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Záznamy kolekce (řazeno podle Datum zaslání v sestupně pořadí): 1 až 20 z 56
Pěnkava, Jan
Návrh turbíny do kombinovaného cyklu

This thesis deals with a design of an HRSG and a steam turbine to a CCGT, which was specified by properties of flu gas. One of the main goals of the paper is to compare performances of the steam turbine designed for single - pressure and double - pressure&#...

Stříteský, Martin
Kondenzační parní turbína

This diploma thesis deals with design of condensing steam turbine of unusual parameters. The paper presents thermodynamic cycle calculation, flowpath design and basic stress calculations. A few analysis were performed using numerical methods to support a design of particular construction tasks.&#...

Müller, Jan
EOH - Equivalent operating hours of steam turbines

This diploma thesis is focused on the issue of equivalent operating hours (EOH), proposal of its determination and possible use for client practice. This work describes supporting modules and systems, which are in some way determining EOH and control of steam turbine life-time. Fur...

Klavík, Petr
Fyzikální modelování proudění v palivovém souboru v aktivní zóně jaderného reaktoru

This diploma thesis is focused on the description of the nuclear reactor and its parts. First, it describes the design of fuel assemblies with a focus on mixing grids and the associated problems of flow with it. The main part of the diploma thesis is design implement...

Dufek, Tomáš
Experimentální studium úplavu za překážkou v proudové části turbíny

The diploma thesis deals with the measurement of the wake behind a barrier using PIV and stereo PIV methods. The aim of the work is mainly to demostrate efficiency of using the PIV methods for measuring the wake. In the introduction, the method is theoretically described,...

Klíma, Tomáš
CFD modelování proudění v palivovém souboru v aktivní zóně jaderného reaktoru

The following text is focused on the description of a nuclear reactor as a whole and its main components. It also deals with flowing fluids and CFD modeling. Subsequently, the work focuses on one particular part of the fuel assembly the mixing grid. The main part&#x...

Panuška, Michal
Steam Tail - Optimization of cycle between HRSG and steam turbine in combined cycle power plants

Following pages are focused on optimization of a reference combined cycle power plant. Optimization is done from point of view of bottoming (steam) process, which is being actively offered by steam turbine manufacturer as pre-engineered package. Suggested improvements take into account both&...

Volf, Michal
A study of reciprocating compressor valve dynamics

This master thesis is focused on one-dimensional study of reciprocating compressor valve dynamics. For this purpose, a tool was developed, which is used to qualitatively evaluate the individual aspects of valve dynamics as well as their interaction. A mathematical model, which is implem...

Hübel, David
Diagnostika šroubového kompresoru

The aim of this work is to propose a methodology for the operational diagnostics of a screw compressor. For this purpose, this research was focused on screw compressors namely their measurement and diagnostics. Then a series of experimental measurements were carried out...

Tomášek, Michal
Analýza proudění s podporou CFD ve stupni odstředivého kompresoru se vstřikováním vody

This thesis deals with the principle of the direct cooling of the pressure gas in a centrifugal compressor, based on evaporation of the additional fluid phase in the control domain. A decrease of gas temperature is reached by taking the heat which is required for evaporat...

Krejčí, Miroslav
Limity použitelnosti konstrukčních materiálů pro aplikace MSR (Molten Salt Reactor - GEN IV.)

This thesis contains an introduction to the problems of reactors IV. generation. Their basic description, corrosion problems and proposed structural materials. In the next part the thesis deals with evaluation of structural materials.

Löfler, Martin
Analýza transformace leteckého turbokompresorového motoru TV3-117 na energetickou jednotku

Thesis is aimed to aircraft turbocompressor turboshaft engine TV3-117. It is about conversion of this engine to a power unit. In the thesis are mentioned aeroderivative gas turbines used in world. Differences between aircraft engines and stationary gasa turbines are mentioned to. A ...

Hrych, Lukáš
Návrh podávacího mechanismu pro zařízení na likvidaci čidel neutronového toku a termočlánků

The diploma thesis deals with the design of a feed mechanism, precisely feed device for a machine eliminating the used neutron flux detectors and thermocouples. The device is designed specifically for detectors used at the Temelín nuclear power plant.

Rogova, Elena
Kondenzační parní turbína s přihříváním

Heat circulation of steam turbine including regeneration and flow path of steam turbine are processed in this diploma thesis. This work contains theoretical part for realization of the proposal of condensing steam turbine. The drawing of turbines section is also a part of this ...

Novák, Martin
Numerická simulace mikroturbíny pro ORC cyklus

This Master's thesis introduce a reader to a problematic of turbomachinery and its own placement into the technology background. After that it describes simplified theory of ORC and types of turbines applied in these cycles. A practical part of the paper is focused on nume...

Shyryayev, Volodymyr
Protitlaková parní turbína

The goal of this diploma thesis was to design a backpressure steam turbine to supply a town of 50 000 inhabitants with heat and electricity. This paper contains thermodynamic design and basic structural calculation of the steam turbine.

Hůlka, Petr
Návrh funkčního P&ID strojovny průmyslové parní turbíny 40MW s teplofikací se zaměřením na uzavřený chladicí okruh

This Master thesis is focused on creation of P&ID for machine room of 40WM industrial steam turbine for heating industry. In the machine room there are low-pressure and high-pressure heaters (LPH & HPH) and 2 district water heaters. The P&ID shows pipelines, valves and&...

Kortán, Pavel
Numerická simulace odstředivého ventilátoru s dozadu zahnutými lopatkami oběžného kola

The thesis contains CFD numerical calculation of the radial fan. The theoretical part describes the introduction to the theory of fans, their properties and aerodynamic characteristics. Following is an introduction to the CFD calculation and description turbulent models. The main part is...

Müller, Patrik
Příspěvek k výpočetnímu hodnocení přírubového spoje sevřené trubkovnice výměníku tepla

This thesis is focused on strength calculation of the flanged joint-tight tubesheet. Analytical calculation is compared with FEM analy-sis that has been carried out in Ansys software. This calculation also includes thermal state of the joint. Furthermore, the selection of suitable gasket...

Hurda, Lukáš
Large eddy simulation of turbulent flow around a low pressure gas turbine blade

This thesis dissert on assessing the solvers for fluid dynamics simulation of an incompressible turbulent flow in a low pressure turbine cascade using the Large Eddy Simulation. Simulations are carried out using high performance massively parallel computing facilities. The flow...

Záznamy kolekce (řazeno podle Datum zaslání v sestupně pořadí): 1 až 20 z 56