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Alternative Fuel Engines
Mišelnický, Lukáš ; Svída, David (referee) ; Dundálek, Radim (advisor)
Bachelor thesis describes the engines to alternative fuels. There are presented different types of fuel properties and engine modifications so that the fuel can burn. In conclusion, the overall assessment of the prospects for future development
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Description of outside grinding machines
Brychta, Tomáš ; Opl, Miroslav (referee) ; Blecha, Petr (advisor)
In this bachelor’s thesis is completioned background research and outside grinding machines description.In the introduction of this thesis are shown the aims which will be reached while elaborating. This thesis includes general introduction about grinding, where is mentioned definition of the grinding, description and grit distribution on grinder, parametres of grinders, reached geometric accuracy, reached surface roughness, cross section of cuttings, definition of the main and alternate movement and cutting conditions on the tool and on the workpiece at grinding.Furthermore general partition of grinding machines types, view and the parting of the grinding machines producers, with the references to their web sites and with data about country of origin for each of these producers. After it the thesis focus only on outside grinding machines and in their division. In centre grinding machines is shown their division and characterictics, ways of grinding and description of each way and there are shown producers of centre grinding machines with concrete tips of machines too. In each of this machine are shown its preferences and engineering characteristic. In profile grinding machines is shown its characteristic, producers of profile grinding machines and tips of these machines. In surface grinding machines is shown characteristic of surface grinding, the partition of the surface grinding machines, ways of grinding and description each way, producers of these grinding machines and tips of separate machine with its preferences and engineering characteristic. The last type of the outside grinding machines are centreless grinding machines. There is shown characteristic of centreless grinding, ways of grinding and the description each of the way, producers of centreless grinding machines and tips of these machines with its description and engineering characteristic. By the centreless grinding are shown even the ways of double disk grinding with the examples of utilization this grinding. The work is ended by finish, where is shown overall assessment in the way of grinding machines development, resources and innovations, which the producers using to increasing precision of the machines.
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Design of the footbridge over the railway
Mertová, Eliška ; Krejčík, Vladimír (referee) ; Klusáček, Ladislav (advisor)
The aim of this bachelor´s thesis is a design of a new footbridge over the railway instead of an existing reinforced concrete pedestrian bridge in a compound of the cement factory in Mokrá at Brno. The footbridge is used to the transfer pedestrians over the mentioned train. The work is composed of the design of the pedestrian bridge as a continuous frame structure, including making a model of the bridge for an analysis of internal forces, design and checking the structure for the ultimate and serviceability limit state. A calculation of load effects is processed by the computer software Scia Engineer 2013. The construction stage analysis wasn´t applied in the structural calculations.
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Financial Analysis of ZVVZ-Enven Engineerins, a.s.
Beneš, Michal ; Mikan, Pavel (advisor) ; Brabec, Martin (referee)
The main goal of this bachelor's thesis was the application of financial analysis on company ZVVZ-Enven Engineering in 2008-2012, which should reveal the overall financial health, to show its strengths and weaknesses, and to compare selected indicators of competition in the industry. Methods that have been used are described in the theoretical-methodological part and then applied to the analyzed company in the practical part. These include absolute, differential and ratio indicators, balance sheet rules or economic normals. There were also included pyramidal decomposition of return on equity, economic value added or bankruptcy and credibility models. All figures have been obtained from publicly available documents, primarily from annual reports and financial statements. The conclusion summarizes the results of the analysis on which was concluded the overall evaluation of the company.
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Analýza technických parametrů vznětových spalovacích motorů
Vimr, Lukáš
Bachelor thesis "Analysis of the technical parameters of diesel engines" deals with modern diesel engines. The work is divided into four main parts, the first points to the list of modern systems that are used in present internal combustion engines. The second part are table processing parameters of tractor engines. The third part is a regression analysis of selected technical parameters of internal combustion engines. The last part is focused on the overall evaluation of issues and conclusion.
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Simulation of flow and dissipation of turbulent kinetic energy in an agitated vessel
Kysela, Bohuš ; Skočilas, J. ; Konfršt, Jiří ; Chára, Zdeněk
Velocity field and distribution of dissipation rate are key parameters for design of mixing apparatuses. In this contribution we compared the CFD (Computational Fluid Dynamics) calculations with results of mean ensemble-averaged velocities measured by LDA (Laser Doppler Anemometry) and with results of derived dissipation rates where the total dissipation rate was used as control value. The comparison showed that the neither k-ε model (based on isotropic turbulence) nor RSM (Reynolds Stress Model) did not calculate the velocities in regions where the trailing vortices are developed (near impeller blade edges etc.) and in a region of main stream of the impeller where the flow is strongly anisotropic quite accurately. Similar discrepancies were observed for the dissipation rate; moreover the lower values of dissipation rate are also calculated in bulk volume of mixing vessel. Generally, the total dissipation rate results from the CFD calculations are lower then the real values. This is in an agreement with other published results.
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Problems of deal of the day websites and their cooperation with providers
Čeladníková, Tereza ; Pešek, Ondřej (advisor) ; Macháčková, Andrea (referee)
My bachelor essay discusses the topic of deal-of-the-day websites. In the foreword the key words as a deal-of-the-day website, sale-search engine, affiliate program and its connectivity and cooperation are explained. In the following part of the essay there can be found the development of the deal-of-the-day websites on the Czech market and the demonstration the great commencement of those websites, its growth, unceasing innovations and the estimate future development, particularly in the 2012. Among principles for processing of the practical part of this essay belongs a questionnaire filled by the providers, comparison with the abroad and comparison of two different-sized deal-of-the-day websites. The main goal of this questionnaire is to ascertain the overall satisfaction of the cooperation between provider and the deal-of-the-day websites. Comparison with the foreign countries' situation will consist particularly in collation with Groupon, the first deal-of-the-day website in the world. The comparison of the domestic, totally different websites will be done on the ground of the interviews with the representatives of each website.
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Financial analysis of the company SOMA, spol. s r. o.
Mikulová, Markéta ; Dufková, Eva (advisor) ; Pham, Hoang Long (referee)
The aim of this bachelor thesis is to perform the financial analysis of the company SOMA, spol. s r. o. from an external user for the years 2009 to 2014, assess the financial situation of the company and compare it with other companies in the sector, which are JHV-ENGINEERING, s. r. o., KOMFI, spol. s r. o. and LUX, spol. s r. o. This thesis includes methodical part, where are defined chosen indicators of the financial analysis. The analytical part includes the description of the chosen companies and the financial analysis according to the methodical part including intercompany comparisons. At the end there is an overall assessment of the results and summaries.
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