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Turbochargers for internal combustion engines.
Holík, Petr ; Martinec, Jiří (referee) ; Škorpík, Jiří (advisor)
This bachelor thesis deals with theme of turbochargers for internal combustion engines and shows basic systematic view of this theme. The work is divided into three main chapters. The first chapter deals with historical development and usage of turbochargers. The second chapter attends to working principle and energy transformation in the turbochargers. In the third chapter there are mentioned main types of turbochargers and their parameters and worldwide producers.
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Flow structure and energy transformation in an elbow draft tube
Štefan, David ; Skoták, Aleš (referee) ; Rudolf, Pavel (advisor)
Draft tube is very important part of hydraulic turbines. Only optimum work together with turbine can bring highest performance of this machine set. Hence it is necessary to deal with character of flow in the draft tube for different operating conditions. Efficiency of the draft tube depends on many phenomena of flow. Observing these phenomena and finding their relation with energetic transformation in the draft tube is a suitable tool to judge quality of draft tube performance. Incorrect design of the draft tube can sometimes cause lower efficiency of whole machine set. The goal of this thesis is finding the main reasons causing draft tube efficiency drop for given operating conditions.
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Poverty, Population, and Energetical Progress in European Union
Novák, Ivan ; Rečka, Lukáš (advisor) ; Janda, Karel (referee)
Energy poverty is closely connected to the current energy transformation focused on the utilization of renewable sources of energy. The thesis aims to evaluate whether European Union countries are prepared to tackle energy poverty effectively in the context of the ongoing transformation, which could impose an additional burden on vulnerable consumers. The thesis presents hierarchical clustering to group countries by common characteristics and assesses the countries' National Energy and Climate Plans (NECP) within the clusters. The study concludes that National Energy and Climate Plans are poorly specified for most European Union Member States. Only fifteen countries address energy poverty effectively, and only nine countries have appropriate measures and tools to tackle energy poverty, evaluating 2019 NECPs and 2023 NECP drafts if available. Next, the thesis describes a nonlinear relationship between energy poverty and both the total share of renewables on final consumption and the energy efficiency index of households - linked to investments for deploying renewable energy sources. Finally, an exploratory Agent-based model is presented. JEL Classification Q430, Q480, Q470, N7 Keywords Energy poverty, National Energy and Climate Plan, Fuel Transitions, Green Premium, Energy Transformation, Energy...
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Feasibility of EU decarbonisation plans from the production capacities point of view
Vařejka, Tomáš ; Pešek, Martin (referee) ; Hejčík, Jiří (advisor)
The presented master's thesis aims to process a critical study on the feasibility of decarbonization plans in the EU from the perspective of production capacities. Decarbonization, or the reduction of greenhouse gas emissions from the burning of fossil fuels, is the main tool for transitioning to a carbon-free society. The thesis presents the main European decarbonization plans, such as the Green Deal or Fit for 55, and evaluates the EU's previous climate policy. In accordance with these plans, decarbonization scenarios for the transition to new carbon-free energy sources are proposed for the target years 2030 and 2050, both at the EU and national level for the Czech Republic. Based on the proposed scenarios, the required capacity of new carbon-free energy sources is determined. The thesis also includes the determination of current production and implementation capacities and an assessment of their limitations. The result of comparing the required new sources with the current capacity is a proposal on how to increase these production and implementation capacities to theoretically achieve the set decarbonization goals.
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Flow structure and energy transformation in an elbow draft tube
Štefan, David ; Skoták, Aleš (referee) ; Rudolf, Pavel (advisor)
Draft tube is very important part of hydraulic turbines. Only optimum work together with turbine can bring highest performance of this machine set. Hence it is necessary to deal with character of flow in the draft tube for different operating conditions. Efficiency of the draft tube depends on many phenomena of flow. Observing these phenomena and finding their relation with energetic transformation in the draft tube is a suitable tool to judge quality of draft tube performance. Incorrect design of the draft tube can sometimes cause lower efficiency of whole machine set. The goal of this thesis is finding the main reasons causing draft tube efficiency drop for given operating conditions.
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Turbochargers for internal combustion engines.
Holík, Petr ; Martinec, Jiří (referee) ; Škorpík, Jiří (advisor)
This bachelor thesis deals with theme of turbochargers for internal combustion engines and shows basic systematic view of this theme. The work is divided into three main chapters. The first chapter deals with historical development and usage of turbochargers. The second chapter attends to working principle and energy transformation in the turbochargers. In the third chapter there are mentioned main types of turbochargers and their parameters and worldwide producers.
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