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Dissertations / Theses on the topic 'Spalovací systém'

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Published: 4 June 2021
Last updated: 4 February 2022

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1

Holešovský, Petr. "Řídicí systém spalovacího systému EKOGEM." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232091.

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This master´s thesis deals with automatic control of solid fuel boiler. Main goal of this thesis is to design control system for combustion system EKOGEM. In this thesis is introduced combustion system and its designed control. Thesis describes realization of control system and presents results, in which shows its benefits for combustion system. Control system is realized in NI LabVIEW environment.
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2

Touš, Michal. "Výpočtový systém pro výběr optimálního způsobu využití energie generované spalovacími procesy." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-234148.

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PhD thesis deals with application of simulation and optimization methods in the field of waste and biomass utilization for energy purposes. Current situation in this field is described in the introductory. Following chapters deal with approaches of creating mathematical models of apparatus and processes used in the field of interest for simulation and optimization purposes. Stochastic methods, which are widely applied for real problems solution, are mentioned as well. The core of the thesis consists in proposal of systematic approach and its application for simulation and optimization model building used in the field of interest. The application is demonstrated through two case studies. The first one deals with the building of simulation model of an existing waste-to-energy plant using its operation data. The second study deals with optimization model building and its application for a problem regarding utilization of biomass in an existing energy system.
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3

Macalík, Radek. "Identifikace regulované soustavy, jednotka pro spalování biomasy." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228075.

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This thesis dissertates the identification of existing experimental unit of biomass combustion. It analyses particular methods of identification, the selection of a model and methods of the estimation of parameters, especially by using last square method and analysis of time-response characteristic. It describes common identification procedure and particular algorithms which were used in practice for obtaining model’s parameters. The thesis also mentions popular software tools used for the modeling and the identification of systems. It comprises the implementation of obtained mathematic models using programming environment Borland Delphi as well.
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Zubík, Martin. "Řešení vibrací pohonné jednotky s využitím výpočtového modelování." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230809.

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The thesis solves vibration of simple combustion engine model as a basic step for evaluating the noise of engine. On the basis of computational model realized in software MBS ADAMS, which contains all significant input parameters, there are found normal velocities of the one cylinder four stroke engine block surfaces. The outputs are then processed into the integral characteristics that define the level of possible emissions for whole acoustic spectre. Two variants of the engine block were solved and in the end the summary of solution approach was made.
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5

Koláček, Richard. "Výkonové parametry systému pro energetické využití biomasy." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228093.

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This diploma thesis deals with the problems associated with acquisition of experimental data from technological unit for biomass combustion with nominal capacity of 1 MW, with regard to determination of thermal efficiency. In the introduction part, parameters of currently available biomass-based fuels as well as of those with large potential in the future are summarized. Further, a review in the field of biomass combustion technology is given. Biomass boilers are compared according to their technical parameters, function and benefits and drawbacks. In theoretical part methods for determination of thermal efficiency by direct method, indirect method and modified indirect method are described. Main parameters influencing resultant values of efficiency are included into the analysis. In final part an evaluation of real operational data from prototype unit combusting wooden chips is made. Recommendations for further experimental data gathering and their processing with the aim to evaluate thermal efficiency are suggested.
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6

Máša, Vítězslav. "Matematický model kotle na biomasu pro účely řízení." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-233909.

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he thesis focuses on building of dynamic mathematical model of biomass boiler as a controlled system and the use of this model in practise. At the first part of the thesis the area of energy production using biomass is introduced and the current development at the area of the automatic control of biomass boilers with medium energy output (in units of MW) is described. Although the main topic of the thesis is the construction of model of biomass boiler for control purposes, thesis deals with technology of boilers and principles of its inner processes as well. Creation of the model comes out not only from these important findings, but also from experimental data collected during measurements in real operation. Heat and mass balance calculations were made according to these data and they serve to precise static properties of experimental unit for biomass combustion. Central part of the thesis presents development of the final model that resulted from balance calculations and from step responses of the system obtained by measuring. Built dynamic model is compared with experimental data through simulations in Simulink and verified. At the next part the model of controlled system is completed with control system and closed-loop control circuit is validated and verified by simulation. Then the design of new controller configuration, which improves the quality of control considerably, is presented. At the final part of the thesis, possibilities of other use of the model of boiler are given, both in control theory and in industrial practice.
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7

Koutecký, Jan. "Kamna v konceptu moderního vytápění." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225729.

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Thesis deals with stoves, considering them as the main source of heating. The theoretical part is focused on practical and theoretical stove designing and burnnig proces. The designing addresses three of the countless variations on the koncept of modern stove heating. Each variant is unique in its technical and design way of solution. Experiment affects the properties hypokaust stove.
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8

Kropáč, Jiří. "Pokročilý výpočtový nástroj pro návrh systému čištění spalin z procesu termického zpracování odpadů." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-233991.

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The thesis describes the development of a computational tool that allows sophisticated analysis and design of flue gas cleaning technologies for thermal treatment of waste. The assessment of a technological composition of the process in terms of energy consumption, temperature of the flue gas stream and ensuring the fulfilment of emission limits allows estimating the influence of flue gas cleaning system on parameters of an up-to-date waste incinerator. The work is based on an already created computational system. Its output will be integrated into a software system with a user-friendly interface. Creation of the computational system is based on the performed research in the given area. The work presents sets of operational values and relationships describing current technologies used to reduce harmful emissions in the flue gas from thermal treatment of waste.
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9

Bednář, František. "Analýza možností akumulační tepelné elektrárny v podmínkách ČR." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231650.

