The thesis deals with issues of the internal combustion engines, particularly the influence of ignition time on the parameters of petrol engine. The aim of this study was to determine the influence of the nature of the combustion products on the ignition time. The measurement took place at the Brno engine testing room of ABC Company, a private venture developing turbo-chargers. The measured values were then processed following a beforehand established methodology. The results presented in the following show the influence of ignition time on the production of combustion products and power parameters of petrol engine. This way the results allow optimization according to operational requirements.

The thesis is focused on analyzing the current status of the technology used for cleaning flue gas from persistent organic pollutants, especially PCDD/F. For the three most commonly used methods of solution operational and energy efficiency comparison was made, where achievable energy export and the impact of the change in working conditions on the efficiency indicators of energy production and use of the energy was evaluated. In conditions we considered an alternative machine-technological solutions used for the final disposal of persistent organic pollutants resulting from the waste combustion in terms of additional operating costs and energy efficiency.

The presented diploma thesis deals with the design of an electrostatic precipitator for a domestic automatic wood fuel boiler. The individual chapters describe the products of the combustion process, the principles of charging dust particles, describe existing patents related to electrostatic precipitators, commercial electrostatic precipitators and the last part of the work calculates a mathematical model, according to which previously designed and evaluated separator variants were designed and evaluated. Based on the results, the optimal variant of the electrostatic precipitator designed for a domestic boiler is then selected.

Thesis is focused on calculation of the condenser of flue gas, which is created by burning of natural gas. In the first part is theoretical overview of equations describing film condensation and physical properties of the flue gas. The second part deals with practical thermal calculation of the specified condenser. In third part parametric study is done in which a tempature of cooling water at inlet and the coefficient of excess air are changed. The last part of the thesis is dedicated to geometric design of the flue gas condenser whose required power is 8 MW.

This doctoral thesis deals with potentials of methods for cleaning of flue gas from pollutants such as acidic components. Wet method of flue gas cleaning is analysed in detail with special focus on elimination of sulphur dioxide (SO2). Introduction presents advantages and disadvantages of thermal processing of waste and production of undesired pollutants. Following parts comprise facts about main pollutants produced from incineration. Legislation providing for emission of gaseous pollutants from incinerators is also given. Chapter concerning methods of pollutants elimination is mostly focused on absorption (wet and/or semidry scrubber) and adsorption methods. Several up-to-date technological procedures are mentioned; they have a multifunctional effect such as elimination of acidic components, heavy metals, polychlorinated dibenzo-p-dioxines and dibenzo-furanes from flue gas using single injection of suspense. Elimination of mercury (Hg) is among the technologies for heavy metal elimination which is described in detail. Main part of the thesis is related to experiments at two-stage flue gas cleaning equipment. Function of this experimental unit is described along with methods for measurement of individual quantities and detailed description of all the equipment and its components. Experimental measurements carried out at this equipment are explicated and assessed. Along with experimental work, the author has created a simulation model of wet flue gas cleaning in ChemCad programme. Particular operational parameters were tested on this model. This thesis contains results of the measurement which provide background for verification of the mathematical model. Further, the balance of heavy metals conducted on the basis of measurements in waste incinerator is displayed. Main contribution of the thesis may be summed up as follows: ­ Author has designed and constructed experimental equipment for two stage flue gas cleaning. ­ He also formed calculation for pressure drop of O-element prototype equipment and for packing column with FLEXIPAC structured packing. ­ He created data file with measurements at the experimental unit. ­ He determined temperature at outlet of a random device where liquid is injected into stream of hot flue gas. ­ He designed a simulation model which is identical with experimental equipment and which usage enabled comparison of measured and calculated data; it also serves as a basis for industrial applications. ­ Last part deals with creation off heavy metals balance in a case industrial waste incinerator.

This master‘s thesis deals with design adjustment of spark ignition combustion engine, which might offer larger share of recirculated exhaust gases in cylinder for reaching a large number of benefits that exhaust gas recirculation can offer. The introductory theoretical part describes exhaust gas recirculation and its influence on spark ignition combustion engine. In the following part the methods of mixture layering and types of intake ports are described. Further design of spiral intake port is made based on calculations. Capability of mixture layering is valuated by numerical simulation. Flow properties of intake ports are compared to production version by an experiment on flow station.

The objective of the presented diploma thesis is reduction of nitrogen oxides from the flue gas stream on catalyst under non-standart conditions. Emphasis is places on the description of selected pollutants in flue gas (especially nitrogen oxides), legislative requirements for air protection and technologies for removal of nitrogen oxides, expecially methods of selective catalytic and non-catalytic reduction. The practical part is devoted to the reduction of nitrogen oxides by selective catalytic reduction on a pilot plant INTEQ II in the laboratory NETME Center. The subject of interest is the determination of the NOx reduction efficiency depend on the temperature for selected catalyst. The end of the practical part pursues with comparison of measurement results and their evaluation.

The purpose of the thesis is to create preliminary design calculations to determine dimensions, weights and pressure losses of individual contaminated biomass combustion gas treatment nodes. The first part of the thesis deals with the definition of biomass as a fuel, legislative determination of allowed emissions and their description. Then the systems for combustion gas treatments are discussed given their brief description. The practical part focuses on shape designs, determining base dimensions of each type. Weights and pressure losses of individual versions are computed too. In the last part the individual versions are solved with real values and compared to each other.

This thesis mainly deals with the thermal treatment of waste - hazardous waste incineration and energy recovery municipal waste incinerators - their descriptions and analysis of legislative conditions. The flue gas cleaning system energy production in different operating modes is assessed by energy and mass balances. Computational models are developed for this purpose. On this basis, productions of energy from thermal treatment of hazardous and communal waste were compared.

Research of conditions when sulphure dioxide is absorbed from flue gas, is the main objective of this master's thesis. Efficiency of this flue gas cleaning was measured on an experimental device, which consist of an absorption column filled with structured packing’s, and another component so-called "O-element". Further, a possibility of upgrade this "O-element" to tread more flue gas is presented.