Global ETD Search

41	Změna palivové základny kotle John Thomson / Change John Thomson boiler fuel base Hradecký, Martin January 2012 (has links) This Thesis deals with thermal control calculation of the existing John Thomson steam boilers burning heating mazut and subsequent thermal conversion to natural gas. The main parts of the calculation are as follows: stoichiometry, thermal balance, conversion of the combustion chamber and heating area.
42	Kotel na spalování dřeva s hnědým uhlí (váhový poměr 50/50),30t/h / Steam boiler for burnig mix of wood and sub-bituminous coal(mixing 50/50).35t/h Chmelíček, Jiří January 2013 (has links) This master´s thesis deals with the constructional and calculation design of the boiler for burning wood and sub-bituminous coal. The work is divided into several parts. First, stoichiometrics calculation and enthalpy calculations of air and flue gas are performed. It is calculated heat balance of the boiler, the boiler losses and the thermal efficiency of the boiler is determined. After designing the combustion chamber thermal calculation is made. Then, the dimensions and individual heating surfaces are proposed. At the end of the calculations are controlling the overall energy balance.
43	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.
44	Roštový kotel s přirozenou cirkulací na spalování dřevní štěpky / Grate Boiler for Wood Chips Combustion Kozák, Tomáš January 2015 (has links) The thesis is dedicated to the design of the steam boiler which burns wood chips, with a natural circulation of the water. It is a grate boiler, which produces 20 t/h of the steam. The output parameters of the steam are 420 °C and 5 MPa. The feedwater temperature is 125 ° C .The thesis gradually deals with stoichiometric calculations and determines the efficiency of the boiler. Then it describes the design of the fireplace and thermal calculations of each heat transfer surfaces. The appendix includes drawings of the boiler.
45	Roštový kotel na spalování uhlí a dřevní biomasy / Grate Boiler for Biomass and Coal Co-combustion Baláži, Martin January 2016 (has links) This thesis solves a design of a grate boiler burning wood chips or brown coal with a heat output of 160 MW. Stoichiometry flue gas is calculated according to the specified composition of each fuel. The dimensions of the individual heating surfaces are primarily calculated for burning wood chips and subsequently checked for the combustion of brown coal. Design of the boiler is completed by checking the overall heat output. Boiler design is accompanied by drawing documentation.
46	Plynový kotel na spalování místního zemního plynu / Gas Boiler for Local Natural Gas Combustion Kozák, Ondřej January 2017 (has links) This Master´s thesis deals with a thermal calculation and dimensional design of steam boiler for natural gas combustion with respect to the high efficiency of the boiler. It includes stoichiometric calculation and calculation of technical specifications of the boiler. Dimensions of combustion chamber are proposed. The crucial part of this thesis includes thermal calculation of designed heat-exchanging surfaces. The heat balance of the whole boiler is made to verify the results.
47	Modeling of Heat Transfer Wahlberg, Tobias January 2011 (has links) Modeling of heat transfer using Dymola. In this report a evaporator, economizer and superheater where modeled. The report describes how the models where modeled and what input was most suitable for a accurate model. Boiler steam superheater condenser overall heat transfer coefficient heat exchanger Dymola Modelica heat transfer fouling economizer process simulator evaporator värmeöverföring kondensor överhettare ekonomiser värmeväxlare ånga ångteknik kondensering energiteknik förångare simulator Thermal energy engineering Termisk energiteknik
48	Parní kotel na biomasu menších výkonů / Steam Grate Biomass Boiler Suchánková, Lenka January 2021 (has links) The master's thesis describes the design of the steam boiler, which burns biomass with heat output of 6 MW. The required parameters of the steam are a temperature of 300 °C and a pressure of 2,5 MPa. The thesis is gradually devoted to stoichiometric calculations through heat losses and boiler efficiency, to the design of the combustion chambre, heat exchangers and pressure losses. Part of the thesis is drawing documentation of the boiler.
49	Návrh parního generátoru pro modulární reaktor / Design of the steam generator for modular reactor Černý, Marian January 2012 (has links) Subject of this thesis is design of the steam generator for modular reactor. The dissertation consist of the theoretical part, where are described heat-exchangers and steam generators used in nuclear power plants. Second part contains theoretical calculations in the first approach (thermal, hydraulic and strenght calculation). In the next part are particular variants of steam generator selected. For the final variant are necessary calculations (introduced above) and drawings of selected parts are done. In the final statement is technical solution evaluated, and the parameters of the steam generator are compared with actually used steam generators.
50	Kotel na spoluspalovaní vysokopecního plynu a koksárenského plynu / Gas Boiler for Blast Furnace and Coke Gas Mixture Combustion Dohnal, Jakub January 2016 (has links) This diploma thesis deals with the constructional and calculation design of boiler for blast furnace and coke gas mixture combustion, including sizing of the heating surfaces. The opening section is dedicated to a brief characterization of burned fuels. The following chapter shows the parameters and composition of the resulting fuel mixture. The main part of this thesis involves; determining the stoichiometric amount air required for combustion and the resulting flue gas, determining the boiler efficiency and steam production rate, calculations regarding the combustion chamber and the detailed design of the individual heat exchangers. At the end of the thesis the heat balance of the entire boiler is verified. Drawing documentation of boiler is also part of this diploma thesis.

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