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This diploma’s thesis analyzes the possibility of accumulation of thermal power plants in the Czech Republic. The thesis is divided into several parts. The first part describes the different types of storage power plants, the historical development of power storage for compressed air and the appropriateness of their location. The second part is devoted to the design of storage power plant for compressed air in South Moravia. In the next chapter, a calculation is made of all equipment storage power plant, including turbo-compressor, combustion chamber, combustion turbines, the volume of storage tanks and two heat exchangers. The last part is the economic analysis of the return on investment of such a project.
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10

Jebavá, Alžběta. "Polovodičová keramika pro termoelektrické aplikace." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2015. http://www.nusl.cz/ntk/nusl-217139.

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This diploma thesis focuses on the syhnthesis of multicomponent ceramic system based on Ca-(Mn,Co)-O. The thesis is devided in theoretical and experimental part. The theoretical part is describing ceramic materials for thermoelectric application, preparation and synthesis of these materials and their processing. The experimental part is dealing with synthesis of ceramic powder which is processed to the porous ceramics. The properties of prepared porous ceramics are observed.
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11

Bravený, Adam. "Udržitelnost systémů odpadového hospodářství." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231047.

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The thesis proposes a new approach to assess sustainability of waste management systems. In the first part current mixed municipal waste (MSW) management system of the Czech republic is reviewed and promising MSW treatment techniques are introduced. In the second part a summary of literature on Life Cycle Assessment (LCA) approach to assess sustainability of MSW systems is provided. A new sustainability assessment model is proposed by implementing LCA to a current tool called NERUDA used to optimize waste management costing. It is demonstrated how to connect these two concepts in order to aquire a powerful tool for sustainability assessment.
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12

Ševčík, Ondřej. "Aplikace vysokotlakého palivového systému na vznětový motor." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-378502.

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This thesis focuses on the design of new high pressure injection system application on diesel engine. The design came from company Zetor’s demands. For this application was chosen system Common Rail supplied by company Bosch. Assignment was separated into several tasks. Research of suitable components for low pressure section, design of waste system and high pressure injection tubes design including injector clamping. Due to injectors used in this system was necessary to redesign cover for valves and even new system to lead wires from outside of the engine to injectors. Injector is attached by screw connection, which is composed from screw and clamping jaw. These parts are subjected to an analytic calculations. Clamping jaw of injector is even subjected to a FEM analysis, which focuses on fatigue life. Finally, the drawings were documented.
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13

Špičák, Milan. "Pokročilé algoritmy řízení pohonných jednotek." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-408015.

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This thesis describes computational control of vehicle powertrains using common variable, engine torque. The thesis is divided into three main parts. The first one shows design of methods for torque estimation using known or measured variables on the vehicle. The second part contains design of powertrain control algorithm utilizing the engine torque as a common variable among individual modules. The third part describes experimental optimization of the longitudinal acceleration of a vehicle using torque control.
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14

Kubínek, Martin. "Návrh mlýnského okruhu kotle PK 4S v Teplárně Košice." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232164.

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The aim of this thesis is the proposal of a coal mill system and a combustion chamber for the boiler PK 4S situated in Košice CHP station with regard to transition to the new fuel. This proposal is focused on the elimination of NOx emissions. The calculation is based on required parameters of the boiler and declared characteristic of the new fuel. The proposal of the coal mill system includes three roller mills working in closed circuit with direct blowing. One of the mills serves as a reserve in case of failure. Dimensions of the dry bottom combustion chamber are proposed considering the applied primary measures to reduce NOx emissions so that the temperature at the end of the furnace would not be higher than maximal allowed temperature 1200 °C.
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15

Bajer, Šimon. "Vliv paliva na parametry spalovacího motoru." Master's thesis, 2016. http://www.nusl.cz/ntk/nusl-362725.

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At the beginning the theoretical part of the diploma thesis deals with a characteristic of fuels for ignition engines, namely to automotive petrol and a mixture of liquid petroleum gases (LPG). The next part is focused on a description of conversions of individual elements which are necessary for cars which operate on alternative fuel. As well the attention is paid to the production of emissions of exhaust fumes of these engines, to individual components of unwanted emissions, their formation and effect to people and the environment. The own thesis introduces a proper measurement of Subaru Forester car, converted into the two fuel car which is possible to work both on petrol and LPG. Operational parameters for particular fuels were observed on the tested car.
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16

Nechvátal, Tomáš. "Vliv palivového systému na práci spalovacího motoru." Master's thesis, 2011. http://www.nusl.cz/ntk/nusl-90296.

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17

Borovička, Marek. "Optimalizace datových polí regulačního systému spalovacího motoru s nízkým momentem setrvačnosti." Master's thesis, 2016. http://www.nusl.cz/ntk/nusl-362512.

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The thesis is focused on the regulation of a combustion engines with low moment of inertia, especially of a two-wheelers. The theoretical part firstly discusses about the regulation of internal combustion engines in general, further describes the problem of a hardware architecture of the control systems, sensors, electronic control units, actuators, their functions and design. The main part of the thesis is devoted to the experiment consisting in data optimization in the programmable electronic control unit of a racing motorcycle and subsequent measurement of influences on a dynamometer. The outcome of the experiment is setting of specific peripheral functions of the electronic control unit and adjustment of the control system of motorcycle combustion engine for a particular mode of operation, in this case for racing operation.
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18

Paseka, Petr. "Tepelná bilance motoru." Master's thesis, 2009. http://www.nusl.cz/ntk/nusl-96200.

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