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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

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.
22

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.
23

Návrh granulačního kotle na černé uhlí, 540 °C, 9,4 MPa, tnv = 170 °C / Draft Dry Bottom Boiler for bituminos coal, 540 °C, 9,4 MPa,feed water t = 170 °C

Podhorský, Jakub January 2017 (has links)
This masters’ thesis deals with a thermal design of a draft dry bottom boiler for bituminous coal that should replace a disassembled boiler in a current boiler room. Application of SCR is intended in order to reach emission standards of NOx.
24

Kotel na spoluspalování plynů / Co-Combustion Gas Boiler

Pavlík, Marek January 2019 (has links)
This thesis deals with the design of a co-combustion gas boiler for coal gas and blast furnace gas mixture. The calculation includes stoichiometry, determinination of the boiler efficiency, steam production rate and heating surfaces sizing. This thesis also includes technical documentation of designed gas boiler. The calculation of the boiler meets the values specified by the scripts and also by documentation from PBS. The boiler was designed for 113.9 MW and 93.77 % efficiency.
25

Optimalizace peletového kotle pro spalování agropelet / Optimization of Agro-Pellets Boiler

Kurečková, Andrea January 2019 (has links)
The diploma thesis deals with optimization of pellet boiler for agropellets combustion. On the Czech market are mostly available boilers for burning wood pellets. Specially adapted agropellet boilers are pretty expensive. The work is divided into two main parts. The first part contains a research of agropellets, agropellets production and combustions of agropellets. The second part is experimental and describes the combustion test. It describes the measurement procedure, the necessary calculations and evaluation.
26

Dvoukomorový roštový kotel pro spalování digestátu / Digestate Grate Boiler

Krejčiřík, Jiří January 2019 (has links)
This master thesis deals with the properties of digestate in combustion, design of construction solution of digestate boiler and experimental verification of boiler parameters. The first chapter deals with the properties of digestate as a fuel. It is followed by a chapter dealing with the existing measured results on a similar boiler. This is followed by a stoichiometric calculation of the digestate boiler. The next chapter is devoted to combustion chamber models. This chapter is followed by a chapter with experimental verification of chamber models and combustion process tuning. The last chapter contains design of construction and operational measures.
27

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

Přikryl, Josef January 2020 (has links)
The diploma thesis contains calculations of gasification of coal boiler. The first part of thesis contains stochiometric calculations, heat balance and calculations of combustion chamber. In the next part are calculations of heat exchange surfaces and at the end of this part are calculations of regenerative air heater and total boiler balance. Calculations are made by regard to investments costs, preservation of the steam parameters and keeps emissons limits.
28

Návrh parního plynového kotle / Gas steam boiler design

Vacek, Jiří January 2021 (has links)
The aim of this thesis is a draft of a gas steam boiler with steam output of 200 t/h. The first part of the paper provides stoichiometric calculations, then there are calculations of the dew point, boiler efficiency and the amount of gas. After that, calculations and a draft of the combustion chamber are carried out and then heat balances are drafted. In the following text, geometric properties of individual heat exchanging surfaces are drafted. At the end, there are control calculations. This thesis contains a blueprint of the gas steam boiler.
29

Návrh autonomního topného zdroje / Project of Autonomous Heating Source

Pejcl, Jiří January 2014 (has links)
The diploma thesis deals with design of a suitable heat source for heating and hot water. There are dealt with operational costs of different types of heat sources, which are compared with one another. The next part is the implementation of specific proposal of the heat source - heat pump ground/water with deep wells and measuring system. The last part describes measuring several operating modes of the heat pump.
30

Kotel na spalování výpalků lihovarů / Steam boiler for fytomass

Baláš, Jiří January 2008 (has links)
The purpose of this Diploma Thesis was the construction design of the steam boiler for fytomass. For the specified parameters of biomass have been gradually implemented stoichiometric calculations of which are further based calculation of enthalpies of combustion gas. In the next part have been dealt with heat balance of the boiler, the efficiency of the boiler, recirculation of exhaust gases and the temperature of the combustion gases in outlet from fire. Thereinafter, the proposal of particular heat surfaces of steam boiler was solved, so that the resulting number and size correspond to the desired parameters. The parameters are temperature, pressure and the amount of steam.

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