Ziel des Forschungsvorhabens war es, die Einsatzpotentiale mitteltiefer geothermischer Systeme für die sächsischen Ballungsräume Leipzig, Dresden und Chemnitz detailliert zu untersuchen, Kostenvergleiche durchzuführen und Handlungsempfehlungen für potenzielle Projekte abzuleiten. Für jeden Musterstandort wurde eine mitteltiefe Erdwärmesondenanlage vollständig geplant. Mitteltiefe Erdwärmeanlagen können demzufolge eine wirtschaftliche Alternative zur konventionellen Klimatisierung/Temperierung von Gebäuden darstellen. Im vorliegenden Forschungsbericht sind Schritte für Planung, bauliche Umsetzung und Überwachung zusammengefasst. Auch Investitions- und Betriebskosten werden abgeschätzt. Damit können die Ergebnisse des Forschungsvorhabens als Entscheidungshilfe für Behörden, Investoren und Fachplaner herangezogen werden. Redaktionsschluss: 31.08.2020

In diesem Beitrag wird die Effizienz von Walzenverdichtern mit unrunder Bandagegeometrie diskutiert. Diese Technologie hat aufgrund seiner höheren Fahrgeschwindigkeit großes Potential zur Rekultivierung großflächiger Tagebauinnenkippen. Die Verdichtung erfolgt durch einen Stoßprozess, welcher durch die eingetragene Energie und den Impuls beschrieben wird. Diese Größen sind abhängig von der Geometrie der Bandage. Für eine Geometrie wird exemplarisch die Kinematik und die davon abhängigen Zustandsgrößen berechnet. Der Einfluss des Bodens auf die Kinematik der Bandage wird mit einem numerischen Modell analysiert und im Kontext der theoretischen Ergebnisse diskutiert. Es zeigt sich, dass für eine Geometrie die Zuggeschwindigkeit und die statische Masse des Verdichters maßgeblich die eingetragene Energie und den Impuls bestimmen. Mit dem Wissen um die wesentlichen Wirkgrößen ist es möglich Verdichtungsprozessen effizienter zu gestalten, z.B. durch die Wahl des entsprechenden Zuggerätes oder die Applikation zusätzlicher Masse.

The theme of this master thesis is „Energy supply to the site Technická 2“. This thesis is divided into several parts. First we will get in touch with concept of combined heat and power and also with principle of photovoltaic electricity production. We will continue with description of site before and after reconstruction. Then we will follow with analyze the effect of reconstruction on energy consumption. In the end we will make some suggestions for using the local source of heat and electricity in Faculty of mechanical engineering, Brno university of technology. All suggestions will be analyzed from energy and economic point of view.

This diploma thesis deals with the principle of photovoltaic phenomenon and the distribution of photovoltaic systems. It also informs the reader about the possibilities of using the "Green Savings" subsidy within the program "New Green Savings" of the Ministry of the Environment. Last, but not least, it maps the energetic demands of the family house and, on the basis of it, presents the possible design of the photovoltaic system, including the estimation of the economic return.

The paper deals with possibilities of wireless charging and transmission of electric energy using inductive coils. Basic models of air coils are described using CST simulation software. The product consists of a transducer for transmitting coil, two coils with ferromagnetic shield, synchronous rectifier and battery charging circuit. Communication is provided by an 8-bit microcontroller with wireless modules and an ethernet shield for online monitoring. The aim of the thesis is to design a wireless charging station with a power transfer of 40 W with the possibility of online monitoring of the charging state.

The Master's thesis deals with the flow of fuel mixture in the combustion chamber and the influence of its geometry on squish generation caused by the compression lift. The thesis introduces design proposals of the geometry of the combustion chamber focusing on the shape of the squish area and their comparison based on the amount of kinetic energy and the velocity profile obtained using 2-D Squish programme calculations.

The master thesis deals with DSC measurments a calculation of kinetic parameters. In the theoretical part, iron alotropy is briefly described, followed by a description of the DSC analysis itself. The thesis also includes division and derivation of isoconversional methods for calculating the activation energy. In the experimental part, a series of measurments is perfomed on pure iron prepared by Cold Spray method. In the paper the influence of deformation on the Curie temperature of the magnetic transformation in -Fe and transformation > is investigated. The activation energy is calculated for transformation > for different degrees of deformation. The degree of deformation is monitored by channeling contrast.

The theoretical part of the thesis entitled "The Required Energy of a Flying Object to Damage a Windscreen" covers the historical development of glass as a raw material and its further use as a key material for the automotive industry. In the following chapters, the thesis provides an analysis of a windscreen in general including the material composition of various windscreen manufacturers, the distribution according to the accessories used in the windscreens, and the various options of placing a windscreen in a car bodywork. The homologation of a windscreen and the procedure for replacing or repairing a windscreen after a damage is also covered. Lastly, the experimental part of the thesis describes the process of testing the required energy of a flying object to damage a windscreen.

Master’s thesis deals with the design concept of DC/DC convertor usable for a backup source with supercapacitors. The paper describes the theoretical knowledge of supercapacitors technology, principle of basic DC/DC convertors and their use in electrical energy storage systems. The thesis contains a description of the designed backup power system and its properties, which has been measured.

The theme of this diploma thesis is design of recharging station for electrical cars. The result of this thesis is a conceptual design of this station. It summarizes technological, structural, economic, ergonomic and visual aspects with respect to current trends and technical solution.