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Design of a combi cycle for heating plant
Rovný, Jan ; Kracík, Petr (referee) ; Milčák, Pavel (advisor)
Nowadays, European power production has to meet requirements than ever before. Environmentally oriented efforts end of coal mining and burning of coal, on which economies of a great number of countries depend. The main objective of these efforts is primarily the production of green energy from renewable energy sources and reduction of dependence on fossil fuels. However, the disadvantage of renewable sources (photovoltaics, wind farms) is their dependence on the weather conditions. As a result, there might be delays in supply of electricity, which must be compensated. One of the solutions is the launch of a combi cycle plant, which has the possibility of almost prompt start-up and electricity production. The combustion of gas and liquid fuels also ensures almost emission-free operation. In addition, thanks to the use of waste heat energy from the gas turbine, it is possible to operate the combi cycle unit with the character of a power plant and as a heating plant. The aim of this thesis is to search for combi cycles and balance calculation of the combi cycle heating plant under given conditions. In the last point, the approximate dimensions of the calculated heating plant are given.
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Balance of energy recovery waste
Rovný, Jan ; Špiláček, Michal (referee) ; Baláš, Marek (advisor)
The way waste is handled is a topical and sensitive issue on a long-term basis, especially in connection with the energy use of (mixed) municipal waste. Despite the very variable composition and properties, municipal waste is after homogenization a potentially energy efficient fuel that saves primary energy sources and thanks to efficient flue gas cleaning systems is environmentally friendly. There is still a large amount of municipal waste in the Czech Republic, but there are more efficient ways of processing – recycling, composting and energy utilization. The aim of the thesis is to analyze the properties of municipal waste as a raw material, to compare the methodology of statistical measurement from various sources and then to objectify the balance of waste in the Czech Republic. The last aim is the search of waste energy recovery facilities in the Czech Republic and describe balance of energy-using waste in these facilities.
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Design of a combi cycle for heating plant
Rovný, Jan ; Kracík, Petr (referee) ; Milčák, Pavel (advisor)
Nowadays, European power production has to meet requirements than ever before. Environmentally oriented efforts end of coal mining and burning of coal, on which economies of a great number of countries depend. The main objective of these efforts is primarily the production of green energy from renewable energy sources and reduction of dependence on fossil fuels. However, the disadvantage of renewable sources (photovoltaics, wind farms) is their dependence on the weather conditions. As a result, there might be delays in supply of electricity, which must be compensated. One of the solutions is the launch of a combi cycle plant, which has the possibility of almost prompt start-up and electricity production. The combustion of gas and liquid fuels also ensures almost emission-free operation. In addition, thanks to the use of waste heat energy from the gas turbine, it is possible to operate the combi cycle unit with the character of a power plant and as a heating plant. The aim of this thesis is to search for combi cycles and balance calculation of the combi cycle heating plant under given conditions. In the last point, the approximate dimensions of the calculated heating plant are given.
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Balance of energy recovery waste
Rovný, Jan ; Špiláček, Michal (referee) ; Baláš, Marek (advisor)
The way waste is handled is a topical and sensitive issue on a long-term basis, especially in connection with the energy use of (mixed) municipal waste. Despite the very variable composition and properties, municipal waste is after homogenization a potentially energy efficient fuel that saves primary energy sources and thanks to efficient flue gas cleaning systems is environmentally friendly. There is still a large amount of municipal waste in the Czech Republic, but there are more efficient ways of processing – recycling, composting and energy utilization. The aim of the thesis is to analyze the properties of municipal waste as a raw material, to compare the methodology of statistical measurement from various sources and then to objectify the balance of waste in the Czech Republic. The last aim is the search of waste energy recovery facilities in the Czech Republic and describe balance of energy-using waste in these facilities.
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Are Registration Numbers from Prague Officials Allocated Randomly?
Rovný, Jan ; Bolcha, Peter (advisor) ; Babin, Jan (referee)
This bachelor thesis verifies random allocation of registration number of vehicles in the capital city of Prague. The aim is to determine whether vehicles with attractive registration number have a statistically significantly higher purchase price, which disproves random allocation. The second aim is to verify whether vehicles with attractive registration number statistically significantly use the left lane in the driving direction, which is the lane designated for overtaking. The data needed to verify these hypotheses was gained by two day measuring during which were captured more than 4,000 vehicles. From footbridge over the Nuselský Bridge in Prague were recorded passing vehicles using the camera. From the entire sample were randomly generated 184 vehicles. For cars was estimated the purchase price in the time of allocation of registration number. The numerical combinations of registration numbers were divided into three categories according to attractiveness. These categories were compared with each other in the three models based on their average prices. According to measurement results we can at one percent significance level reject the null hypothesis and say that at this level of significance are not the registration numbers allocated randomly. The result of the fourth model is not statistically significant. It did not confirm that the vehicles with an attractive registration number use more left lane in the direction of travel.
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