|
|
Emission standards for IC-engine vehicles and emission test systems
Náhlík, Tomáš ; Pech, Ondřej (referee) ; Štětina, Josef (advisor)
This bachelor thesis deals with the issue of emission standards and emission measurements with contemporary motor vehicles. Introduction acquaints reader with the reason it is actually necessary to address this issue and what are the main negative components of emissions by motor vehicles. Effects of such components on human health and the environment are also included. List of historic and of course current emission standards both from within the European Union and globally follows. The thesis concludes with an overview of analytic methods, tests and test techniques focused on emissions by motor vehicles.
|
|
|
Methods of dehumidification of indoor pool
Vrzal, Martin ; Bělka, Miloslav (referee) ; Pech, Ondřej (advisor)
The bachelor thesis deals with design of suitable method of dehumidification of indoor pool. The theoretical part includes an introduction to the issues of microclimate, humid air, humidity transfer and methods of dehumidification. The practical part is focused on calibration of measuring sensors and measurement of proposed quantities in the family house with indoor swimming pool. In the thesis is introduced a calculation of amount of evaporated water by several methods, after that results were compared. In the conclusion of this thesis is proposed suitable method of dehumidification of the family indoor pool based on calculated quantities of evaporated humidity.
|
|
|
Diagnostics of modern vehicles
Holeš, Cyril ; Pech, Ondřej (referee) ; Štětina, Josef (advisor)
Diagnostics of vehicles has become an important part of testing, control and developement of vehicles. The aim of this bachelor´s thesis is to summarize and compare the possibilities of diagnostics of modern vehicles. The first part of thesis focuses on the development of diagnostics, advantages and disadvantages of each type of diagnostics, review of the information obtained before the OBD II diagnostics and the list of standards and communication protocols. In the next part it compares the possibility of certain diagnostics in practice.
|
|
|
Heating, ventilating and air-conditioning in energy-efficient buildings
Vogel, Jan ; Pech, Ondřej (referee) ; Charvát, Pavel (advisor)
The bachelor’s thesis deals with heating, ventilating and air-conditioning in energy-efficient buildings. The first part of the thesis provides an overview of suitable met-hods of heating, ventilating and air-conditioning for energy-efficient buildings. The second part contains the evaluation of suitability of these methods in newly built fami-ly houses and apartment buildings and also in building energy retrofits.
|
|
|
Trends in the development of hybrid vehicles
Šebesta, Filip ; Pech, Ondřej (referee) ; Štětina, Josef (advisor)
This bachelor is aimed on making a survey of modern electric drives and hybrid cars. For each kind of drive out their properties, structural design, usage, advantages and disadvantages. It also describes new trends and technology of hybrid vehicles. In conclusion, the comparison of the advantages and disadvantages of hybrid drives and internal combustion engines. Assessment of the availability and economy of operation.
|
|
|
Unconventional methods of increasing power of internal combustion engines
Smrček, Martin ; Pech, Ondřej (referee) ; Štětina, Josef (advisor)
Nowadays the most common method for increasing the performance of internal combustion engines are most used chip tuning or expanding presence of ethanol. The aim of this thesis is to perform a basic analysis of the thermodynamic cycle internal combustion engines, various effects on the thermodynamic efficiency and performance and analyze various methods to additionally increase the performance of the engine. The following are the principles of the analyzed methods, advantages and disadvantages, compared to the methods used in terms of use, price / performance ratio, as well as practical application examples.
|
|
|
Methods of reducing the consumption of modern vehicles
Kubeš, Filip ; Pech, Ondřej (referee) ; Štětina, Josef (advisor)
This thesis summarizes the basic knowledge of thermodynamics of internal combustion engines. Emphasis was put on engine efficiency and engine cycles, described by theoretical and indicator diagrams. It also introduces classification of engine efficiencies, and their respective definitions. The next section focuses on some systems used in modern vehicles, that improves engine efficiency and reduces fuel consumption. Moreover it includes conceptual solutions, that are in preparation for mass production. The last part of this thesis concentrates on economical driving techniques, and reduction of driving resistance. In conclusion, the thesis shows the direction of next development of automobiles.
|
|
|
Air filtration methods
Valenta, Jiří ; Pech, Ondřej (referee) ; Hejčík, Jiří (advisor)
achelor thesis provides an overview of the methods used in industrial air filtration. The work consists of the 5 main parts of dry and wet mechanical separators, electric precipitators, fabric filters and filter media.
|
|
|
Earth heat sources for heat pumps – vertical bored collectors
Pech, Ondřej ; Štětina, Josef (referee) ; Jaroš, Michal (advisor)
This bachelor’s thesis deal with utilization of vertical bored collectors like source heat for heat pumps. The theoretic part contains an introduction with history and principle of heat pumps, operational modes, explanation of heating factor, low potential heat sources, types of vertical collectors, development of drill hole, materials of vertical collectors, their dimensioning, installing, operational problems, environmentalism of operational and their preferences and deficiencies. The practical part is dedicated to comparing approximate investment and operating costs for heating and hot service water preparing for designed house of five types source of heat.
|
|
|
Evaluation of means spent on monitoring assesment (evaluation) quality of education in years 2005-2011 in Vysocina county
Pech, Ondřej ; Říhová, Gabriela (advisor) ; Běláčková, Vendula (referee)
The thesis is focused on the selection of the best evaluation tool for Vysocina County Department of Education to facilitate the evaluation of the quality and level of education in this region. The work pays particular attention to the explanation of basic concepts related to the process of evaluation and further concepts associated with quality and quality management. Bachelor thesis identifies various methods of evaluation, and describes in detail the process autoevaluation. Subsequent analysis of secondary education in the Region evaluates and analysis of current evaluation tools leads to the most appropriate recommendations of the evaluation tool.
|
guest ::
