National Repository of Grey Literature 93 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
Environmental and Economic Aspects by House Heating
Ondruch, Jiří ; Brázdil, Marian (referee) ; Lisý, Martin (advisor)
Bachelor thesis deals with all possible methods of heating, which can be used for heating family house. The thesis emphasizes mostly on methods new, progressive and environmentally friendly. In the last part of this thesis, the chosen methods are demonstrated on model house.
Heat recovery
Kovaříček, Jakub ; Toman, Filip (referee) ; Baláš, Marek (advisor)
This work deals with the design of a heat exchanger for the use of the heat of the gas generated during the gasification of biomass. The gas flowing in the tubular space of the exchanger will be cooled to the required temperature by the air flowing in the intermediate tube space. It is therefore a gas-air bundle exchanger, the outlet air temperature of which is unknown. The introductory part includes an overview of possible designs of exchangers according to several parameters, requirements for exchangers and their functions. The second part deals with the design of the exchanger itself, starting with the determination of physical and other properties of working media, through geometric parameters, the balance of the exchanger and finally the determination of pressure losses of the exchanger.
Vehicle Hydropneumatic Unit
Koudelka, Roman ; Hejtmánek, Petr (referee) ; Blaťák, Ondřej (advisor)
This diploma thesis, following the bachelor's thesis, is devoted to the gas-liquid unit of a vehicle, as the central element of hydropneumatic suspension. The aim is to dimension and construct this component and integrate it together with other elements into a complex suspension system. Based on possible forms listed in the research section, regarding to current development trends, the form of the unit is chosen. The practical part begins with simulations comparing a hydropneumatic with a conventional suspension system. After solving this issue, it is possible to proceed to the dimensioning of the basic parameters of the unit and then to its construction, respecting the relevant strength calculations. The last step is to build a conceptual design of the whole hydropneumatic suspension system.
Import of Aggregate Invoices and Deposits in the SAP IS-U System
Hradečný, Tomáš ; Rychlý, Marek (referee) ; Bartík, Vladimír (advisor)
This master's thesis desribes the import process of aggregate invoices and prepayments into the gas trader's SAP IS-U information system. It explains some of the essential SAP terms and contains an analysis of final product requirements. Additionally, it concerns the implementation of the designed solution itself and describes achieved results. In conclusion, it mentions possible extensions.
Renewable energy sources: are they always contributive to the environment?
Pelz, Václav ; Jašková, Jana (referee) ; Baumgartnerová, Alena (advisor)
Semestrální práce se zabývá obnovitelnými zdroji energie a jejich využitím. Snaží se přiblížit i laickému čtenáři základní principy fungování obnovitelných i neobnovitelných zdrojů a výrobu elektřiny s tím spojenou. Snaží se zároveň poukázat na mnoho otázek a problémů s obnovitelnými zdroji se kterými se v dnešní době potkáváme, jelikož poptávka po elektřině stále roste, a přírodní neobnovitelné zdroje jako je ropa či uhlí pomalu ale jistě mizí. Nastiňuje základní problémy s obnovitelnými zdroji a uvádí klady a zápory jejich využití i do budoucna.
Study of gas influence on chemical processes initiated by electrical discharge in liquids
Dürrová, Anastasia ; Krčma, František (referee) ; Kozáková, Zdenka (advisor)
This thesis in the theoretical part focuses on the gas influence on chemical processes initiated by electrical discharge in liquids. This part described the possible diagnostic methods of reactive particles whitch are produced in water solutions after plasma treatment. The influence of different experimental conditions, such as the influence of gas, effect of voltage polarity, effect of electrolyte of hydrogen peroxide formation were studied. The comparison of selected two gases with different property, argon and oxygen, were realized. The effect of pH in phosphate solution was studied. This solutions are able to maintain relatively stable pH during the experiment and due to this property phosphates are very perspektive for medical applications.
A microreactor study for gas-phase catalytic oxidation, stage 6 and 7
Stavárek, Petr ; Jiřičný, Vladimír ; Hejda, Stanislav
Report describes the adaptation of the experimental apparatus for the installation of the microreactor for the second reaction step for the gas-phase catalytic oxidation.
A microreactor study for gas-phase catalytic oxidation, stage 5.1 and 5.2
Stavárek, Petr ; Jiřičný, Vladimír ; Hejda, Stanislav
Report focuses on experimental tests of a microreactor applied to the gas-phase catalytic oxidation under different operating conditions.

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