This master’s thesis deals with building the most modern injection systém Common-Rail for four-cylinder tractor diesel engine. The following application is a conversion from a obsolete system with inline injection pumps. Because the costs for this conversion must be minimized, that it is effort of minimal intervention in engine design. First this master’s thesis focuses on the theory of injection systems of diesel engines and related things and then the thesis shows the design conversion supported analytical calculations and FEM analysis of newly designed components.

This diploma thesis deals with the storage tanks for petroleum products. The introductory part is devoted to the distribution of the storage tanks, associated standards and maintenance of tanks. Another part goes about the analysis of real case of a tank collapse. There was created a 3D model of the collapsed tank according to the measured values in the tank. It was created a tank shell model by drawing documentation and analysis of the results of the accident investigation using the finite element method (FEM) by program ANSYS. Calculation was performed on the buckling resistance of the structure according to ČSN EN 1993-1-6 and its comparison with the results of FEM analysis in ANSYS. The aim of the study was to find the critical condition of the structure and determination of the critical internal underpressure and overpressure. At the end there were determined measures for safe operation and settings of the valve members.

The subject of this dissertation is the assessment and optimization of water distribution in the group water supply. The water supply networks are located in the Water Association of Babicko, former district of Uherské Hradiště, region of Zlín. The objective of this work is the unification of the entire documentation for all projects, creation of a hydraulic model of water supply network and subsequent verification of the existing capacities and pressure ratios. This work is particularly focused on the evaluation of pressure ratios at the highest and the lowest points of villages, whether they correspond to the legal limits, and subsequent design of a possible division to pressure zones.

This Master’s thesis deals with design of heating source and heating system in the model object. Design is based on three variants of sources and heating systems. The first option is a heating pump air/water, the second option is pellet boiler and the third option is heating pump ground/water. At first heating losses are determined. Then heating systems and related heating sources are designed. The fundamental part of these free options is a design of alternative source for central heat and and hot water and heat storage. The last part is comparison of all variants.

This diploma thesis deals with sanitation installations in residential building in Brno. The theoretical part is devoted to the analysis of the topic with emphasis on Individual ways of preparation hot water in residential buildings. Technical part then solves the sanitation instalations of this building in the selected variation. Calculation part contains design and proportions of sewerage and rainwater system, internal water installations and their connection to present technical networks. I tis a multi-story building with two underground floors used for parking and five floors designed for housing. Project was done according to current Czech and Europe standarts and regulations.

This diploma thesis addresses optimal technology and method for extrication and subsequent towing of crashed tank trucks. Ignorance of vehicle construction and wrongly chosen technology leads to subsequent after crash damages. Professional approach leads not only to after crash damages minimization on the vehicle, road and the surroundings, but also to convoy minimization etc. Another covered topic is tank vehicle construction (semi-trailer, trailer) because knowledge of tank construction and knowledge of transported material enable quick and safe extrication. Correct extrication method (which is also described in the thesis) can be used thanks to knowledge of crashed tank construction. Not knowing all needed information leads to after crash damages. This thesis will focus mainly on how to prevent subsequent damages.

Increasing demands regarding performance, safety and environmental compatibility of hydraulic mobile machines in combination with rising cost pressures create a growing need for specialized optimization of hydraulic systems; particularly with regard to hydraulic reservoirs. In addition to the secondary function of cooling the oil, two main functions of the hydraulic reservoir are oil storage and de-aeration of the hydraulic oil. While designing hydraulic reservoirs regarding oil storage is quite simple, the design regarding de-aeration can be quite difficult. The author presents an approach to a system optimization of hydraulic reservoirs which combines experimental and numerical techniques to resolve some challenges facing hydraulic tank design. Specialized numerical tools are used in order to characterize the de-aeration performance of hydraulic tanks. Further the simulation of heat transfer is used to study the cooling function of hydraulic tank systems with particular attention to plastic tank solutions. To accompany the numerical tools, experimental test rigs have been built up to validate the simulation results and to provide additional insight into the design and optimization of hydraulic tanks which will be presented as well.

