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Temperature and gas leak sensor for caravan
Indrák, Dominik ; Urbanec, Tomáš (referee) ; Frýza, Tomáš (advisor)
This work deal with develop, manufacture and programming of device (choice suitable components, design and manufacture of printed circuit board, write controlling firmware for MCU), which will measure dangerous gases LPG, temperature and humidity in caravans for the company Cutter Systems spol. s.r.o. The radio frequency 863-870 MHz, eventually asynchronous communication UART is used for communication and sending measurement data. In the next section will be describe the develop of the hardware with a device enclosure and firmware writing.
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Fuels in 21. century
Lébl, Jan ; Svída, David (referee) ; Dundálek, Radim (advisor)
This bachelor’s thesis is intent on introducing the overview of particular types of fuels used at present for ignition and diesel internal combustion engines. Marginally is mentioned the theme of fuels used for fuel cells. Further it deals with the composition of each fuel types and their characteristics and ecological aspects of their use. The ending of the thesis is aimed to formulation of the development trends in fuels and the prospects of each fuel type’s expansion in the future.
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Gaseous fuels for SI engines
Přibyl, Zdeněk ; Czakó, Alexander (referee) ; Štětina, Josef (advisor)
In this bachelor thesis is processed a survey of alternative gaseous fuels for spark-ignition combustion engines. The properties and production, the most important components, infrastructure of service station of specific fuel are stated for these fuels. There are defined the advantages and disadvantages of each fuel. The comparison of CNG and diesel is made. The use of alternative gaseous in the future is outlined at the end of this bachelor thesis.
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Polarization sensitivity of the fibre optics grating sensors
Babieska, Lukáš ; Šifta, Radim (referee) ; Urban, František (advisor)
This diploma thesis deals with the effect of full-length fixation of optical fiber gratings on their polarization dependence. In addition, the effect of primary protection and parameters of optical fiber gratings on their intrinsic polarization dependence was also investigated. The theoretical part of the thesis briefly describes the historical development of optical fiber gratings, the types of optical fiber gratings used and also describes in detail the principles of polarization dependence of optical fiber gratings and the mechanisms of polarization dependence of optical fiber gratings. In the practical part of the thesis, suitable measurement methods for measuring the polarization dependence of optical fiber gratings are proposed. Furthermore, these methods are optimized and used for subsequent measurements of the effect of fixation on the polarization dependence of optical fiber gratings. Many different methods of fixation of the optical fiber gratings were then used to measure the effect of fixation, and the degree of polarization dependence of the optical fiber gratings was evaluated for each of the different fixation methods. The practical part of the thesis is concluded with a detailed summary of the results obtained.
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Alternative Drive of Automobile
Novosád, Jan ; Kloss, Ondřej (referee) ; Kaplan, Zdeněk (advisor)
In this work is processed a survey of perspective alternative drives in motor vehicles. There are main characteristic for each mentioned drive, their advantages and disadvantages and problems associated with their use in vehicles. The work is aimed at gas engines, electro mobiles, hybrid drives and hydrogen, therefore the most likely drives the future.
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Stirling engine 3kW combustion chamber
Matuška, Petr ; Zháňal, Lubor (referee) ; Kaplan, Zdeněk (advisor)
This thesis deals with the construction proposal of the combustion chamber of Stirling engine. The introduction briefly describes the history and practical application of Stirlinova engine today. The following section explains the differences between theoretical and real cycle and the principle of beta Stirling engine modifications. The next section is devoted to the calculation of fuel and air consumption and fuel compared to each other. The proposed design is based not only on the calculation of fuel and air, but also heat transfer between flue gas and preheated air. The last part is devoted to calculating the flow of LPG and flow model of the combustion chamber.
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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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ALTERNATIVE PROPULSION FOR AIRCRAFT OF GENERAL AVIATION CATEGORY
Kaddour, Mirvat ; Hlinka, Jiří (referee) ; Rousek, Miroslav (referee) ; Třetina, Karel (advisor)
Letecká doprava jako všechny ostatní dopravy podílí na produkci emisí skleníkových plynů, což je hlavní důvod změn klimatu. Disertační práce je zaměřena na možnost využití alternativního zdroje energie (paliva, motor) v letectví, aby se snížily emise produkované letadel. Oblast,na která již pracuje je všeobecné letectví, zejména letadel kategorie LSA a VLA. Tři možnosti, alternativní zdroj energie, budou diskutovány. První používá LPG palivo, další je elektrické motory, a poslední přidání katalyzátoru a výfukového systému. U každého z nich bude uvedeno výhody a nevýhody, hlavní změnu pohon letadla nebo výfukového systému a různé výkonnosti letadla v důsledku těchto změn.
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Design of LPG-Powered Portable Generator for Resealable Cartridge
Vevera, Tomáš ; Křenek, Ladislav (referee) ; Sovják, Richard (advisor)
The topic of this bachelors thesis is the design of LPG powered generátor for resealable cartridges. The main goal is to design a lightweight portable power source. This goal has been achieved by using a rotary engine.Adding a power bank into the generátor has reached a wide use potenciál. The final design accomplishes all ergonomic and functional requirements. The final shaping tries to adress the potenciál users.
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