• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 249
  • 62
  • 20
  • 16
  • 8
  • 8
  • 5
  • 4
  • 3
  • 2
  • 1
  • 1
  • Tagged with
  • 392
  • 213
  • 124
  • 116
  • 100
  • 93
  • 70
  • 69
  • 61
  • 61
  • 54
  • 52
  • 52
  • 52
  • 52
  • 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.
131

Návrh roštového kotle s přirozenou cirkulací na spalování slámy z pšenice,žita a ječmene / Steam boiler with grate firing burning wheat straw

Křivák, Petr January 2014 (has links)
The aim of the thesis is the design of the steam grate boilers of 40 t/h for straw burning. The required parameters are generated steam temperature 420 ° C and a pressure of 5.5 MPa. The specified fuel is cereal straw with a calorific value of 9.5 MJ/kg. The calculation is made from the stoichiometric calculation of elemental analysis, to calculate the individual dimensions and heating surfaces of the boiler.
132

Náhrada stávající výměníkové stanice pára/voda za plynový kotel / Substitution of district heating by gas boiler

Dobiáš, Ladislav January 2014 (has links)
In this work, there is an overview of the design concept of condensing boilers and types of heat pumps. The current state of heating in company is assessed and possible variants are given for techno-economic evaluation. For boiler room with the gas boiler is prepared a proposal with condensation boiler. For parameters are designed and calculated proposals to form a condensing boiler. The end of the work is focused on the advantages of gas boiler and heat pump.
133

Návrh parního kotle na spalování zemního plynu, parametry páry 170 t/h, 6,7 MPa, 485°C / Steam boiler for natural gas, steam parametres 170 t/h, 6,7 MPa, 485°C

Daubner, Tomáš January 2014 (has links)
The topic of master thesis is the thermal calculation and proportion design of gas-fired steam boiler. The first part describe technical characteristics and parameters of the boiler. The main part of this thesis is the thermal calculation of the boiler.
134

Konstrukce zařízení pro automatické plnění kotle dřevem s navržením automatizace a regulace přikládání / Design of equipment for automatic filling the boiler with wood designing automation and control stoking

Polák, Aleš January 2015 (has links)
This thesis describes the structural design of automatic stoking conveyor to log into the boiler during operation. The work described in the first part of the current methods of burning logs of wood, the combustion process and the possibility of smoke detecting. The second part focuses on the structural design of the device and a description of the implementation of functional sample.
135

Řídicí systém spalovacího systému EKOGEM / The control system of the combustion system EKOGEM

Holešovský, Petr January 2015 (has links)
This master´s thesis deals with automatic control of solid fuel boiler. Main goal of this thesis is to design control system for combustion system EKOGEM. In this thesis is introduced combustion system and its designed control. Thesis describes realization of control system and presents results, in which shows its benefits for combustion system. Control system is realized in NI LabVIEW environment.
136

Projekt náhrady plynového zdroje biomasou / The project to replace gas resource by biomass

Lochman, Petr January 2015 (has links)
This master’s thesis describes the design and calculation of the biomass hot water boiler which should be used for heating of office buildings in a collective farm. Fuel composition was determined by recommended literature. Stoichiometric calculations were processed for the fuel composition. The required boiler heat output was determined and compared with the original gas boiler, which was previously used for heating. The thermal calculation of the boiler and the design of the heat exchanger was also performed.
137

Vertikální kotel na spalování zemního plynu / Vertical Boiler for Natural Gas Combustion

Sedlák, Petr January 2015 (has links)
This master´s thesis is dealing with the thermal calculation and design of boilers for natural gas combustion. The aim is to design the heating surfaces, so as to meet the requirements of the steam temperature of 490 ° C, the pressure of 7 MPa and the steam output of 60 t/h.
138

Plynofikace horkovodního kotle / Fuel change for hot water boiler

Mik, Martin January 2015 (has links)
This thesis deals with the fuel change for hot water boilers with wattage of 116.3 MW. At first a stoichiometric calculation is drawn. Calculation of pressure loss in pipeline follows. Consequential part elaborates on calculation of parallel connected heating surfaces following with a draft of regenerative air heater Ljungtröm. Conclusively, a calculation is carried out to verify the functionality of the serial connection of the heating surfaces.
139

Kotelna spalující zemní plyn / Gas fired boiler house

Hosnedl, Pavel January 2012 (has links)
This master thesis deals with problems of determining operational and safety risks at gas boiler room in office building with total output of 4×49 kW. The gas boiler room is equipped with four boilers Geminox THRi 10-50. The aim of this master thesis is to determine the potential operational and safety risks of gas boiler room. The master thesis is divided into several parts, when the first part is describing the current situation with some theoretical knowledge and risk analysis. This part also outlines possible solutions for identification and quantification of risks to the gas boiler room. The specific risk factors are determined at other part of master thesis and there is also their analysis, which is solved by cause and effect diagram and by Failure Mode and Effect Analysis. The specific precautions are suggested for chosen risks in final part of master thesis.
140

Návrh roštového kotle na spalování tříděného odpadu / Draft grate boiler for combustion of sorted waste

Paštěka, Michal January 2016 (has links)
The aim of the master’s thesis is design of grade boiler for combustion refuse derived fuel. There are specified the steam parameters and the fuel-element analysis, based on this analysis are determined stoichiometric calculation. Furthermore is calculated heat balance of the boiler, heat losses and thermal efficiency of the boiler. From the parameters are design main dimensions and parameters heat-transfer surfaces and the boiler.

Page generated in 0.0345 seconds