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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.
101

Chladicí zařízení s pasivním výparníkem / Refrigeration system with passive evaporator

Carbol, Marek January 2020 (has links)
This thesis is concerned with the design of a heat pump that does not use a ventilator during operation. In the introductory chapter, the functioning and the basic components of this device and other types of heat pumps are described. Properties of some commonly used refrigerants and oils as well as their classifications are stated. Due to the absence of a ventilator, a special heat exchanger was designed to achieve the required heat power. The choice of components in this refrigeration system takes into consideration the efficiency and functionality of the device.
102

Parní kotel na spalování tříděného odpadu 85t/h / Steam boiler for sorted waste burning 85t/h

Vítámvás, Zdeněk January 2011 (has links)
This thesis deals with a project of steam boiler to combustion of refused-derived fuel. With respect of required fuel and output parameters of the steam was worked out stoichiometry, energy loss and boiler efficiency, heat flows was allocate to individual heat exchange surfaces. The heat exchange surfaces was calculate and project in detail.
103

Parní kotel na dřevní štěpku s pískem 92,5t/h / Steam boiler for biomass and sand 92,5t/h

Špiláček, Michal January 2011 (has links)
This master’s thesis is dealing with design of steam boiler for wood chips. Wood chips are considered as biomass and so the steam boiler is considerate to enviroment. Main purpose of this work is calculation of size and number of water/steam heating surfaces so the boiler can produce steam with required parametres of temperature, pressure and amount.
104

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.
105

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.
106

Využitelnost výpalků z výroby ethanolu / Usability of stillage from ethanol production

Audy, Dan January 2015 (has links)
This work solves the use of stillage from ethanol production. Also solves processing into material DDGS and then solves the material and energy balance. This material and energy balance was calculated for 7070 kg of stillage per hour. The final energy requirements of the process were based on the amount of stillage produced to obtain 1 m3 of ethanol. The results of this work offer an insight to the problems of processing stillage. Thanks to conversion for 1 m3 of produced ethanol, results is also offerring the possibility of fast conversion of an approximate energy needed for devices of other capacities.
107

Návrh parního kotle na spalování hnědého uhlí, parametry páry 235 t/h, 14 MPa, 540°C / Stean boiler for sub bituminous coal, steam parametres 235 t/h, 14 MPa, 540°C

Horák, Stanislav January 2014 (has links)
The aim of the work is to design a brown coal combustion boiler of 235 t/h output. The work is divided into several parts. First, stechiometric calculations and calculations enthalpy 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, individual heating surfaces are proposed and at the end of the calculations are controlling the overall energy balance of the boiler. For calculation was design documentation added.
108

Navrhněte parní kotel s přirozenou cirkulací na spalování dřevní štěpky / Steam boiler with natural cirkulation for wood cheaps burning

Vaculík, Jaroslav January 2014 (has links)
The purpose of this Diploma Thesis is the construction design of the steam boiler with natural circulation for the combustion of wood biomass according to the specified parameters. It is the boiler with the power of 12 tons per hour of superheated vapor output parameters of 3,3 Mpa at a temperature of 400 °C and a temperature of feed water 105 °C. For the specified parameters I first calculated the stoichiometric calculations, boiler efficiency, and followed by using geometrical parameters of the blocks and thermal calculations set design and the number of heat transfer surfaces, depending on the input parameters of the air and water and output parameters of vapor. The work also includes drawings of the boiler.
109

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.
110

Roštový kotel na spalování uhlí a nebo dřevní biomasy o parametrech 200 t / h 9,3 MPa, 520°C / Steam boiler with grate firing , burning coal or wood biomas 200 t/ h, 9,3 MPa 520°C

Čech, Jaroslav January 2015 (has links)
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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