be in the middle between the wheels and as low as possible to reduce fluctuations cab drivers are very annoying and negatively affects driving performance on the tractor) . This position is ideal for traveling, but not to work in small spaces and manipulate the front or rear aggregate when the requirements for the best visibility from the cab. Already in my sketches the main idea is evident when the tractor acts as a "compact housing", which change their length and position of the cab as required. For longer rides, such as dragging the machine back on the field, to extend the chassis cab and go down to the lowest position, thus creating an imaginary triangle (between the cabin and wheels), the lower base of the triangle is the longest and therefore the focus is what the lowest. Conversely for handling in a small space tractor chassis to "withdraw" - the smallest turning radius, while the cab driver to go and see better under the wheels, even on the front unit. As for power, and under current trends, it is considered that in the future will be the most efficient diesel-electric propulsion. Compared to existing engines will be smaller Diesel engine running at speed and deliver the ideal energy for the alternator, which converts it into electricity. energy for electric motors that are in each round. It has the advantage as an independent power to each wheel, improving acceleration, etc. As in the past, present and future, and my suggestion is having to deal with the fact that there always will be the engine, its chilling, and various other elements having a size and you can not change too much. With this fact I have worked from the beginning and to seek solutions that would be consistent with my intent. Finally, I chose the principle that the cabin extends hydraulically angle about 45 'forward and change the length distribution of wheel movement is going through the rear chassis rails. Visually, that is very closely linked to functional aspects, it is a clean and easily readable morphology. The whole tractor is distinct lines, which meanders from the front grille, obtahuje cab to her pulled out of the alternator. The aim was to achieve a compact and dynamic shape of the bonnet. The front lights are designed so that their size and location of the suit while riding on public roads, but also to the need for oversizing greater exposure while working in the field. This helps to light in the cab roof and wings, which enable even the correct estimate of the size and contour of the tractor for oncoming cars. For the same reason, get out of shape fenders and turn signals, which can thus be seen from all angles. The tanks are fitted on the sides of the cab chassis with a total 280 l frame cabin has a triangular profile that corresponds with the previously mentioned strong lines on the hood and headlights on the wings. It is designed to be not only comfortable but also getting a driver and still underrated sufficient space for the driver's legs stretch during long rides.
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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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Alternative drives lifting mechanism for pallet truck
Korčián, Michal ; Wilda, Libor (referee) ; Škopán, Miroslav (advisor)
This thesis discusses the design replacement solution current hydraulic actuator stroke for low-lift truck to be completely electric. The aim is to propose the most optimal compensation due to the conservation of existing properties. To use this truck transportation in industries where the emphasis on increased health protection from potential leaks operating fluids.
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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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Fuel for internal combustion engines
Vrbický, Jiří ; Jedelský, Jan (referee) ; Štětina, Josef (advisor)
This thesis is concerned with basic features of fuels for internal consumption engines, especially their influence on thermal efficiency. It also introduces dividing of fuels and their compare in ecologic, economic and technologic side. It is concerned convectional fuels (gasoline, diesel oil) and alternative fuels (nature gas, bottled gas, hydrogen, biodiesel, biogas, methanol and ethanol).
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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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