In der vorliegenden Arbeit wird die Konzeptionierung und die Realisierung eines teilkontinuierlichen Thermolyseverfahrens zur rohstofflichen Verwertung von Polyethylen- und Polypropylenabfällen beschrieben. Die Ausführung in der zweistufigen Rührkesselkaskade gewährleistete dabei die Trennung der Prozessschritte Schmelzen sowie Cracken der Einsatzmaterialien, woraus ein Thermolyseöl hervorging, welches weitestgehend frei von den Verunreinigungen aus den Abfällen war. Das Thermolyseöl wies eine Zusammensetzung aus Benzin- und Dieselkomponenten auf und erfüllte einige entscheidende Kraftstoffkriterien. Zur Senkung der qualitätsmindernden Olefingehalte wurden in einem weiteren Teil dieser Arbeit Untersuchungen zur heterogen-katalysierten Hydrierung der Siedeschnitte im Schüttgutreaktor und im Rührautoklav durchgeführt. Dabei konnten die Olefingehalte durch den Einsatz eines Palladium-Platin-Trägerkatalysators sowie durch einen Nickel-Gerüstkatalysator maßgeblich gesenkt werden. Als unerwünschtes Nebenprodukt des Thermolyseprozesses resultierte ein geringer Anteil Koks, welcher in der Schmelze akkumulierte und sich teilweise an der Reaktorwand ablagerte. Die entstandenen Mengen wiesen eine Abhängigkeit von der Prozesstemperatur und -dauer auf und mussten aus dem Prozess geschleust werden. Als weitere Nebenprodukte traten ein leichtflüchtiges Spaltgas sowie ein Sumpfrückstand auf. Darüber hinaus wurde gezeigt, dass die aufzuwendende Energie für den Thermolyseprozess durch die Energiegehalte der Nebenprodukte gedeckt werden kann. Neben dem Einsatz als Kraftstoff empfahl sich das Thermolyseöl aufgrund seiner physikalischen und chemischen Eigenschaften gerade im Hinblick auf einen nachhaltigen Umgang mit Ressourcen als beachtenswerter Ersatz für fossiles Rohöl.

Clean and safe water is important for the well being of all organisms on earth. Therefore, it is important to reduce harmful emissions from industrial processes that use water in different ways. In vehicle washing processes, water is used in high-pressure processes, as a medium for detergents, and for rinsing of vehicles. The wastewater produced by these functions passes through a water reclamation system. A water reclamation system has two main functions, to produce reusable water to be used in future washing cycles, and to separate contaminants and purify the wastewater so it can be released back into the commercial grid. The reclamation system achieves this by using a combination of different water handling processes, these include: sludge tanks, an oil-water separator, a water reclamation unit, buffer tanks, and a water purification unit. The two components that stand for the more advanced cleaning processes are the water reclamation unit and the water purification unit. In this thesis, in collaboration with the company Westmatic, the water reclamation unit consists of cyclone separators that use centrifugal forces to separate heavy particles and ozone treatment to break up organic substances and combat bad odors. The Purification unit of choice is an electrocoagulation unit that, by a direct current, creates flocculants of impurities that rises to the surface and can be mechanically removed in a water volume inside the unit. This purification process is completely chemical-free thus making the process more environmentally friendly than other purification processes used in other circumstances. This master thesis aimed to develop a dynamic design tool for a modular solution of the different parts in the water reclamation system. This design tool uses specific user input to produce construction information for each instance. As an additional sub-aim, this design tool was linked with a computer-aided design program to produce parametric 3D models with underlying blueprints. This to produce a light solution, that has a short manufacturing time and that are highly customer adjusted. The first course of action was to mathematically define the complete water reclamation system and its components. These sections were described in a flowchart that shows how the different parts interact and operate. From the wash station, wastewater runs trough a course- and fine-sludge tank. From the fine sludge tank, the wastewater is directed in two different directions. Firstly, the water is pumped to the water reclamation unit and to one or multiple buffer tanks to finally be used in the wash station as reclaimed water. Secondly, the water travels to an oil separator, pump chamber, and water purification unit. In the purification unit, 99% of the inlet mass is directed out of the system as purified water. The remaining 1% is directed to a depot that acts like the end stage of the whole system. After all equations were defined and the design was related to the user-defined input flow the design tool was structured. The program of choice to house the design tool is Microsoft Excel. In this Excel document, a user interface with navigation was constructed and the intended user is directed through a series of input pages where input data is defined. This data is used in a normally hidden page where constructional dimensions are calculated. The constructional dimensions are displayed to the user on the second last page. At this stage the Excel document can be connected to a CAD program and 3D models with blueprints can be opened that depend on the output from the Excel file. Additionally, a pipe calculator is provided on the last page of the Excel document where pipe dimensions for different cases can be found. With this solution, glass fiber tanks are molded according to the resulting blueprints that are customer specific. In this way the solution is more adaptive and easier to handle. Additionally, the provided design tool enables an easier and more well-defined methodology when deriving the different needed volume and accompanied constructional dimensions for an arbitrary water reclamation system.

In direct teleoperation the interface is vital to control a robot. Often it is reduced to a simple controller and the feedback provided by a camera stream in a monitor which leads to poor results. A telepresence system combined with a Free Look Control is proposed to increase the result in terms of situational awareness, usability and comfort. The telepresence system provides the sense of depth to the operatorin several manners. Free Look Control replaces Tank Control as control mode, in which the robot can be driven in any direction and the operator takes the control of the camera. A synergy is found when both features are implemented together as their advantages are increased. In addition a multi-camera setup is created, in order to build the 3D environment shown to the operator, which is calibrated in an automatic way. The two different control modes are tested and compared by several people. The outcome shows how the inclusion of these characteristics improve the result of the teleoperation in a visible way.