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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
261

Parní kotel na spalování tříděného odpadu 85t/h / Steam boiler for sorted waste burning 85t/h

Vítámvás, Zdeněk January 2011 (has links)
This thesis deals with a project of steam boiler to combustion of refused-derived fuel. With respect of required fuel and output parameters of the steam was worked out stoichiometry, energy loss and boiler efficiency, heat flows was allocate to individual heat exchange surfaces. The heat exchange surfaces was calculate and project in detail.
262

Modely a přístupy v oblasti počítačové simulace procesů / Models and approaches in the field of computer simulation of processes

Čech, Michal January 2011 (has links)
The diploma thesis deals with computer simulation of processes in the field of energy utilization of waste and biomass. The first part contains description of energy utilization from waste and biomass and fundamental devices of energy systems. There is also described methodology of modeling and techniques used for processes simulation. The next part is focused on mathematical models explanation of processes with constant and variable efficiency. In practical work are compared results from individual considered mathematical models with real data which were obtained from the real operation of waste energy plant. With use of gained mathematical models is considered model situation of cogeneration in the device of biomass and coal co-firing. At the end of this work is suggested implementation of created mathematical models into simulation program W2E.
263

Parní kotel na dřevní štěpku s pískem 92,5t/h / Steam boiler for biomass and sand 92,5t/h

Špiláček, Michal January 2011 (has links)
This master’s thesis is dealing with design of steam boiler for wood chips. Wood chips are considered as biomass and so the steam boiler is considerate to enviroment. Main purpose of this work is calculation of size and number of water/steam heating surfaces so the boiler can produce steam with required parametres of temperature, pressure and amount.
264

Modernizace a ekologizace teplárny / Heating plant modernization and environmental

Sobotka, Tomáš January 2012 (has links)
The target of this diploma thesis is design of cogeneration unit with following requirements: • Installation of new unit instead of the old and used up one. • Electric energy supply within Supportive service – fast starts • Greening (replacement of coal with natural gas) At the beginning I deal with the current state of old unit. In the next part there is the design of new technological unit, which consists of design of boilers, gas engines, steam turbines. Final phase of the thesis includes economical analysis focused on setting of financial return.
265

Odsíření práškového granulačního kotle K3 na Teplárně Olomouc / Desulphurization of pulverized coal bouler (dry bottom ash) in Teplarna Olomouc

Haluza, Jakub January 2012 (has links)
This master thesis deals with the feasibility studies desulphurization of powder granulation K3 boiler at Olomouc heating station. K3 boiler burns black energetic coal and after January 1st, 2016 will not meet new more strict emission limits. The theoretical part of the thesis charts usable desulphurization methods from which the semi-dry NID appears as the most appropriate one. In the practical part there is performed a stoichiometric calculation of the flue gas and the balance of raw materials and output products. The possibility of NID method usage is confirmed here. Next the annual operating cost of the desulfurization process is calculated and some NID systems already installed references are presented.
266

Návrh vytápění pro třípatrový řadový dům / A space heating system for a three-story row hose

Aulehla, Jiří January 2015 (has links)
This master`s thesis describes the design alterations that lead to a reduction in heat loss of the house, an extension of living space in the attic and the subsequent reconstruction of the heating system. The first is presentation of the house. After that, there is calculation heat loss of the house. The next step contains design of a reconstruction for every room and calculation modified heat loss. Another point this work is design the reconstruction of the heating system, extension heating system to the attic floor, calculation pressure losses and selection condensing gas boiler. After that is designed regulation with central control unit and electric thermostatic radiator valve. The last part of master`s thesis is focused on benefit assessment changes, budget and return of investment. The drawings are listed in the appendix.
267

Parní kotel s přihříváním páry na spalování vysokopecního plynu / Boiler with steam reheating for burning blast furnace gas

Šenovský, Petr January 2014 (has links)
The aim of this Diploma thesis is design of steam boiler with steam reheating, for combustion the blast furnace gas. The fuel composition and primary parameters for calculation of the boiler were provided. In the first part the fuel composition is described. The main part of the thesis consists of stoichiometric calculations, establishing efficiency of the boiler, calculating combustion chamber as well as design and calculation individual heating surfaces. Part of the work is also drawing documentation of boiler.
268

Návrh opatření pro plnění emisních limitů u kotle bloku 210 MW / The proposal of measurements to fulfill emission limits for boiler of power unit 210 MW

Smokoň, Pavol January 2014 (has links)
This master‘s thesis deals with denitrification of brown coal-fired boiler of electric power plant. First chapters describe technical characteristics of the boiler and possible measurements which would lead to lowering NOx emissions. In order for boiler to meet emission standards valid from 1.1.2016 flue gas treatment by selective catalytic reduction is proposed. Main part of the thesis is thermal calculation of the boiler with modifications necessary in order to apply SCR. The aim of calculation is to determine flue gas exit temperature and temperature at catalyst area in order to assess the suitability of proposed modifications.
269

Vliv vlhkosti paliva na parametry regulace kotle / Impact of Fuel Moisture on Parameters of Boiler Regulation

Kiša, Michal January 2014 (has links)
The work deals with the verification of functionality of moisture content sensors MCT460-WP from the company Process sensors to measure fuel and products from biomass. The sensor is located on one of the Vyncke company boilers. In the first part of thesis are introduced basic issues of biomass. Thesis also generally describes the control and dynamics behaviour of biomass boilers and the effect of input parameters on the output parameters. The last part deals with comparing and analysing measured values with the calculated values and effects of moisture content changes on the output parameters of the boiler. As the last issue is loaded conceptual design based on on-line moisture sensing and inclusion of auxiliary fuel control into the existing system in order to stabilize the processes in the combustion chamber and output parameters. This should result in lower financial demands during boiler operation.
270

Dvoutlaký horizontální kotel na odpadní teplo (HRSG) / Heat Recovery Steam Generator with Two Pressure Levels

Smolinský, Petr January 2015 (has links)
This master‘s thesis deals with the design of horizontal heat recovery steam generators (HRSG) with two pressure levels after a combustion turbine. In the introduction part is performed thermal calculation and proposal of a heat transfer surfaces. Furthermore, are suggested dimensions of the drums and pipes for flooding and transferring. The emphasis is placed on the fulfillment the required parameters of steam and flue gas at HRSG outlet. At the end is calculated loss of boiler draft and made technical documentation a drawing of the boiler.

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