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RDF Grate Biomass Boiler
Kudýn, David ; Křemínský, Pavel (referee) ; Lisý, Martin (advisor)
The master’s thesis deals with the design of a grate boiler with natural circulation for the combustion of refuse-derived fuels with the required heat output of 5 MW. Stochiometric calculations are executed at the introduction of the thesis, furthermore, the efficiency of the boiler is set down by an indirect method. Afterwards, the dimensions of the boiler are designed, with individual heat-exchanging surfaces. The last part of the thesis is dedicated to verifications of heat balance, the check of chlorine corrosion and setting down pressure losses for working medium and also for flue gas. The scheme of the boiler is attached in the appendix.
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Grate Biomass Boiler
Michalica, Martin ; Křemínský, Pavel (referee) ; Lisý, Martin (advisor)
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.
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RDF Grate Biomass Boiler
Malíková, Veronika ; Křemínský, Pavel (referee) ; Lisý, Martin (advisor)
The diploma thesis deals with the design of a grate boiler for the combustion of a mixture of RDF and wood chips with the specified output and parameters of superheated steam. The introduction consists of stoichiometric calculations and determination of the thermal efficiency of the boiler. The thesis is devoted to determining the dimensions of the boiler, heat transfer calculations, determining pressure losses, checking the heat balance and chlorine corrosion.
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Grate Boiler for Coal and Bagasse Combustion - 200 t/h, 9.3 MPa, 520 °C
Bartůněk, David ; Ryšavý, Milan (referee) ; Skála, Zdeněk (advisor)
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.
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Steam boiler with grate firing , burning coal or wood biomas 200 t/ h, 9,3 MPa 520°C
Čech, Jaroslav ; Hudeček, Mirko (referee) ; Skála, Zdeněk (advisor)
The aim of the work is the design of a grate boiler of 200 t . h-1 output, which will burn brown coal or wood chips. The work is divided into several parts. First, stoichiometric calculation and the calculations enthalpy of flue gases and air are performed. After calculating the heat balance and loss of the boiler was counted boiler efficiency. The design of individual heating surfaces is proposed and at the end are controlled the overall heat balance of the boiler. The calculation is supplemented by drawings.
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Grate Biomass Boiler - 88 t/h; 9.6 MPa; 520 °C
Střecha, Josef ; Hudeček, Mirko (referee) ; Lisý, Martin (advisor)
This master's thesis deals with the design of stoker-fired boiler for combustion of biomass. The main points of work are stoichiometry calculation of combustion, determining the dew point of flue gas, calculation of losses, which ones serves for determination of boiler efficiency, dimension design and detail calculation of thermosetting surfaces. In the last chapter is numbered total balance and real thermal efficiency of boiler.
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Grate Biomass Boiler
Dražka, Ondřej ; Křemínský, Pavel (referee) ; Lisý, Martin (advisor)
The aim of the thesis is a design of a grate steam boiler with capacity of 35 t/h and output steam parameters with temperature 430 °C and pressure 4,1 MPa. The first part of the thesis deals with stoichiometric calculations and boiler efficiency. The theses mainly focuses on the heat transfer calculation and the geometric design of individual heat transfer surfaces. The specifics of fuel are taken into consideration. The drawing of the basic boiler scheme is a part of the thesis.
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Grate Boiler for Biomass and Coal Co-combustion
Baláži, Martin ; Ryšavý, Milan (referee) ; Skála, Zdeněk (advisor)
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.
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Grate Biomass Boiler
Vrána, Jakub ; Křemínský, Pavel (referee) ; Lisý, Martin (advisor)
This master thesis deals with design of grate biomass boiler with 50 t/h power. A fuel of the boiler is a mixture of contaminated biomass and woodchips. The boiler produces steam with parameters of 4,2 MPa and 420 °C. Stochiometric and thermal calculations are based on given fuel composition and output steam parameters. Heat exchangers are designated in accordance with the calculations. General drawing of the boiler is attached to this document. Anti-corrosion measures are considered, due to chlorine content in biomass. Hydraulic and aerodynamic losses and dew point of the flue gas is calculated in the end.
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Steam Grate Biomass Boiler
Suchánková, Lenka ; Křemínský, Pavel (referee) ; Lisý, Martin (advisor)
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.
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