This master’s thesis deals with the possibility of increasing efficiency of energy blocks with combustion engines by the combination of the Sabat and Clausius-Rankine cycle into the combined cycle. In the thesis is briefly described the principle of the function of the auxiliary device, which can increase the efficiency of the combustion engine. This device, which consists of a waste heat boiler and two turbine modules, is designed using calculations. Both turbine modules are prepared with drawing documentation and there are described important structural elements. Each key part of the thesis is given by a brief theory, so the basic theory of combustion engines, waste heat boilers and steam turbine are described.

This diploma thesis deals with the determination of lifetime and computational modeling of stress strain states arising in the body of the steam turbine valve. Due to the high temperature of the inlet steam, the creep of the material which fundamentally affects its final lifetime is also considered in the calculation. The lifetime is evaluated by four different procedures using the finite element method via the ANSYS software. The results are compared at the end of this work. One of the chapters is focused on solving the problem of the creep in the ANSYS software environment.

The aim of this diploma thesis is a design and thermodynamical calculation of a steam condensing turbine with one controlled steam extraction and assigned technical specifications. Technical specifications are turbine inlet temperature 440,0 °C, pressure of inlet steam 38,0 bar(a), pressure in controlled steam extraction 13,0 bar(a), mass flow rate of steam in controlled steam exraction 0,0-40 t/h, temperature in deaerator 105,0 °C and temperature of cooling water in condenser 25,0 °C. Designed steam turbine works in a Rankine-Clausius cycle with a water-cooled condenser, system of low-pressure feed water heater, feed water tank with deaerator and steam boiler. Turbine was designed with regular turbine stages with reaction type of blading and with two regulation stages with impulse blading. An extraction turbine map of the steam turbine is shown in the last chapter of this work. Final parameters of steam turbine are power of 21,7 kW, internal efficiency of turbine 85,1 % and reheat factor 1,048.

This master's thesis is deals with type designing and implementing the steam turbine to the machine part of heat plant in reconstruction. The thesis consists of two parts. First part is theoretical explanation of the heating industry, steam turbines, thermal cycles and components of thermal power plants. Second part of the thesis describes the design and calculation of thermal diagrams based on turbine parameters, which were provided from Tenza, a.s. tender. There is a simplified calculation of technical-economic study in the conclusion of the thesis. The thesis output is recommendation of single final implementation solution for customer.

The goal of this Master’s thesis is to create the design of a low power condensing steam turbine. The turbine has a Curtis control stage and a reaction blading. The work also contains the calculation of gland labyrinth seals and the balancing piston, specification of a forces and losses at bearings. Finally, the gearbox and generator are selected and the efficiency at generator’s clamps is specified. The Master’s thesis includes the design drawing of a longitudinal turbine view.

The purpose of the diploma thesis is the design of condensing steam turbine for driving a compressor with mechanical power of 14,5 MW and operating speed 6800 rotations per minute on the compressor clutch. The main part is the thermodynamic calculation of the blade canal, which is verified with strength calculation to meet the requirements of the standart API 612. The next part is a basic design of gland sealing system, including a piston which is leveling the axial force with reusage of steam back to the blade canal. This thesis includes a calculation of axial and radial forces including the choice of suitable bearing, which both support the turbine. In the end there is an operating characteristics and function reliability of rising rotating speed on the total stress of blades.

Diploma thesis deals with the design of a condensing steam turbine with one controlled steam extraction. Its working range is 0 to 10 t/h. The first part contains the design of the heat balance scheme. The turbine has two unregulated steam extractions for low-pressure feedwater heater and outlet steam is cooled by water condenser. The main part is the design of the turbine flow channel with one regulative stage using impulse blading and 26 regular stages using reaction blading. The turbine rotating speed is 8500 rpm, which is strength suitable even in critical points. The following chapters are describing the design of the compensation piston and bearings. The consumption characteristic of the steam turbine is shown in the last chapter. Drawing of the turbine section is attached to this thesis. Final turbine power is 9259,7 kW and thermodynamic efficiency 85,5 %.

This diploma thesis deals with the design of a thermal scheme of steam power plant. The introductory part of the thesis is dedicated to theory about thermal power plants, especially those with supercritical steam parameters. In the following parts, there is a design of the thermal scheme of the coal burning power plant. First separate parts, then all interconnected. The last chapter deals with energy and media balance involved in the process.

The Master’s thesis deals with the approaches to the introduction of the principles of lean manufacturing and especially the concept of Just in Time (JIT). It is structurally divided into theoretical and practical part. While the theoretical part focuses on the theory of lean manufacturing and the details about steam turbines, the practical part gradually deals with the introduction of the company, production portfolio, supplier analysis and especially the production process. The practical part ends with the selection of proposals for changes in the production concept, including partial economic evaluations with regard to customer requirements to meet delivery dates, quality and required costs.

Objective of the master’s thesis is the thermodynamic design of condensing steam turbine for steelworks place on frame. Steam turbine can be operated with one controlled extraction point from 0t/h to 115 t/h at terminal power 60 MWe and speed of 3 000 per minute. The entered parameters are the admission states of steam at the inlet to the steam turbine, required properties of steam in the process extraction point and temperature of cooling water with flow in water cooled condenser. At the beginning of design of the steam turbine is thermal scheme, defining state of steam in significant places and predetermined mass flow through condensing steam turbine. The following is the design of two regulatory stages with equal pressure blades. First is for High pressure stepped section and the second is for low pressure stepped section. The solution of stepped section is divided into two chapters. The first deals with preliminary determination of the geometry and the number of stages, the second is main part of the whole thermodynamics design of a condensing steam turbine. Stepped section is solved with over pressure blading set on the drum rotor. The calculation is divided into low pressure stepped section for design mode with zero process extraction point and high pressure stepped section, which is designed for off taking mode. Steam turbine is consisted of 6 cones about 32 stages. Thermodynamics efficiency in off taking mode is 86,1 % and mass flow 71,94 kg/s, in condensing mode 83,4 %, respectively 53,01 kg/s. Part of design is strength check of blades, critical speed check and design of compensating piston with the system of labyrinth glands and bearings. Thesis is supplemented by operating characteristics and longitudinal section of condensing steam turbine.