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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.
21

Roštový kotel na spalování uhlí a bagasy - 200 t/h, 9,3 MPa, 520 °C / Grate Boiler for Coal and Bagasse Combustion - 200 t/h, 9.3 MPa, 520 °C

Bartůněk, David January 2017 (has links)
The object of the thesis is to design a grate boiler for bagasse and brown coal combustion with a heat output of 160 MW. Calculations of a flue gas stoichiometry are based on known element analyses of each fuel. The crucial part of the thesis includes designs of heat-exchanging surfaces, where the bagasse is considered as the main fuel while the brown coal is the spare one. Overall thermal balance and an actual boiler efficiencies are provided in last chapters. The boiler-outlet flue gas temperature is compared with the dew point temperature at the very end of the thesis. As a part of the thesis there is a design of the boiler attached.
22

Návrh roštového kotle s přirozenou cirkulací na spalování RDF / Design of steam boiler with grate firing burning RDF

Basov, Mykhailo January 2017 (has links)
This thesis deals with a project of steam boiler to combustion of refused-derived fuel. Considering the required fuel and output parameters of the steam was made the thermal calculation of boiler with it design and an individual calculation of heat exchange surfaces; hydrodynamic and aerodynamic calculations of the steam boiler.
23

Výpočet kotle na hnědé uhlí pro aplikaci SCR / Calculation of Brown Coal Boiler for SCR Application

Mizerovský, Karel January 2017 (has links)
This Master´s thesis deals with the verification calculation of boiler which burns brown coal for the application of the selective catalytic reduction method. The thesis is divided into several parts. In the first of all is performed the calculation of the furnace chamber which involves stoichiometrics calculations and enthalpy calculations of air and flue gas. In the second part the heat balance of the boiler, the boiler losses and the thermal efficiency are determined. After all the heating surfaces are calculed for the verify the dimensions. In the conclusion of the thesis we looked for the temperature range which is used for the SCR application. Then the improvements for the appropriate temperature range are designed.
24

Roštový kotel na spalování tříděného odpadu / Grate RDF Boiler

Krolák, Michal January 2018 (has links)
This master's thesis deals with design of steam grade boiler for burning refuse derived fuel with power output of 70 t/h. The assignment contain a requiered steam output parameters and composition of fuel. From this composition of fuel is calculated stoichiometric calculation, the heat loss and the efficiency of boiler. After that follows a design of the boiler with closer design of each of the heating surfaces.
25

Roštový kotel na spalování biomasy / Grate Biomass Boiler

Michalica, Martin January 2018 (has links)
This thesis deals with the design grate boilers with natural circulation for the combustion of contaminated biomass. The boiler output is output 45 t/h. Produced superheated steam with the output parameters of 440 °C 4,2 at MPa feed water temperature 115 °C. The stoichiometric calculations and the thermal calculation are based on the specified fuel composition. Thanks to this, the basic dimensional design of the boiler and its efficiency are determined. Calculation of this work focuses mainly on thermal calculations and dimensional design of individual heat transfer surfaces. Basic drawing of the boiler is available in the attachment of the thesis.
26

Plynový kotel na spalování vysokopecního a koksárenského plynu o výkonu 220 t/h / Gas Boiler - 220 t/h

Flodr, Jan January 2020 (has links)
For set parameters of a steam and a boiler feed water is designed a thermal and dimensional plan of the boiler, allowing high efficient requests. A boiler is used for combustion of blast furnace gas contains 10% of a natural gas used as a stabilisation element.
27

Změna palivové základny uhelného kotle / Changing the fuel base of the coal boiler

Kallas, Miloš January 2020 (has links)
This thesis deals with the change of the fuel base of a coal boiler due to the reduction of CO2 emissions and its thermal recalculation. In the first part, there is implemented calculation of the combusting chamber. This is followed by the recalculation of the heat transfer surfaces. The emphasis is placed on the preservation of the exsiting steam parametrs.
28

Kotle na spalování biomasy / Steam boiler for biomass

Nechvátal, Ondřej January 2008 (has links)
The aim of this diploma thesis is the construction design of the steam boiler burning biomass according to the set parametres (450°C, 5,2MPa, 5,83kg/s).There are main parts to solve and design: stoichiometry, energy balance, combustion chamber, heat-delivery surface and strenght calculation output chest of superheater.
29

Kotel na spalování výpalků lihovarů / Steam boiler for fytomass

Rotrekl, Jan January 2008 (has links)
This diploma thesis deals with a design of a boiler for stillage combustion. Stoichiometric calculations and enthalpies of combustion gases have been calculated from the specified parameters. In addition, heat calculation, design of the combustion chamber dimensions and dimensioning of heat surfaces were accomplished. The boiler has an evaporator with natural circulation and a fire grate.
30

Kotel na spalování čistého dřeva 60t/h / Steam boiler burning wood 60t/h

Umýsa, Radovan January 2011 (has links)
This diploma thesis deals constructional and calculation design of the steam boiler 60t/h of clean burning wood. For the parameters of the stoichiometric calculations are carried out and enthalpy calculations of combustion and air. The collected data is then made It a diagram of air and flue gas. The following are the calculations with the heat balance calculations of losses and determination of the boiler thermal efficiency of the boiler. It is made of the combustion chamber design and its thermal calculation. After determining the main dimensions of the combustion chamber moves continue the calculation of boiler heating surfaces. At the end of the calculations are controlling the overall energy balance. Boiler output parameters as temperature, pressure and quantity of the steam.

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