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The field of nanoparticle preparation is nowadays rapidly evolving. Most of the ap- proaches can be classified as wet chemistry techniques. On the other hand, gas aggrega- tion sources offer an alternative, purely physical approach of how to fabricate nanoparti- cles in a controlled and reproducible manner. Many kinds of nanoparticles were already produced in this way, e.g. metallic, metal oxides or plasma polymer nanoparticles. Moreover, as it was demonstrated in recent studies, even heterogeneous nanoparticles by combining more types of materials may be produced by such sources. Among them, an increasing interest is devoted to the metal/plasma polymer nanoparticles. Concerning the production of metal/plasma polymers nanoparticles, the majority of so far published studies focused on the nanoparticles with metallic cores surrounded by a plasma polymer overcoat. Because of this, we decided to investigate a novel two- step deposition procedure for the production of metal/plasma polymer nanoparticles with inverse structure, i.e. nanoparticles with plasma polymer cores covered by metal. This method is based on the gas aggregation technique for plasma polymer nanoparticle fabrication (C:H:N:O in this study) followed by subsequent in-flight coating by sputtered metal (silver, copper and titanium). The production...

Diploma thesis deal with design and economic valorize heating system for heating family house classical gas boiler and condensing gas boiler. Diploma thesis includes design these two heating systems, inclusive graphical documentation mentioned enclosed. Further thesis includes calculation consumption natural gas in both variants heating systems with pricing natural gas spent behind heating period and investment charge upon this heating system and result is economics comparison these two heating systems.

The target of this diploma thesis is design of cogeneration unit with following requirements: • Installation of new unit instead of the old and used up one. • Electric energy supply within Supportive service – fast starts • Greening (replacement of coal with natural gas) At the beginning I deal with the current state of old unit. In the next part there is the design of new technological unit, which consists of design of boilers, gas engines, steam turbines. Final phase of the thesis includes economical analysis focused on setting of financial return.

The current trends in sources of heat designed for heating the houses are influenced by the consequences, that interfere in the decision making process from the professional point of view (the advisory activity by the expert) as well as from non-professional point of view (the owner or the operator of the house, usually represented by one person). The aim of this thesis is to find the optimal method, that is supposed to secure disinterested decision making, that will be minimally influenced by the subjective experience, customs and also by the advice given by the friends of the decision maker. The thesis concerns the town hall, that will be insulated in the future. Therefore it is eligible to propose to change the heating source, as the current one will be redundant, once the insulation is done. Using the old heating system would be uneconomical. The current heating source is the gas boiler JUNKERS CERAPUR. The energy (heat) loss of the town hall building will be lowered by 50 % once the insulation is done.

The aim of this work is to prepare heterogeneous nanoparticles which means nanoparticles composed of more than one material. Our approach lies in in-flight modification of primary nanoparticles in the tubular sputtering system. Our tubular system contains copper target and we deposit copper onto the flying primary nanoparticles by magnetron sputtering. The main advantage of this approach is independence of fabrication of primary nanoparticles and their subsequent modification. At first we optimized fabrication of nanoparticles by the gas aggregation source on behalf of the next modification. We also characterized conditions in the tubular sputtering system. We found process in the tubular system to be very complex and sensitive to the changes of the operational parameters. There is a strong interaction between flying nanoparticles and the discharge in the tubular system. Due to this interaction the nanoparticles are trapped in the plasma and the deposition rate is pulsing. The result of this work is modification of nickel and silver nanoparticles, preparation of heterogeneous nanoparticles Ni/Cu and Ag/Cu. These heterogeneous nanoparticles vary in composition, shape and size according to the conditions in the tubular system. We also successfully prepared Janus nanoparticles which are interesting for their...

The aim of this diploma thesis is to design a gas boiler for blast furnace gas combustion. At the beginning is performed stoichiometry of the used fuel to determine the optimal amount of combustion air and the actual amount of flue gas. Subsequently is determined the overall efficiency, together with heat and steam power of the boiler. The main part of the thesis is focused on the design of the combustion chamber and the dimensioning of heat exchange surfaces. At the end of the thesis are performed hydraulic and aerodynamic calculations to determine the pressure loss on the side of the working medium and flue gas. Drawing documentation can be found in attachments.

The aim of this thesis is a draft of a gas steam boiler with steam output of 200 t/h. The first part of the paper provides stoichiometric calculations, then there are calculations of the dew point, boiler efficiency and the amount of gas. After that, calculations and a draft of the combustion chamber are carried out and then heat balances are drafted. In the following text, geometric properties of individual heat exchanging surfaces are drafted. At the end, there are control calculations. This thesis contains a blueprint of the gas steam boiler.

The diploma thesis deals with design of a suitable heat source for heating and hot water. There are dealt with operational costs of different types of heat sources, which are compared with one another. The next part is the implementation of specific proposal of the heat source - heat pump ground/water with deep wells and measuring system. The last part describes measuring several operating modes of the heat pump.