|
|
Osmotic power plants
Šikula, František ; Brázdil, Marian (referee) ; Šnajdárek, Ladislav (advisor)
The main purpose of this bachelor thesis is a theoretical description and an analysis of osmotic plants, mainly their suitability for being used as an alternative source for energy making. In the first part of this thesis are explained elementary principles of converting osmotic power to energy. In the next part are presented main characteristic features of an osmotic power plant. This section consist of description of its potential location, of water pre-treatment and of membranes units. The last section of this thesis consists of a case study, which analyses a potential osmotic power plant located in Scotland. In this case study are summarized all assumed approximate costs of this power plant. In the conclusion was proved that nowadays osmotic power plants are not financially favorable.
|
|
|
Lifetime and reliability of thermoelectric modules
Rešiliáno, Tomáš ; Šnajdárek, Ladislav (referee) ; Brázdil, Marian (advisor)
The thesis describes the construction of thermoelectric modules used for both electricity production and cooling. Above all, the thesis describes the influences, along with their causes and consequences, that have a major impact on reliability and long-term operation of thermoelectric modules. The thesis further describes the basic quantities with which we can assess the thermoelectric modules and also describes basic methods to measure these quantities. For the purposes of the thesis was conducted an experiment, during which the internal electrical resistance of unused, used and damaged thermoelectric modules was measured. The results were compared with the physical condition and operational history of the measured thermoelectric modules.
|
|
|
Assessment of investment in heating house
Baláži, Martin ; Šnajdárek, Ladislav (referee) ; Baláš, Marek (advisor)
Bachelor thesis assesses the ways in which you can reduce the cost of heating a house. After the calculation of heat loss, there are chosen appropriate thermal-insulation applications to reduce heat transmission through the facade, roof and windows of the building. In the next step is chosen more efficient and environmentally friendly way of heating. Return on investments of selected applications, are shown graphically.
|
|
|
Test pressurizing equipment for U-pipes
Hrdlička, Milan ; Šnajdárek, Ladislav (referee) ; Svoboda, Pavel (advisor)
In this bachelor thesis I would like to introduce you to exchangers which use U-tubes and creating a functional pressurizing product. The product has to securely attach the tube and perform the pressure test of the medium. Its control has to be simple and easy. In the thesis I also focused on their constructional solution and possible improvements.
|
|
|
Natural gas expansion unit
Žáček, Ondřej ; Šnajdárek, Ladislav (referee) ; Pospíšil, Jiří (advisor)
The bachelor thesis "Natural gas expansion unit" relates to the problematics of gas pressure reduction from transport network of NET4GAS to the distribution network of JMP Net s.r.o. The thesis consists of three parts. In the first part the reader is introduced to the methods of natural gas pressure reduction, to the behavior and properties of natural gas and to the problematics of pressure levels of the gas pipelines. The second part describes the important segments of the expansion station in Velké Němčice such as the expansion turbine, cogeneration, regulators etc. The third part contains calculation of the most effective operation of the station.
|
|
| |
|
|
Surface condenser
Kloda, Michal ; Baláš, Marek (referee) ; Šnajdárek, Ladislav (advisor)
The bachelor’s thesis dealing with surface condensers is split into three main sections. The first section describes surface condenser, problems of heat transfer during condensation and a method of determining the heat transfer coefficient using the methods HEI and VTI-CKTI. The second section deals with the main construction elements and their materials, where the special attantion is paid to condenser tubes materials. In the third and the last section, the simplified thermodynamic design of surface condenser for given parameters is shown.
|
|
|
Steam ejector pump
Třináctý, Jan ; Baláš, Marek (referee) ; Šnajdárek, Ladislav (advisor)
The aim of this theses is to do search about maintaining vaccum in surface condensors and subsequently propose basic dimension of one stage steam ejector. The first part deals with the issue of vacuum. The following part is dedicated to description of various types of vacuum pumps. Hence it describes the principle of operation of each pump as well as their output. The following part deals with vacuum and vacuum technology in the field of power engineering. This part is dedicated to those types of vacuum pumps that are used in power engineering, especially to steam ejectors which are most widely used. The final part is addressed to the design of single stage steam ejector. This part contains the calculation of pump dimension. The conclusion evaluates the design of one stage steam ejector.
|
|
|
Production of cold
Soľár, Slavomír ; Šnajdárek, Ladislav (referee) ; Kracík, Petr (advisor)
This bachelor thesis is focused on description of cool production and properties of two basic cooling units. There are also included calculations for comparing these two units in term of consumption and operating expenses. Part of labour is devoted to applications of units in Czech Republic and rest of World, where the system of district cooling is used. It is also important to acquaint with legislation and regulations, which are related with production of cool and manipulation with equipments and refrigerants.
|
|
|
NOx production and elimination content in the flue gas
Čech, Jaroslav ; Šnajdárek, Ladislav (referee) ; Hrnčířová, Michaela (advisor)
The Bachelor thesis deals with oxides of nitrogen, resulting from the combustion process. The thesis is concentrated mainly on the description of the emergence mechanisms and on the various measures that are used to reduce their concentration. Part of the thesis is also focusing on legislation in the field of air protection, with the values of the emission limits valid for the Czech Republic and the European Union.
|
guest ::
