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Use of rare oils in cosmetics
Pilipenco, Alina ; Szotkowski, Martin (referee) ; Němcová, Andrea (advisor)
The purpose of this bachelor thesis was to research rare oils. The oils from selected plants (poppy, cannabis, thistle) is characterized by the content of active phenolic compounds, fatty acid composition, antioxidant and antimicrobial effects. First part of the thesis is a literary research on a given topic, which contains the following parts: the universal chemical composition of vegetable oils, the characteristics and effects of selected oils and the ways of their obtaining for cosmetic purposes. The experimental part is focused primarily on the basic analysis of selected oil components and the preparation of the shower oil based on the obtained results. In conclusion are presented an overview of all the properties of selected oils, their practical use and assessment of their application in cosmetics.
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Heat exchanger flu gas - water/stem for tri-generation unit based on stroke engine
Hadraba, Jiří ; Baláš, Marek (referee) ; Pospíšil, Jiří (advisor)
This diploma thesis with resolution of technical and partially economical project of combustion exchanger of cogeneration unit for application of absorbing cooling. Considered types of exchangers are: combustions/water and combustions/steam. The other capitols include the description of cogeneration, trigeneration and other possible resolutions of intersections among mentioned systems; general overview of plant oils used as a fuel in energetics, particularly in compression engines in technology of combined production of electricity and heat.
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Utilization of Waste Vegetable Oils as an Alternative Fuel for Diesel Combustion Engines
Michna, Lukáš ; Novotný, Pavel (referee) ; Stodola, Jiří (advisor)
In the introduction this thesis brings a short summary of the energy, environmental and economical balance, related to the production and use of conventional fuels for diesel engines, and compares them with possibility of using recycled cooking vegetable oils as a fuel. The main part focuses on the laboratory analysis of major physical and chemical properties of this alternative fuel and on their comparison to diesel fuel, especially according to ČSN EN 590 norm. In conclusion there is a proposal of diesel vehicle modification to be propelled with waste vegetable oils.
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Vegetable oil as a fuel for a diesel engine
Kuběna, Pavel ; Kloss, Ondřej (referee) ; Kaplan, Zdeněk (advisor)
This thesis offers an opportunity to get closely acquainted with ignition engines running on alternative fuels. At the beginning of this work the reader is offered a wide variety of alternative fuels since born automotive industry, their basic information, features, use, and technical issues of each fuel. In the following part of this thesis, the author deals only with vegetable oil and its potential use as a fuel in an ignition internal combustion engine. It focuses on the specific conversion vehicles, their complexity, advantages and disadvantages, the overall economy of operation and risks of using vegetable oil instead of conventional diesel fuel. There is also documented performance characteristics and ecological balance of a particular target vehicle.
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Vegetable Oils as Alternative Fuel
Ježek, Přemysl ; Svída, David (referee) ; Dundálek, Radim (advisor)
Presented thesis applies to possible solutions of the reduction of environmental pollution - use vegetable oil as diesel engine fuel. Thesis aims to describe important terms of this topic and to name facts linked with vegetable oils in use. In the end it tries to make a prognosis based on gathered information.
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