|
|
Energy self-sufficient houses
Šošolíková, Jana ; Aigel, Petr (referee) ; Výskala, Miloslav (advisor)
This Bachelor´s thesis deals with the energy self-sufficient houses compared with the low-energy, passive and active construction. The aim of the practical part of the thesis is to assess the operational and investment costs compare with the energy of another buildings and other structures.
|
|
|
Hydrogen Production from Biomass II
Matějka, Pavel ; Lisý, Martin (referee) ; Houdková, Lucie (advisor)
This master thesis continues the master thesis Výroba vodíku z biomasy. In that work were performed first experiments of hydrogen production from beer less by dark fermentation. Further experiments will continue based on previous experiments. For the energy balance were used results from [1] and data obtained from literature searches, because the results of the experiments were not entirely satisfactory. Energy balance was calculated for a laboratory fermenter to evaluate the efficiency of energy obtainable from the hydrogen produced by fermentation in a dark laboratory conditions. It was compared the yield given in [1] and yield derived from a literature review. The conclusion presents recommendations for further research.
|
|
|
Energy audit of a residential building
Červenková, Pavla ; Vyhlídalová, Karolína (referee) ; Horák, Petr (advisor)
The subject of the thesis is an energy audit of a residential building, located in the city of Brno - Bystrc. Based on the accompanying documentation was an assessment of the current state of design and subsequent austerity measures. This analysis led to a reduction in energy intensity of buildings in terms of energy, economic and environmental. Also it was carried out Energy Performance Certificate.
|
|
| |
|
|
Energy assessment of buildings
Dobrá, Zdena ; Komínek, Petr (referee) ; Hirš, Jiří (advisor)
In the theoretical part of bachelor’s thesis there are basic terms of building energy rating and also the main announcements and guidelines. In the computational part of bachelor’s thesis there are specificated building energy systems, building solution and technical characters of cladding. Also, there are terms as is standardized usage of the building, energy comsumption for individual systems of technical equipment of buildings, draft measures and economical rating. In the Project can be found analysis of PENB, elaboration of sub-section of the energy audit and experimental verification of the building‘s real condition.
|
|
|
Impact of Fuel Moisture on Parameters of Boiler Regulation
Kiša, Michal ; Baláš, Marek (referee) ; Lisý, Martin (advisor)
The work deals with the verification of functionality of moisture content sensors MCT460-WP from the company Process sensors to measure fuel and products from biomass. The sensor is located on one of the Vyncke company boilers. In the first part of thesis are introduced basic issues of biomass. Thesis also generally describes the control and dynamics behaviour of biomass boilers and the effect of input parameters on the output parameters. The last part deals with comparing and analysing measured values with the calculated values and effects of moisture content changes on the output parameters of the boiler. As the last issue is loaded conceptual design based on on-line moisture sensing and inclusion of auxiliary fuel control into the existing system in order to stabilize the processes in the combustion chamber and output parameters. This should result in lower financial demands during boiler operation.
|
|
|
Application of Ultracapacitors in Traffic Systems
Kalina, Emil ; Vorel, Pavel (advisor)
The work deals with relatively new components allowing electric energy accumulation – ultracapacitors. It focuses on their application in traffic systems – in independent electric vehicles. Design and verification of a system with ultracapacitor and DC/DC adaptive converter was done. Control of the adaptive converter modifies very positively the time wafeform of the traction accumulator current during the drive cycle. The designed connection of ultracapacitor and DC/DC converter implemented in the drive structure of experimental electric vehicle with induction machine contributes to increment the action radius of the vehicle by 16% (determined by experimental verification). This result was achived particularly by limitation of traction accumulator current peaks, And by more effective storage of energy gained by recuperative braking of the vehicle as well. The core of the system is a control of the adaptive converter in order to provide an active filtration of the accumulator’s current to its long-period mean value, i.e. elimination of current (power) peaks. These are caused by acceleration from non-zero initial vehicle speed or by recuperative braking. This is done by a subsidiary current loop. The converter has a superior voltage regulation loop, which sets in long-time period the voltage of ultracapacitors to the proper value – indirectly dependent on the speed of the vehicle. This ensures the appropriate energy management of the ultracapacitor. In the following, properties of test set of ultracapacitors were verified. Finally, methods of suppression of capacity variability influence in series connection of these components were compiled and critically reviewed.
|
|
|
Heat pump in multivalent heating system
Šedý, Martin ; Burian, Pavel (referee) ; Fiedler, Jan (advisor)
Thesis deals with the usage of energy from recoverable resources. Theoretical part of thesis includes the description of the utilisation of heating pumps, solar radiation and biomass. The real status of the implementation is described in the second part of the thesis. Last part of the thesis contains the energy and economy valuation of real implementation.
|
|
|
Biogas utilization
Trnka, Daniel ; Jedlička, Filip (referee) ; Dvořák, Radek (advisor)
This thesis deals with the use of biogas. It describes biogas from its creation through technology for its production and its final use. Then it generally describes the biogas plants in order to summarize the advantages and disadvantages of biogas production in its current state. The conclusion refers specifically to BGS farm Farma Stonava.
|
|
|
Transmission analysis and measurements in digital television DVB-S/S2
Kaller, Ondřej ; Ulovec,, Karel (referee) ; Kratochvíl, Tomáš (advisor)
This master’s theses consists of theoretical introduction which includes basic search of referenced literature about digital television systems and picture quality classification. The results of signal character measurement of selected TV channels from satellites ASTRA 1E (DVB-S) and ASTRA 1L (DVB-S2) are provided. The energy budget calculation of downlink and results of 24-hour TS error rate measurement is included as well. The video quality by DVQL metric for each particular program of CS link stream was measured during full 24 hours.
|
guest ::
