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Conditions of Waste-made Fuel Combustion including legislative Requirement
Matoušek, Petr ; Pavlas, Martin (referee) ; Novotný, Pavel (advisor)
This bachelor’s thesis describes possibilities of usage of waste-made fuel from point of view of energetic utilisation in industry and power supply. There is a brief overview of energy resources structure, current situation in energy production and in waste management in Czech Republic. Particular types of waste-made fuels are also specified. One of the main parts of this work is fundamental analysis of legislation which governs waste management and alternative fuel usage. In the last part of the thesis the possibility of usage of mechanical-biological treatment as a waste management system is assessed.
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Reduction of Valvetrain Mechanical Losses
Kučera, Pavel ; Píštěk, Václav (referee) ; Novotný, Pavel (advisor)
The topic of this thesis is the mechanical losses in the valvetrain. The purpose is to describe the creation of individual losses and their possible reduction. The main factor of creation of losses is friction. The result of this thesis is to highlight the possible methods to reduce friction and other influences acting on the valvetrain. The main benefit is description various types of surface and design modifications of valvetrains, which are already used or are in development.
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Powertrain of in-line five-cylinder diesel engine
Zarambukas, Michalis ; Novotný, Pavel (referee) ; Píštěk, Václav (advisor)
The aim of this graduation theses is geometrical and thermodynamic calculation of determined five-cylinder diesel engine and calculation of operation parameters of cylindrical unit and then to compare them with real motor and strike the balance. Other step is to work out thermodynamic cycle and draw the result in p-V diagram. Then to calculate power, effecting on piston which includes proposal of basic proportion of piston and wrist pin, and it follows weigh of piston group and maximal quickening and inertial force of piston group, calculation of specific pressure and pressure in wrist pin. Other purpose is to determine basic proportion for piston rod and to focus on material qualities of con rod eye and bronze case, determination of maximal pressure due to inertial forces comming from gas pressure and security against possible slip and tiredness. At the beginning is described diesel engine from its foundation, its activity to its use in company. At the close are reviewed the results of the calculations.
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Powertrain of experimental single-cylinder spark ignition engine
Laštovica, Karel ; Novotný, Pavel (referee) ; Píštěk, Václav (advisor)
These bachelor’s thesis deals with experimental single-cylinder engine, calculation of his thermodynamic cycle, design of a piston, design of a can rod eye and his strength check. In introduction there is states function principle of combustion engine and their basic division and application. The bachelor’s thesis consists of five parts: scheduled initiatory parameters, calculation of thermodynamic cycle, calculation of the piston group weight, calculation of forces reacting to piston group and strength check of con rod eye. In the conclusion results of calculation are evaluated.
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Chain Drive for Valvetrains
Vodička, Richard ; Píštěk, Václav (referee) ; Novotný, Pavel (advisor)
The objective of this bachelor‘s thesis is obtaining the general review about the way of driving valvetrains. Introduction is devoting the driving of distributive mechanism of combustion engines . The text of bachelor‘s thesis is splitted on three parts. The first part is explaining the principle of functioning enginetrain. Briefly are described individual assembling of ventil distributor of engines and its distinction depending on the way of its drive. The main attention is devoted to the chain drive of valvetrain, i.e. distinction of types chain drive, which are necessary for its correct functioning. And also, are described the main parts of valvetrain of the engine and the other possibilities of its driving. The second part of bachelor‘s thesis is comparising positives and negatives of chain drives of valvetrains with the othe one’s. In the third part of bachelor‘s thesis are presented the examples of application of the chain drives in the valvetrains in the four wheel drives machines, cars and motorcycles. In the conclusions is specified the contribution of the chain drive of valvetrains and evaluation of bachelor‘s thesis.
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Methods of environmentally friendly carcass disposal
Blažek, Pavel ; Kropáč, Jiří (referee) ; Novotný, Pavel (advisor)
In the thesis we deal with a summary of all available methods of disposal of environmentally friendly vehicles that are currently available. Addressing this problem is to find appropriate procedure, thereby simplifying and reducing the cost of processing vehicles. We also deal with this issue in terms of legislative, therefore a summary of the law on dealing with waste vehicles. The aim of this work is to introduce the methods of processing whole vehicles as well as various parts of cars and find the most appropriate methods of disposal
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Powertrain of in-line three-cylinder diesel engine
Riemel, Pavel ; Novotný, Pavel (referee) ; Píštěk, Václav (advisor)
Objective of bachelor’s thesis is for main predetermined geometric, thermodynamic and operation parameters cylindrical unit of line three-cylinder compression-ignition engine perform calculation of thermodynamic cycle, project basic dimensions of piston group and for noted operating modes perform strength check of con rod eye. Resulting values compare with comparable compression-ignition engine and verify its appropriate functionality. In preamble of work is mentioned compression-ignition engine, its basic usage, principle of function and description its main parts. The work is compound of two basic parts. The first contains description of calculation with related graphic and the second calculating supplement in which are calculations of thermodynamic cycle, forces reacting on piston group, strength calculation and control of con rod eye. At the close results of calculation are analysed.
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